Rubic is turning three, and we couldn’t be more excited to celebrate it with all of you! We proudly look back on hundreds of accomplishments that have shaped our journey this year: 80+ New Integrations to reach 70+ Blockchains, 30+ Successful Promo Campaigns, 20+ Innovative Features, Enhanced Security … and more, later in this article!
While we continue to provide cost-efficient routes via 90+ DEXs and bridges for #crosschain swaps between established networks like Ethereum, BNB Chain, and Polygon, we’re also breaking new ground for emerging networks like Linea, Base, Mantle, and more. We embarked on this route about a year ago, and L2s already constitute 42% of our volume!
What Rubic Has Achieved in 2022–23
As the third year commences, our team extends heartfelt gratitude to every member of our cherished community. You power our progress, standing as the bedrock against market fluctuations and crypto turbulence.
The recent year has defied demanding challenges, and Rubic emerged stronger than ever. This year’s achievements encompass innovation, evolution, and continuous expansion!
Partnerships
Reflecting on our growth, it’s astounding to recall that Rubic supported just 20 networks last September. Today, we proudly integrate 70+ blockchains, encompassing:
10 L2 ETH Blockchains: Arbitrum, Optimism, zkSync Era, Base, Mantle, Metis, Polygon zkEVM, Linea, PulseChain and Boba ETH.
L2s already constitute 42% of our value (6 months ago it was just 14%).
30+ non-EVM blockchains, which clearly set Rubic aside from the competition.4 #Testnets : Scroll, Goerli, Zetachain, Arthera.
We’re committed to integrating new, popular chains and testnets, so that Rubic can solve any Web3 cross-chain need. Rubic = Interoperability.
In our ongoing efforts to enhance Smart Routing, we’ve aggregated an impressive roster:
Over 20 DEXsMore than 7 new Cross-Chain providers
Over the course of this year, we participated in over 30 major campaigns, including highly-anticipated ones like the zkSync Era and Polygon zkEVM campaigns.
Innovations and Security
Beyond bolstering Rubic’s Smart Routing capabilities, we’ve introduced over 20 new features. Let’s delve into the most groundbreaking innovations from this year:
Testnet LaunchFee Sharing via Staking‘Revoke Approval’ FeatureToken Security Rating Feature
And of course…
Introduction of SwapToEarn.
The SwapToEarn Feature, unveiled in April, has garnered immense participation. A remarkable 61,000+ participants have engaged.
Very soon we will perform a comprehensive UI/UX Update of our app, achieving a harmonious balance between style and convenience. As we approach another year, a fresh design update beckons, signalling the dawn of a new chapter for Rubic.
While Rubic’s product continued to be upgraded, we remained steadfast in fortifying our security measures. This year saw a reimagined Security Architecture, including:
The hiring of Rubic’s Chief Information Security Officer.A thorough audit of Rubic’s New Contracts.The implementation of a revamped Information Security Strategy.The launch of a Bug Bounty Campaign.
New Highs
The flourishing growth of our numbers has been a source of immense pride this year.
Over 150,000 Total Unique Users have joined our ranks since the start of the project, forming a dynamic and engaged community.Our platform has facilitated an impressive Total Trading Volume exceeding $463M, a testament to the robust activity within our ecosystem.An astonishing Total Transaction Number of 462,000+ reflects the seamless interactions and transactions facilitated through Rubic.
Yet, our journey doesn’t end here. With unyielding determination, we continue to pursue a multitude of new accomplishments, each one contributing to the evolution and growth of our platform.
With every stride, we grow for our community, and the journey ahead is nothing short of exciting!
About Rubic
Rubic aggregates 70+ blockchains and testnets, while it enables swaps of 15,500+ assets with the best rates, highest liquidity, and transaction speeds — in one click, thanks to the integration of 90+ DEXs and bridges.
Users no longer have to roam across Web3 to compare rates and liquidity; they can make cross-chain and on-chain swaps of any available token to any other one on Rubic Exchange. On top of that, Rubic’s app along with our cross-chain widget provide fiat on-ramp services, making crypto easy to access and buy.
We also provide tools for dApps to enable cross-chain swaps. Rubic’s functionality can be implemented by any crypto project willing to become interoperable, with an easy-to-install widget and fully customizable SDK.
#DeFiChallenge #CryptoTalks #crypto2023

Today, we are thrilled to announce a game-changing integration to the Rubic Protocol. Soon, Rubic will be the world’s first-ever #Cross-Chain Tech Agreggator to support 100+ chains!
This has become possible with the integration of ChangeNOW as the newest Provider to the Rubic App. Now, our users are able to access numerous blockchains (also non-EVM), such as #Bitcoin , Polkadot, Solana, Cardano, Tezos, Near, Litecoin, Ripple, and more. If you need to utilize cross-chain, look no further! Rubic will have what you need.

Rubic x ChangeNOW
We will gradually add blockchains to eventually reach the mark of 100+ blockchains on our App. With this integration, we’ve added the first 12 networks, increasing the overall number of blockchains available for cross-chain swaps to 70+:
BITCOINRIPPLEICPCARDANODOGECOINSOLANAPOLKADOTLITECOINMONERONEARALGORANDZILLIQA
Let’s take a closer look at this integration, so as to fully understand its advantages.
A Wider Range of Available Blockchains
While we can’t list all 100+ chains right here, we would like to highlight some others in addition to those mentioned above:
Aptos, Cosmos, EOS, Hedera, IOTA, Kusama, Stellar, Osmosis, TON, Thorchain, Waves, WAX, and others. These networks are not usually supported by most bridges, which makes Rubic the ultimate destination for cross-chain swaps.
This week, Cross-Chain swaps are only possible to the newly integrated blockchains from any of the previously integrated 26 blockchains. By the beginning of March, cross-chain swaps will be supported in both directions.
When the integration is fully implemented, our App will be slightly updated. While transferring tokens between new blockchains that came along with the ChangeNOW integration, users will see an updated interface. The same UI will be applied while transferring tokens from new networks to the old ones.

A Broader Selection of Supported Tokens
Along with 70+ new blockchains, ChangeNOW enriches the Rubic App with over 150 new tokens for On-Chain and Cross-Chain swaps. This integration mostly adds native tokens for the upcoming blockchains. Therefore, it will be possible for you to swap $DOGE, $ADA , $HEDERA, $XRP, $NEO, $LUNA, $APT, $DOT , $ALGO, $OSMO, $ATOM , $XTZ, or other native tokens in one seamless move, directly at Rubic.
No Extra Fees
The fees vary depending on the currency and the exchange amount. For every swap, ChangeNOW finds the fastest and most user-profitable way to execute an exchange. The final amount users receive is as close to the estimate as possible. That’s why ChangeNOW calculates all the possible fees for every transaction very thoroughly and includes them in the estimate.

ChangeNOW: A Fast, Secure, & Easy-to-Use Crypto Exchange
ChangeNOW has a broad ecosystem of products, which unites wallets, payments, nodes, and other crypto-related services. Yet, the key element of the ChangeNOW ecosystem is its exchange service.
Let’s explore the comprehensive tools and services which ChangeNOW provides to enhance the experience of crypto traders.
ChangeNOW supports more than 800 cryptocurrencies and 50,000 trading pairs. You get access to the most exotic pairs on the market.ChangeNOW offers anonymous crypto trading. The swaps are completely secure, as they do not ask you for private keys or any type of registration and do not have control over your crypto.Blazing fast exchange speeds — an average swap takes 2–5 minutes or less.There are no hidden charges — All fees are already included in the estimated rate.Minimum purchase amounts are $2 or less, with no upper limits.
#DeFiChallenge #trading #cryptocurrency

2022 was a challenging year for crypto, but amidst all the events of the past year, #DeFi projects not only held on tight, but gained more strength and trust from crypto traders. Meanwhile, #CeFi unexpectedly got a reputation as an unreliable and risky area, as we remember the Celsius crypto meltdown, FTX, Three Arrows Capital, and Voyager Digital. The crisis of trust in CeFi became a stimulus for DeFi. What are the next steps for DeFi projects? Can DEXs replace CEXs eventually? How can #Cross-Chain DEXs help Web3 DeFi development?
Discover the power of cross-chain DeFi in this article!

Let’s Talk Numbers
DeFi’s TVL is nearly $48 billion at the time of writing, according to DefiLlama. This is a sharp drop from the year’s outset, where it stood at $166.7 billion. Yes, DeFi lost 76% of TVL in dollar terms in 2022, but still, decentralized exchanges executed $854 billion in trading volume in 2022, and this came from 5,687,713 unique trading addresses. Data from Dune Analytics shows that the total number of DeFi users has steadily increased throughout 2022.

DeFi’s growth shows no sign of slowing down. Despite market conditions, unique DeFi users have risen by 40% in 2022: from 4.7 million at the start of 2022, to almost 6 million, while the number of unique DeFi users has increased by nearly 600% over a two-year period, with just 940,000 users at the start of 2021.
Obviously, DeFi is already the choice for most crypto traders. In fact, as we see in the case of DEXs vs. CEXs, decentralized #cryptocurrency protocols have at times overtaken centralized services in on-chain transaction volume.

So, no wonder new DEXs keep appearing on the market. There are hundreds of DEX Protocols (665, according to DeFiLlama), and the main question is: Why do only a few of them have Cross-Chain interoperability when there’re already 164 chains?
Cross-Chain Interoperability as a Must-Have for DeFi 2.0
Among all the commonly known reasons, such as anonymity and security, another reason trading volume has shifted from centralized exchanges to DEXs could be the latter’s greater number of assets on offer. It leads to another step in DEX Protocols’ development — allowing these assets to be transferred between different blockchains. There are several evident advantages for users when a DEX goes Cross-Chain:
They can use their digital assets freely, and transfer tokens across different blockchains in a seamless and frictionless manner.They can decentralize their assets across different blockchains to minimize risk.
When the possibility of transferring tokens between different blockchains opens up for users, it leads to more advantages for the DEX itself:
Easier user onboardingAdditional volume and fees from cross-chain tradingDiversification on different chainsCross-industry collaboration
Thus, it makes sense to make #dApps Cross-Chain, as it’s already a must-have. Gaining cross-chain interoperability is an inevitable requirement if your project wants to be an indispensable part of Web3.
What is the difference between Multi-Chain and Cross-Chain?
To figure out the difference between Multi-Chain and Cross-Chain Protocols, let us compare two top DEX market players: SushiSwap and Uniswap.
Uniswap is based on several blockchains (Ethereum, Polygon, Optimism, Arbitrum, Celo) and is considered to be a Multi-Chain Solution, as its liquidity is spread across chains. Basically, these are copies of Uniswap on different blockchains.
SushiSwap’s Cross-Chain architecture allows assets to flow between unrelated blockchains, with the help of smart contracts.

Let us sum up the pros and cons of Multi-Chain and Cross-Chain solutions:

So is there an easy way to make a DEX Cross-Chain?
Rubic Cross-Chain Tools: A Gateway to Blockchain Interoperability for DEXs
You can have a look at different cross-chain solutions which exist on the market right now in one of our latest articles: Rubic: A Cross-Chain Tech Aggregator for the Interoperable Future of Web3.
It may sound blatant, but Rubic Cross-Chain Tools are amongst the most convenient ways to go Cross-Chain for dApps. This is not only because Rubic is an aggregator of over 90+ bridges and DEXs, but also because of the quality and convenience of our Widget and SDK, which has already been battle-tested by over 130 crypto projects.
We provide an easy-to-install Widget for those who want to start their Cross-Chain journey right away, and an exquisite SDK for platforms who instead want a customized Cross-Chain solution adapted to their interface.
Now, it’s time to dive into the details of each tool and how it can help DEXs to go Cross-Chain.
Let’s recall what the general advantages are of getting Cross-Chain interoperability for a DEX. As we’ve said before, along with building connections between blockchains, when DEXs support Cross-Chain interoperability, it can receive easier user onboarding and extra trading volume + revenue.
However, our solutions offer even more features to our integrators:
Fast One-Click Cross-Chain Swaps
Due to the aggregation of over 90+ DEXs and bridges, over 15,500 tokens are available across 26 blockchains in one click, directly on your platform. The average transaction takes around 90 seconds.
Ever-Lasting Liquidity
Even if your own DEX runs out of liquidity, due to the aggregation of DEXs and bridges within our app, Rubic will always provide you with liquid assets.
Smart Routing: The Best Swap Deal
With Rubic’s Cross-Chain Tools, you get the best deals across 90+ DEXs & bridges integrated into Rubic.exchange. Aggregation allows the algorithm to find the best deal on the market for cross-chain and on-chain swaps. The algorithm used at Rubic splits and manages transactions as needed, to save on gas and fees as much as possible. Quick and effective pathfinding was built based on the architecture uniting and matching real-time data. Thus, the best DEX, bridge, transaction time, gas fee, and other parameters are chosen.
Free & Easy Integration
You can turn your business into a cross-chain ecosystem hassle-free by integrating Rubic’s Widget via our user-friendly configurator, in just 10 minutes. Alternatively, you can spend more time integrating Rubic’s SDK, implementing a fully customized solution. Rubic’s team is going to assist you before, during, and after integration.
Full UI/UX Customization
As a white-label solution, Rubic’s SDK can be easily implemented into your project’s environment by letting you write your own logic in the code regarding how users will go through each step when making a swap, giving you full control over your UI. You can fully customize Rubic’s SDK to your platform so that no one will ever notice it’s an integration.
Rubic’s Widget, with its minimalistic and classic design, will be a great fit for any project’s existing interface. The UX is clear and friendly to the extent that any crypto novice will understand how to make a cross-chain or on-chain swap.
Enhanced Security
Rubic’s Cross-Chain Tools continue operating even if a bridge gets hacked, routing transactions through other bridges.
Rubic’s Widget and SDK are streamlined on all levels, in terms of caching and security: transactions are auto-monitored, and the auto-refund function is fully set up. Rubic’s technical support is also, of course, ready to assist you 24/7.
Revenue & Customizable Fees
Up to 50% of the fees coming from trades via Rubic’s SDK/Widget go straight to your business. Besides the fees taken by Rubic, you may choose preferable additional trading fees that will be charged by your platform via Rubic’s Widget/SDK.
Trading Volume Boost
With Rubic’s SDK, users will be able to buy the desired tokens right on your website, regardless of the blockchain they use. They won’t need to go to a bridge or any other external providers to swap assets at an unfavorable rate — they simply go to your website and make the best deal in one place. Thus, you will retain users and increase your trading volume.
Useful tip: If your DEX is already Multi-Chain, you can implement Rubic’s Cross-Chain solution, integrating only your own DEX for Cross-Chain Swaps, limiting the integration of other DEXs supported by our tools. In this case, you won’t share trading volume with other DEXs!
Over 130 projects have already become Cross-Chain with Rubic’s tools. For now, we will discuss one DEX in particular.
Kishu Inu: Going Cross-Chain with Rubic Tools
Rubic Tools helped Kishu Inu revamp the already existing Kishu Swap Protocol, turning it into Kishu Swap X — an all-in-one cross-chain trading platform, where users can simply swap tokens from one chain to another, in just a few clicks. How did Kishu Inu manage to boost their DEX using Rubic tools, and what did it mean for Kishu Inu users?
What is Kishu Swap X?
Kishu Inu implemented Rubic’s SDK into their platform in December 2022. Currently, it’s known as Kishu Swap X.
Kishu Swap X is the official DEX of the Kishu Inu community. Kishu Swap X offers users an all-in-one solution for a smoother trading experience:
One-click swaps between 15,500+ tokensCross-Chain swapping between 22+ different blockchains in one transactionSwapping at the best possible rates, using optimal routing and bridging systems, which automatically check for the most efficient methods to conduct the transaction
Kishu Inu DEX is supported by its native $KISHU token, which you can always get on Kishu Swap X (check our article about Rubic tools for tokenholders).
Kishu Inu has customized their UI and UX to the fullest. If you take a peek at what Kishu Inu DEX’s trading interface looks like, you will not see any connection to Rubic’s design: Rubic’s SDK UI entirely fits the platform’s native design and concept.

With simple architecture, Rubic’s SDK allows customizing the UX as well. What path can users take on Kishu Inu?
The user chooses a “From” token.

2. Next, the user chooses a token that they want to purchase. For user convenience, $KISHU is a default “To” token, but you can change it to other assets as well.
3. Then, the number of tokens needs to be typed in. The algorithm will automatically show the final amount in other tokens that the user will receive.

4. The user clicks “Swap” and approves the transaction on MetaMask.
5. The swap is done!
Rubic’s SDK allows for massive customization of a project’s UX. In fact, projects can build the UX on their website with Rubic’s SDK however they wish.
Kishu Inu about the integration of Rubic’s SDK:
“Driven by our fundamental values, current market conditions, and recent events — we are proud to announce that in collaboration with Rubic and their masterminds behind the technology, we have revamped one of our oldest products, our Kishu Swap.
The fully new Kishu Swap X is our way of saying — we are here for the community’s convenience, safety, and pleasure in participating in the crypto space — and that is exactly our future goal.”
You can read more about Kishu Inu Swap X here.
Boost your DEX by going Cross-Chain right now!
At Rubic, it is our goal to assist other projects in opening new horizons in the cross-chain Web3 era. Our technologies are not limited just to DEXs, and can be applied to a launchpad, Web3 game, wallet, and more.
Rubic’s SDK is a way to interact with more than 90 DEXs and bridges while performing on-chain and cross-chain swaps in the most user-friendly and secure way. Blockchain technology is on the verge of becoming interoperable and omnichain, and we, Rubicans, want to make sure the world gets to experience them!
Rubic Cross-Chain Tools are built on the basis of Rubic’s Cross-Chain frontend, and all the details on integration can be found in Rubic’s documentation.

#Gaming is very often viewed as the key to mass adoption of blockchain tech, and the driving force of the GameFi sector is in-game tokens and NFTs. It is no secret that GameFi is generating serious buzz throughout the cryptocurrency world, but there are certain limitations that currently slow down GameFi development, such as a poor in-game experience, economy, and lack of in-game asset composability. One of the biggest shortcomings of the GameFi sector is the lack of interoperability between blockchains. How can Rubic’s #Cross-Chain Tools solve these issues for GameFi projects? Let’s find out!

GameFi Sector as Part of Web3
Let’s explore why Web3 gaming is considered a key area of focus for Web3 development.

Source: Hypermint
The trend of the GameFi market tends to follow that of the crypto market in general, with it declining from $23.2B to $4.3B, down 81.5% year-to-date. In November 2021, GameFi’s market cap reached its peak of $26.6B before its drop. During the first two months of 2022, the market continued to decline, but StepN came along and changed everything, turning the market around and driving the market cap of GameFi to an all-time high. However, StepN’s boom didn’t last long.

Source: Gamefi 2022 Review & 2023 Outlook By BitMetis&BitMart
Because of the market downturn, the price of almost every GameFi token experienced a sharp decrease. However, the number of active users became more stable. The boom in active user numbers was triggered by the hype of Axie Infinity during the middle of 2021, which was the beginning of GameFi’s bull market. It reached its peak on January 6, 2022, with over 1.1M daily active users.

Source: Gamefi 2022 Review & 2023 Outlook By BitMetis&BitMart
After that peak, there were two more rounds of the boom in the number of active users.
Moreover, Gaming projects received 16% of blockchain industry investments, more than any other kind. Total investment in gaming increased by 84% from

Source: Gamefi 2022 Review & 2023 Outlook By BitMetis&BitMart
2021 to 2022. As of 2022, 717 new blockchain games have been launched. Undoubtedly, the Web3 Gaming ecosystem is expanding and growing.
Then why are GameFi profits decreasing?
#GameFi had its initial glory until the third and fourth quarters of 2021. Although people still invest in GameFi, profits are decreasing steadily, along with the bear market.
According to State of Crypto’s survey, 89% of crypto investors worldwide saw their GameFi profits decrease in the last six months. 62% of respondents lost more than 50% of their profits from GameFi.
This drastic drop also comes from poor game economy design. As a result, players lose interest, and the game’s performance declines, resulting in heavy losses for investors.
To grow further, GameFi has to provide its users with a seamless in-game experience. Graphics, plot, UX/UI, speed of interaction, assets, and transactions still need to be improved, especially when compared to traditional gaming. Whether or not a GameFi project operates smoothly depends on its chain’s processing speed. If that speed is slower, then the user’s experience will be negatively affected, and players will be disappointed, impatient, and lose motivation to continue playing.
The presence of GameFi dApps on several blockchains (Multi-chain solutions) seemed to solve these problems.
Most of the obstacles to blockchain game expansion come from the fact that they are built on a single blockchain, with trading tools and transaction fee structures that are more suited to financial transactions rather than games.
Being multi-chain, a game solves such problems as slow transaction speeds and expensive gas fees, since it provides users with valuable flexibility. This feature allows them to experience a game in any chain where it is available, at their own convenience.
More remarkably, every time a new chain is connected, it brings in a community of new users. This can help to improve the stagnation of blockchain games when it comes to the situation where new players can’t be drawn in, and old players are already over-exposed in terms of further investments.
However, while creating a #Multi-Chain ecosystem, GameFi came to face another issue.
What we see right now is a fragmented landscape of games, based on dozens of competing, non-interoperable blockchains. In this multi-chain Web3 GameFi environment, a cross-chain solution is necessary to support blockchain interoperability. Though there are 3 major chains in Web3 gaming — BNB Chain, Ethereum, and Polygon — they still lack interoperability. There is still no comprehensive solution to transfer tokens across chains within any one game’s ecosystem.
Cross-chain interoperability is needed across multi-chain games. Interoperability also lowers the barrier of entry into any game space, whether it is multi-chain or not.
For instance, when someone begins playing Axie Infinity, they are required to purchase three Axies before starting to play. To buy AXS, a newcomer has to leave the game platform and go to a CEX or DEX to purchase assets at an unfavorable rate. Imagine if gamers could buy AXS in a one-click action directly within the game interface — it would remove that barrier of entry for many gamers.
GameFi: From Multi-Chain to Cross-Chain
Let us explain how Rubic’s Cross-Chain Tools can be a ready-to-use solution to connect multiple blockchains within any GameFi project. We’ll use an average Web3 game based on several networks as an example.
Usually, Multi-Chain games have several Game Interfaces built on various blockchains. All Interfaces have their own unique flavors and different opportunities for players.
The Rubic #Cross-Chain Tools solution can allow players to easily onboard and transfer tokens from the chain of their choice into the game. Let’s explore the problem we’re dealing with here in more detail.
Unfortunately, no major exchanges currently offer in-game assets.
For now, the easiest solution to get in-game tokens includes several steps:
A player has to do his/her own research to find exchanges where the desired token is listed.
Different platforms have different levels of security, reliability, and liquidity. It requires a lot of comparing and analysis to choose the one exchange with the most cost-efficient rates.
2. The player has to find supported pairs. The second currency is what users can utilize to purchase game tokens.
3. Then if the player doesn’t have the cryptocurrency required to purchase in-game tokens, he/she has to obtain it.
The purchase of in-game crypto with a fiat currency like USD is generally easier than with another crypto. But if the user decides to purchase in-game tokens with different crypto, he’ll need to buy the first currency and use it to buy game tokens on the exchange he chooses.
As we see it, the current solution lacks interoperability between blockchains and wastes users’ time. Players cannot easily purchase in-game assets from any network they prefer.
In a situation like this, integrating Rubic’s Cross-Chain Tools would give users the ability to purchase in-game tokens with thousands of assets on 26 networks, or with fiat currency via our Fiat On-ramp solution, directly on their website or within their game.
Rubic’s Cross-Chain Tools. SDK and Widget to the Rescue!
Rubic provides easily-integrated solutions to simplify the transformation from a multi-chain game to a blockchain-interoperable Web3 GameFi ecosystem. There are a few main reasons for a GameFi project to become blockchain-interoperable:
Wider Audience
Rubic’s Cross-Chain Tools open up a GameFi project to new audiences, allowing users to enter any gamespace seamlessly and without additional actions, regardless of what blockchain their funds are located on.
2. More User Opportunities and Usability
With the Rubic SDK or Widget, GameFi projects will give players more opportunities to purchase their in-game assets, allowing them to purchase tokens with 15,500+ assets from 60+ blockchains.
Gamers won’t need to go to a CEX or any other external provider to purchase assets at their high rates — they will simply go to the game’s website or the game itself and make the best deal right there. Thus, GameFi projects will attract more users and multiply their trading volume.
3. Easier Onboarding
Rubic’s Cross-Chain Tools ensure that newcomers will have an easier entry into the Game Space.
The Rubic Widget, along with cross-chain swaps between 26 networks, provides newcomers to crypto, and GameFi in particular, with a simple-to-use tool for transferring their Fiat to Crypto. A built-in Fiat On-ramp solution is ideal for those who are curious about Web3 gaming, but don’t yet know how to get started.
The process of transferring Fiat to in-game tokens is made simple with the Rubic Widget. It enhances a user’s experience within any Game Space and invites newcomers to enter the game effortlessly.

The first stage in building interoperability is to provide a built-in solution for cross-chain swaps. Battle-tested by the market, Rubic’s SDK and Widget lead the pack in several ways:
A huge number of tokens and DEXs are supported. 15,500+ tokens on 60+ blockchains for swapping (out of 20,200 tokens circulating in the crypto market) utilizing 60+ aggregated DEXs that provide the best transaction routes and ample liquidity.Best UX/UI as a one-click experience. Сross-chain swaps have a complicated route — Swap -> Bridge/DEX -> Swap — which Rubic packs into a one-click transaction.Best rates & trade times. On Rubic, the average transaction time takes around 90 seconds. The algorithm used at Rubic optimizes transactions to save on gas and fees, thus finding the best deal on the market in the most efficient time.Security & liquidity. Due to the aggregation of DEXs, providers, and bridges, users are guaranteed ample liquidity when making a purchase. No user’s funds have ever been kept on Rubic’s platform; every transaction is performed by sending calls to Rubic’s providers’ smart contracts. An additional note, Rubic’s technical support is available 24/7.Adjustable fees. Up to 50% of the fees coming from trades via Rubic’s SDK/widget go straight to our integrators. Besides the fees taken by Rubic, projects can choose preferable additional trading fees that will be charged by the platform via Rubic’s widget/SDK.
You can explore our articles devoted to Rubic Cross-Chain Tools to better understand the integration process and the key benefits of integrating our solution.
Rubic: A Cross-Chain Tech Aggregator for the Interoperable Future of Web3DEX Omnichain Future: Rubic Tools as a Way to Go Cross-ChainHow to Drive Your Token Sales on Your Website
There are multiple options for a GameFi project to go Cross-Chain with Rubic: integrate our Widget into their website, implement our SDK directly into their game, or both.
Rubic Widget
Integrating the Rubic Widget will take just a few clicks. To make our technology easy to integrate, Rubic created a Widget Configurator. This feature allows developers to:
Customize the dark/light mode theme and choose a background color, so developers can match it with the look of the game interface.Input UI translations to match their customer’s preferred language.Set up an initial/destination token and blockchain, then choose the default amount of tokens to swap.
With Rubic’s NFT Widget, web3 games will be able to provide their users with the option of buying in-game NFTs right on their website, using any of the 15,500+ supported tokens from 60+ blockchains, including the most popular networks among NFT users, such as Ethereum, BNB and Polygon.
The Rubic Widget, with its minimalistic and classic design, will be a great fit for any project’s existing interface. The process of integration is simple and usually takes no more than 10 minutes to integrate.
The Rubic Widget has been integrated by numerous GameFI projects such as Kryptomon and Kompete.
Rubic SDK
SDK integrations may take more time, but it’s definitely worth it! Developers can make it fit perfectly into their game’s art style, as the Rubic’s SDK gives developers full control over the UI design. The Rubic SDK is also a fully whitelabel solution. This enables developers to hide the fact that their in-game cross-chain solution comes from an external provider.
As a white-label solution, Rubic’s SDK can be easily integrated into a game’s UI, by letting developers write their own logic in the code on how users will go through each step when making a swap. The UX is clear and friendly to the extent that any crypto novice will understand how to make a cross-chain or on-chain swap.
Rubic NFT Widget
While Rubic’s Cross-Chain Tools for fungible tokens are already known as a cutting-edge solution for Cross-Chain swaps in terms of its UX, the Rubic NFT Widget is a new feature that aims to make it easy to acquire gaming NFTs. So far, Rubic has been able to implement this feature in Beta.
The most popular use cases for NFTs today are gaming (by volume of transactions) and art (by value of transactions). With the rise of in-game NFTs, users face the need for convenient tools to purchase them.
To purchase NFTs from multiple blockchains, users need blockchain bridges. However, cross-chain bridges lead to excessive time spent and high transaction fees. To make cross-chain NFT swaps time-saving and cost-effective, Rubic has come up with the idea of a cross-chain NFT Widget.
This widget is a simple and ready-to-use NFT Cross-Chain Trading tool, which provides platforms and users with a seamless and cost-efficient way to purchase an NFT, using funds on any chain.
An easy-to-install Widget enables users to purchase NFTs with more than 15,500 tokens across the current 60+ blockchains integrated into Rubic. The NFT Widget is extremely useful for both GameFi projects and gamers alike.
It enables the GameFi sector to:
Implement cross-chain NFT purchases directly on their games’ website, using any of 15,500+ supported tokens from 60+ blockchain networks.
It enables users to:
Purchase Multiple NFTs in one batch, as a single transaction, saving on gas fees. Pay using any of the 15,500+ supported tokens from 60+ blockchain networks.
The Rubic NFT Widget is a user-friendly and incredibly convenient solution for purchasing NFTs, that helps to improve the user experience and reduce the cost of purchases and the barrier of entry.
Going Forward
As GameFi continues to evolve, Rubic’s Cross-Chain Tools also continues to improve and aggregate new types of Cross-Chain solutions. We envision the Rubic SDK as the ultimate all-in-one cross-chain solution for any dApps, especially GameFi, which will be key for the mass adoption of crypto.
As we have announced in our Roadmap, in 2023 our new SDK will aggregate the best web3 cross-chain tech — from signals and oracles, to tokens and NFT bridges, in ready-made templates for DEXs, Lending/Farms, and more.
With the continued development of Rubic’s Cross-Chain Tools, it will become easier to create a united and interoperable Metaverse. This will enable seamless cross-chain transfers of NFTs and other in-game assets between different games. Users will be able to transfer their achievements, levels and status, and game experience through Cross-Chain Signals. As an example, oracles can help to quote data about the average market price of particular assets. The benefits this brings to metaverses and blockchain games are numerous and varied. This is all unlocked with the power of Rubic’s ability to provide cross-chain interoperability for all dApps.
Let’s make GameFi interoperable!

Ethereum Network’s unbeatable leadership in security and decentralization is proven by its over 50% market dominance by TVL. However, its universal popularity often leads to network congestion and overload during periods of high demand, causing high transaction fees and slow transaction times. That’s where Layer 2 comes into play for Ethereum scaling. Why is the process of scaling so important? Which Layer 2 solutions exist on Rubic and how does it interact with L2 Networks? What are the plans for future development and cooperation? Discover the answers below by reading our article!

Layer 2 Explained
Even though Ethereum has transitioned to a Proof-of-Stake consensus algorithm — which is more energy efficient & provides better scalability — slow transaction times and high fees still remain unresolved.
To address these issues, the Ethereum community has been exploring and implementing Layer 2 scaling solutions. Some of the most common Layer 2 solutions for Ethereum are State Channels, Sidechains, Plasma, Validium, and our main topic for today, Rollups!
Rollup is a technology that bundles multiple transactions into a single transaction, reducing the computational burden on the Ethereum blockchain. There are two types of rollups: Optimistic Rollups, which rely on users to dispute invalid transactions, and ZK-rollups, which use zero-knowledge proofs to verify transactions.
Optimistic Rollups assume transactions are valid by default and only run the computation, via a fraud proof, in the event of a challenge. Read more on Optimistic rollups at the Ethereum website. Optimistic Rollup Examples: Arbitrum, Boba, Optimism, Fuel, Layer2.Finance, and Metis (until the recent update).
Zero-Knowledge Rollups: Run computation off-chain and submit a validity proof to the chain. Explore Zero-Knowledge Rollups here. ZK-Rollups Examples: Loopring, ZKSync, ZKSpace, Aztec, etc.
Before deep-diving into the technical details of the above-mentioned rollups, let’s see how they perform in the market and why Rubic is perfect to swap to Layer 2s with!
Ethereum L2 Market Performance
Despite the fact that these solutions are pretty new to the market (2 years old and less), they’re already outperforming Ethereum by certain metrics.
According to L2beat, the total L2 TVL is worth $5.7B, while Ethereum’s is estimated at $27B (DeFiLlama). However, since August, the total value locked in the Layer 2 ecosystem has been declining. This is most likely due to falling crypto asset prices rather than capital being drawn out of various networks.
Layer 2 activity is ramping up and has surpassed Layer 1 Ethereum in transactions per second. Although this does not imply overall activity on those networks, Delphi Digital, a crypto research firm, on December 21, 2022 reported the ‘Flippening’: over 152 million transactions were processed by both layers of Ethereum, and 58% of them occurred on Layer 2. The chart below shows that the flip occurred in late September, but that it has remained above Ethereum TPS ever since. L2 activity and TPS peaked at 25 TPS in late October.

L2beat has launched a new activity tracker for the ecosystem. It currently reports that the average Ethereum base layer TPS is 11.94, while the L2 TPS is 23.98. Activity on Arbitrum and Optimism alone is close to flipping Ethereum L1’s daily TPS.

February 2023 gave us another milestone in L2 development, according to L2beat, Arbitrum One made history as the first rollup to surpass Ethereum mainnet in daily transaction volume!​​

Rubic x Layer 2s
The Rubic Protocol supports the most popular Ethereum Layer 2 Rollups to date, including Arbitrum, Boba, Optimism, and Metis. The latter ‌has recently announced its transition to a first-of-its-kind Ethereum Hybrid Rollup: Metis is building the first-ever Hybrid Rollup by combining Optimistic rollup architecture with Zero-knowledge proofs. We have further plans to expand to ZK-rollups such as zkSync, Polygon Hermez, etc.
We can also see a tendency for the significant growth of L2s, and at Rubic.exchange, as they already constitute 12% of our total transaction volume. Although it’s mainly Arbitrum and Optimism, we will be working with Boba and Metis to grow their transaction volumes on Rubic as well.

Why is Rubic perfect in working with L2s?
Rubic.exchange offers more than 15,500 tokens for Cross-Chain Swaps across ‌Layer 2 networks and other 35+ networks, including such popular non-EVM chains like Bitcoin, Tron, Ripple, Solana, etc., with the best rates, highest liquidity, and transaction speeds — all in one click — thanks to Rubic’s aggregation of 90+ DEXs and bridges.
Another advantage of using Rubic for cross-chain interaction with L2 networks is the additional bonuses and airdrops you get.
Rubic aims to accelerate Ethereum scaling and contribute to Layer 2 development. That’s why we maintain strong partnerships with L2 Rollups and develop mutual activities to engage users. Rubic cooperates with L2 networks to provide promotions and airdrops for our community. For example, in March, Rubic is holding a promotion with Boba Network. Take part in a $45,000 reward pool by swapping to the Boba network via Symbiosis!
Using Rubic is an awesome experience, not only because it’s convenient, but also because users become eligible for joint airdrops by holding $RBC.
Let’s dive into the technical details of the different types of rollups.
Optimistic Rollups vs ZK-Rollups
So, how does Ethereum Layer 2 scaling solve the limitations of the Ethereum network’s current capacity? Layer 2 scaling solutions aim to alleviate high transaction fees and slow transaction times by moving transactions off the Ethereum chain and processing them in a more efficient and cost-effective manner. By doing so, Layer 2 solutions can increase transaction throughput and reduce fees, while still maintaining the security and trustlessness of the Ethereum network.
Rollups move the computation and validation of transactions off the Ethereum chain, but they are then settled on the Ethereum mainnet in either a single transaction or a batch of transactions.
Optimistic rollups are the most popular L2 technology today because they started earlier, but ZK rollups have already begun to enter the market.
According to L2beat, 85% of L2 TVL is divided between Arbitrum and Optimism Networks.

L2 rollups are competing hard against each other to bring transaction fees down.

Let’s compare Optimistic and ZK-Rollups:

In summary, ZK-rollups use Zero-Knowledge Proofs to validate transactions off the Ethereum chain, while optimistic rollups do that through a set of validators and assume transaction validity until proven otherwise. While both solutions aim to increase transaction throughput and reduce fees, they have different trade-offs in terms of computational expense and trust requirements.
Let’s more closely explore the optimistic rollups first.
Optimistic Rollups Solution
Although contracts managing the optimistic rollup protocol run on Ethereum, the rollup protocol performs computation and state storage on another virtual machine separate from the Ethereum Virtual Machine.
Advantages of optimistic rollups include:
Massive improvements in scalability, without sacrificing security or trustlessness.Transaction data is stored on the Layer 1 Ethereum chain, ensuring transparency, security, censorship-resistance, and decentralization.Fraud-proofing guarantees trustless finality and allows honest minorities to secure the chain.Computing fraud proofs is open to a regular L2 node, unlike validity proofs (used in ZK-rollups) that require special hardware.Rollups benefit from “trustless liveness” (anyone can force the chain to advance by executing transactions and posting assertions).Optimistic rollups rely on well-designed cryptoeconomic incentives to increase security on the chain.Compatibility with EVM and Solidity allows developers to port Ethereum-native smart contracts to rollups or use existing tooling to create new dApps.
ZK-Rollups Explanation
ZK-rollups work by processing a large number of transactions off the Ethereum chain and then aggregating them into a single transaction that is validated on the main chain. This reduces the computational load on the main chain and increases its throughput, allowing for faster and cheaper transactions.
The key innovation of ZK-rollups is the use of zero-knowledge proofs to verify the validity of transactions. Simply put, zero-knowledge rollups is a technology that allows one party to prove to another party that they know a piece of information without revealing the information itself. In the context of ZK-rollups, this means that transactions can be validated without revealing any sensitive information, such as the amounts being transacted or the identities of the parties involved.
ZK-rollups offer a promising solution to the scalability problem faced by blockchain networks while also providing enhanced privacy, security, and interoperability. As the adoption of blockchain technology continues to grow, it is likely that more Layer 2 scaling solutions like ZK-rollups will be developed, allowing for even more efficient and cost-effective transactions on the blockchain.
How do ZK-rollups work?
The process of using ZK-rollups involves the following steps:
1. Users submit their transactions to a smart contract on the L2 network.
2. The smart contract aggregates these transactions into a single transaction and generates proof of their validity using zero-knowledge proofs.
3. The proof is then submitted to the main chain, where it is validated by the main chain’s consensus mechanism.
4. Once the proof is validated, the L2 smart contract executes the aggregated transaction and updates the state of the L2 network.
5. Users can then withdraw their funds from the L2 network back to the main chain, if they choose to do so.
ZK-rollups offer a promising solution to the scalability problem faced by blockchain networks, while also providing enhanced privacy, security, and interoperability. As the adoption of blockchain technology continues to grow, it is likely that more Layer 2 scaling solutions like ZK-rollups will be developed, allowing for even more efficient and cost-effective transactions on the blockchain.
At Rubic, we believe in the bright future of Ethereum Level 2s, and will work hard on further integrations and partnerships!

Summary: The integration of #non-EVM networks into the #DeFi ecosystem faces challenges, due to differences in protocols, languages, and governance models. This limits their interoperability with EVM networks and overall scalability, adoption, ecosystem development, and developer familiarity. However, some non-EVM networks offer certain advantages when it comes to speed, cost-effectiveness, customizability, and innovation.
Rubic.exchange is a solution that enables seamless communication and data transfer between #EVM and non-EVM networks through the aggregation of #DEX and bridges from various networks. Rubic’s cross-chain tools, a widget and SDK enable integrators with ready-made solutions for bridging the gap between EVM and non-EVM networks, promoting greater adoption and usability in the blockchain space.

The foundation of the blockchain revolution can be traced back to Bitcoin’s launch in 2009, inspiring the creation of diverse chains like Litecoin, Ethereum, Ripple, and more. However, as blockchain networks multiplied, integration challenges arose due to differences in protocols, consensus mechanisms, languages, and governance mzsodels. The EVM addressed some of these challenges, introducing smart contracts and enabling various dApps. Since then, EVM dominates the DeFi space, and non-EVM networks face issues with integration into it.
There are certain interoperability challenges between EVM and non-EVM networks, and there’s a pressing need for solutions that enable seamless communication and data transfer between these diverse blockchain platforms. One of these solutions is Rubic. Let’s dive in and explore why!
The Integration Challenge for Non-EVM Networks.
As the DeFi sector gained traction, EVM became the de facto standard due to its robust smart contract capabilities and a vast array of applications built on Ethereum. Consequently, most DeFi protocols and platforms were designed with EVM compatibility in mind. This resulted in non-EVM networks, such as Litecoin, Cardano, Ton, and others, facing hurdles when attempting to be integrated within the DeFi ecosystem beyond just their token presence. So, let’s delve further into these challenges and explore the factors preventing the scalability of non-EVM networks in DeFi.
Non-EVM networks operate independently from Ethereum, adhering to their own rules, languages, smart contracts, and wallet formats. While this diversification fosters a more robust crypto ecosystem and encourages innovation, it presents a hindrance when they try to cooperate. Each non-EVM network may have its own specific challenges, but here are some common challenges that can be associated with such networks:
Adoption and Network Effects
One of the significant challenges for any blockchain network is achieving widespread adoption. The dominance of the Ethereum ecosystem and its EVM-based smart contracts has created a strong network effect, making it difficult for alternative platforms to attract developers, users, and projects.
EVM compatibility can drive easier traffic acquisition and ecosystem expansion because Ethereum users can quickly migrate to new chains without creating a new address and wallet. The same logic applies to dApp developers: one can fork existing, popular DeFi open-source protocols or integrate SDKs, for example.
Ecosystem and Tooling Limitations
Established EVM-based networks like Ethereum have a mature ecosystem with various DeFi applications, wallet integrations, DEXs, and other infrastructure components. This creates a propitious environment, where users can swap assets on almost any DEX, across different chains in any direction and with no KYC.
Non-EVM networks might lack a similar level of ecosystem development, making it challenging to build a robust and vibrant network with supporting services. They are mostly present on CEXs, which offer a complicated KYC process and represent a custodial solution.
Interoperability
Interoperability is crucial for the growth and integration of different blockchain networks. Many existing decentralized applications and protocols are built on Ethereum and depend on its standards and infrastructure, it’s not easy for them to go multichain on non-EVMs. They can only do so with bridges/a cross-chain aggregator built-in SDK (like Rubic’s).
Non-EVM networks also often lack cross-chain solutions and are limited in the number of supporting bridges to enable communication and data sharing between different blockchain platforms.
Developer Learning Curve, Familiarity, and Tooling
Ethereum’s EVM has been around for a considerable time, resulting in a vast developer community and a rich set of tools, libraries, and frameworks. Non-EVM networks may face challenges in providing a similar level of developer support, documentation, and tooling, making it less accessible for developers to build applications on those networks.
Moving from Ethereum’s EVM-based development to a different network can involve a learning curve for developers. They need to understand new programming languages, development frameworks, and architectural differences. This transition can slow down the ‌adoption of non-EVM networks, as developers might prefer to stick with what they are already familiar with.
Domination of EVM Chains in the Crypto Market
Apps built on EVM networks leverage specialized tools and rules that facilitate seamless interaction. Although sending assets between EVM projects is also prone to challenges, it is comparatively easier than bridging the gap between EVM and non-EVM chains. Consequently, the crypto market faces fragmentation, with EVM networks dominating TVL (total value locked) and exhibiting significant interoperability, while non-EVM networks remain confined to their isolated domains. The challenge lies in finding a way to unify both ecosystems for enhanced efficiency.
According to ‌data from DefiLlama, ‌EVM-compatible chains hugely surpass non-EVM networks in TVL and a number of protocols (as of May 2023):

The data is relevant for June 9th, 2023
As mentioned above, developers often want EVM compatibility to replicate and deploy to new chains quickly, and the disadvantage of non-EVM compatible chains is obvious in terms of the number of projects.
Non-EVM Chains Give Projects Room for Innovation
However, EVM possesses numerous shortcomings. These are design problems like a lack of inspection and traceability of its programming language, Solidity, expensive and slow calls to external smart contracts, and illegible on-chain code that plagues projects and makes them unsafe today. These flaws directly stem from the rigidity of EVM and the austerity of its bytecode. This austerity means there is a limit to the features and functions that can be built through it, and this limit negatively affects the speed, interoperability, and safety with which projects can be built.
For now, it is evident that non-EVM chains have more room for innovation because the limitations of Ethereum do not constrain them. They can implement many different features to provide services for specific users, and stand out from the crowd of dApps. The presence of non-EVM chains such as Solana makes the fight between EVM and non-EVM worth watching. For example, projects like Raydium and Serum are unique to Solana.
Given the speed and low fees of non-EVM networks, they also have the potential to become a thriving DeFi ecosystem. The growing number of dApps deployed on non-EVM chains supports this idea.

The data is relevant for June 9th, 2023. Source: dAppRadar
Overall, non-EVM networks offer several advantages that pave the way for innovation:
Scalability
Non-EVM platforms often offer improved scalability compared to the Ethereum network, which has faced challenges with network congestion and high gas fees. These alternatives can handle a higher transaction throughput, making them more suitable for applications with a large user base.
Speed
Non-EVM platforms generally provide faster transaction confirmation times due to their optimized consensus mechanisms and network architecture. This enables real-time interactions and enhances the user experience for applications, requiring instant responsiveness.
Cost-effectiveness
By avoiding the congestion and high gas fees associated with the Ethereum network, non-EVM platforms offer a more cost-effective environment for developers and users. Lower fees and efficient resource allocation can make dApps more accessible and financially sustainable.
Customizability
Non-EVM platforms often provide greater flexibility and customizability for developers. They offer a range of programming languages and frameworks beyond Solidity, the primary language used for Ethereum smart contracts. This allows developers to leverage their existing skills and choose the tools that best suit their needs.
Innovation and Experimentation
The non-EVM ecosystem is a hub for innovation and experimentation in the blockchain space. These platforms often introduce novel concepts, consensus mechanisms, and features that push the boundaries of what is possible in DeFi. Developers can explore new ideas and create unique solutions for various industries.
EVM to Non-EVM: Exploring Interoperability Challenges
Achieving interoperability between EVM and non-EVM networks has been a persistent challenge in the blockchain industry.
Many decentralized exchanges primarily support EVM-based tokens and have limited support for tokens from non-EVM networks. This restricts liquidity and trading options for non-EVM tokens, as traders must rely on centralized exchanges or specialised bridges.
Furthermore, even if users manage to find a DEX that supports non-EVM networks, the challenges still persist. The integration of non-EVM networks can introduce complexities for users, such as the need to switch wallets or learn new interfaces and processes. This friction in user experience may deter broader adoption and hinder the seamless interaction of non-EVM networks with DeFi applications.
Rubic Exchange: Exploring Potential Solutions
However, there are various dApps that make it easy for crypto users to send assets from an EVM chain to a non-EVM chain, with about the same ease that they can send assets from an EVM chain to an EVM chain:

Rubic exchange aggregates more than 90+ DEXs and bridges and 60+ networks, including over 30 non-EVM networks, such as Bitcoin, Litecoin, Ripple, Solana, Near, Osmosis, Ton, Waves, etc., enabling users to perform cross-chain swaps between EVM and non-EVM networks using a single interface.
Traditionally, to perform cross-chain swaps between EVM and non-EVM networks, users had to rely on individual bridges or CEXs, which often introduced additional complexities and risks. Rubic.exchange simplifies this process and serves as a bridge and a DEX at the same time, which enhances convenience and reduces friction.
Interoperability between EVM and non-EVM networks has been a longstanding challenge in the blockchain space. However, with the emergence of innovative solutions like Rubic.exchange, the gap is gradually being bridged. By streamlining asset transfers and providing a comprehensive platform for cross-chain swaps, Rubic and similar projects contribute to the development of interoperability, empowering users to explore the vast potential of non-EVM networks. As the blockchain ecosystem continues to evolve, these solutions will play a crucial role in shaping the future of decentralized finance and cross-chain interactions.

Expanding Interoperability: Leveraging Rubic’s Cross-Chain Tools
Rubic’s commitment to scaling and promoting interoperability in non-EVM chains is exemplified through our cross-chain tools. With the availability of Rubic’s SDK and Widget, a wide range of DeFi projects can seamlessly integrate the same feature toolkit and cross-chain solutions showcased on the Rubic App. This integration empowers various platforms to extend interoperability opportunities between EVM and non-EVM networks, enabling their users to benefit from a comprehensive and readily available solution.
Through Rubic’s cross-chain tools, integrators provide users with a ready-made solution for bridging the gap between EVM and non-EVM networks. This approach eliminates the complexities associated with developing custom interoperability solutions from scratch, saving time and resources. By using Rubic’s solutions, these integrators can offer their users a seamless and efficient cross-chain experience, promoting greater adoption and usability in the blockchain space.

Our vision is that Rubic’s new umbrella SDK will aggregate the best Web3 cross-chain tech — from signals and oracles, to tokens and NFT bridges, in ready-made templates for DEXs, Lending/Farms, and more. This will help developers easily make their Web3 dApps cross-chain, regardless of what their function is.
#DeFiChallenge

DEX trading is often associated with risks, ranging from non-reversible payments to MEV bots attacks. As the crypto community strives to make digital assets more ubiquitous, innovative solutions are emerging to ensure the safety of users’ funds.
Rubic is proud to announce a progressive step in this direction — the integration of the Private RPC feature. Read on to discover how this advancement enhances security and protects your funds.
Understanding MEV Bot Attacks
Before delving into the benefits of Private RPC, it’s crucial to understand the threat posed by MEV bots. A detailed exploration of MEV bots and their potential impact on users can be found in our previous article, “Demystifying MEV Bots: Your Guide to Self-Protection.”
In summary, MEV bots exploit opportunities to maximize profits by manipulating transaction orders, engaging in activities such as front-running high-value transactions, back-running existing transactions, and executing sandwich attacks. These activities can lead to worse rates and increased transaction fees, resulting in financial losses for the user.
Private RPC as a Solution
Remote Procedure Call (RPC) is a request-response communication protocol used to initiate processes on remote systems, such as local systems or servers in blockchain networks. With Private RPC, your transactions on Rubic will no longer be publicly visible in the mempool, safeguarding you from bots and MEV searchers.
Benefits of Private RPC:
Front-Running Prevention and Enhanced Trading RatesSecuring Transactions with Unparalleled SpeedConfidentiality of TransactionsReduced Attack Surface
bloXRoute Integration: Fortifying Fund Security with MEV Protect Engine
Rubic’s integration of the Private RPC feature marks a significant step towards fortifying the security of users’ funds and ensuring better rates. With measures in place to prevent front-running, enhance transaction rates, and prioritize user privacy, Rubic continues to contribute to the advancement of a safer and more secure crypto ecosystem.
Solution Details
MEV Protect Engine by bloXroute, the latest addition to Rubic’s arsenal, aims to improve the DeFi ecosystem on Ethereum, BNB Smart Chain and Polygon by introducing the Frontrunning Prevention feature to professional and retail traders in scale and benefit the contributors in the process.
bloXroute connects you directly with validator nodes to securely hand off your transactions to protect you from frontrunning.
Important to note, that it works only for swaps on and from Ethereum, BNB Smart Chain & Polygon.
This is how it works:
1. Private Transaction Submission:
Users submit private transactions on Rubic.
2. bloXroute Processing in BDN:
bloXroute, within its Blockchain Distribution Network (BDN), processes private transactions.
3. Direct Routing:
Private transactions are routed directly to specific destinations:Ethereum: Sent to the partner block builder.BSC: Sent to bloXroute’s block builder.Polygon: A just-in-time delivery mechanism is used to reduce the chance of frontrunning.
4. Avoiding Public Mempool (For Ethereum and BNB Chain):
Private transactions are not propagated to the public mempool.This mitigates the risk of frontrunning and sandwich attacks.
In essence, bloXroute processes private transactions, routes them to designated destinations, labels them as private, and ensures they are not exposed to the public mempool, enhancing security against frontrunning and sandwich attacks.
User-Centric Approach
At Rubic, we prioritize simplicity and user-friendliness in every aspect of our platform. To ensure a seamless experience, we have introduced an effortless switch on process for Private RPC.
When you engage in a swap exceeding $1,000, our platform takes a proactive approach to safeguard your funds. A specially designed window will automatically appear, presenting you with the option to activate Private RPC for enhanced fund protection.

Activating Private RPC is as easy as flipping a switch. No complex procedures or unnecessary steps — just a straightforward, user-friendly experience. Refer to the screenshot below for a visual guide.

Please note: If you enable the MEV Bot Protection feature on Rubic, it’s crucial to add new chains with Private RPC and implement transactions through them. Ensure that the new Private RPC Chains are configured as follows:
Ethereum:
RPC Endpoint: https://rubic-eth.rpc.blxrbdn.com
2. Binance Smart Chain (BSC):
RPC Endpoint: https://rubic-bnb.rpc.blxrbdn.com
3. Polygon:
RPC Endpoint: https://rubic-polygon.rpc.blxrbdn.com

User Benefits:
Enhanced Security Measures: Activate Private RPC to fortify the security of your funds, especially for high-value swaps.User-Friendly Controls: A simple switch is all it takes to enable this advanced security feature, ensuring a hassle-free experience for every user.Transparent Security Options: The special window provides clear and transparent options, empowering you to make informed decisions about your fund protection preferences.
Rubic is committed to provide the best user experience, and MEV-bot protections is another significant step in building this. We want you to feel confident while swapping by automating the process for big amounts’ swaps and easily activating the feature in our app’s UI. Your security is our priority, and with Private RPC, we ensure that protecting your funds is both intuitive and effective.

Blockchain technology has revolutionized the way we think about finance, applications, and digital assets. However, the journey to a secure and efficient blockchain ecosystem goes through trials and testing.
Testnets serve as the sandbox where developers experiment, fine-tune, and ensure the security of their creations before they hit the mainnet. Early testers usually get benefits from blockchains, and user interest towards them is growing.
In this article, we dive into Rubic.exchange’s commitment to providing an extensive range of testnets, opening up new opportunities for developers and users alike.
Why Testnets Exist
In the world of blockchain, testnets play a pivotal role. They are like digital laboratories where developers can test their projects without risking real assets. Testnets enable developers to:
Experiment with new features and upgrades.Test the functionality of smart contracts.Identify and fix bugs and vulnerabilities.Collaborate and refine their projects in a safe environment.
Benefits of Testnets for Crypto Users
One integral aspect of this technological revolution is the use of testnets, which not only serve as vital tools for developers, but also offer a range of benefits for crypto users.
1. Early Access to New Ecosystems:
Testnets provide crypto users with early access to upcoming blockchain ecosystems. This means you can explore and engage with new technologies before they reach the mainstream.Being among the first to navigate these ecosystems gives you a competitive edge, and positions you as an early adopter.
2. Hands-on Learning:
Testnets are ideal platforms for learning and gaining hands-on experience in the blockchain space without risking real assets.Users can experiment with various features, transaction processes, and interactions within the blockchain environment.
3. Potential for Airdrops and Rewards:
A noteworthy trend in the blockchain world is the reward system for early users who actively participate in testnets. One example is the Mantle Journey initiative.
Mantle Journey aims to reward early adopters of the Mantle network, and one of the eligibility criteria is past testnet contributions. This means that interacting with test networks on Rubic can potentially unlock opportunities for airdrops and other rewards in new blockchain ecosystems.

Rubic’s Commitment to Testnet Integrations
At Rubic, we are committed to enhancing the interoperability across blockchains for users and developers. As testnets get more and more popular amongst users as a fruitful activity, it is important to offer this opportunity on Rubic, so that Rubic can grow together with new audiences the testnets can bring.
As of now, Rubic.exchange proudly hosts four testnets, each with its unique features and projects:
Goerli Testnet: Designed for Ethereum-based projects, the Goerli Testnet faithfully replicates the Ethereum mainnet environment. It provides developers with a seamless and secure space to test their dApps and smart contracts, ensuring they function flawlessly before deployment.Scroll Testnet: Scroll Sepolia Testnet boasts seamless integration with Ethereum applications and tools, offering native compatibility that empowers developers and users alike.Arthera Testnet: Arthera’s blockchain is a DAG-based blockchain that is fully EVM-compatible. Its implementation started from Go-Ethereum, the Go implementation of the Ethereum protocol, but with a different consensus engine and operating model, aimed at high transaction volumes, fast confirmation times, and low gas fees.ZetaChain Testnet: An EVM-compatible L1 blockchain that connects everything. On ZetaChain you can build interoperable dApps that span any chain, including Bitcoin.
The journey doesn’t stop here. Rubic.exchange has ambitious plans for the future, with more testnet integrations in the pipeline. Some potential integrations include: Taiko, Astar zkEVM, Obscuro, Concordium, Omni Network, Layer N, Intmax, Ancient, Flare Network, and etc. These additions will enable users and developers to explore new ecosystems and test their projects across various blockchain platforms.
Advantages of Using Rubic’s Testnet Feature
Rubic.exchange’s testnet feature provides several benefits:
User-Friendly Interface: Easy access to testnets, even for those who are new to the blockchain.Robust Testing Environment: Developers can confidently test their projects, knowing they won’t affect real-world assets.Resourceful Tools: Rubic.exchange provides resources, such as links to faucets and explorers, to facilitate testing.
How to Access the Rubic Testnet App
Getting started with Rubic.exchange’s testnet feature is easy:
Launch Rubic’s app.

Navigate to the “Testnet” section.

Select the desired testnet from the available options.

Follow the provided instructions to get started.
We are currently strategizing the integration of additional test networks, such as Taiko and other testnets, with the goal of expanding our test chain offerings to a total of 19 in the near future.
By providing accessible and secure testing environments, Rubic.exchange empowers blockchain enthusiasts to bring their visions to life without unnecessary risk. As we look to the future, the integration of more testnets promises exciting opportunities for innovation and experimentation. Explore Rubic.exchange’s testnet feature today and be part of the blockchain revolution!
Visit Rubic and explore the available testnets. Developers, test your projects on Rubic.exchange’s testnet feature to ensure a smooth transition to the mainnet.
Rubic’s Test Network B2B Integration Services
While Rubic.exchange primarily offers a diverse range of testnets for crypto users and developers, it also extends its services to blockchain projects looking to integrate their test networks. If your network is on the brink of launching and you have an open grant program, a working bridge (especially if it is one of our cross-chain providers) or DEX on your test network, Rubic offers an exciting opportunity for collaboration.
1. Seamless Integration:
Rubic’s integration services provide a seamless pathway for blockchain projects to introduce their test networks to a broader audience.Our experienced team ensures a smooth integration process, making it easier for your project to reach new users and testers.
2. Access to a Growing Community:
By integrating your test network with Rubic.exchange, you gain access to our ever-growing community of crypto enthusiasts, developers, and users.This exposure can be instrumental in attracting new users and building a vibrant ecosystem around your blockchain project.
3. User Testing and Feedback:
Rubic’s users can explore and test newly integrated testnets. This means that your project will benefit from a pool of dedicated crypto users providing valuable feedback.User feedback is essential for identifying and addressing any issues or improvements needed before a mainnet launch.
4. Mutual Promotion:
Collaboration with Rubic.exchange also includes mutual promotion opportunities. We’ll feature your test network on our platform, making it easily accessible to our user base.Additionally, we can explore joint marketing efforts to enhance the visibility of your project within the crypto community.
5. Bridging Networks:
If your blockchain project involves cross-chain functionality or requires bridge testing, Rubic’s integration services are a valuable resource.We specialize in integrating and testing bridge solutions, ensuring they function flawlessly and securely.
6. Supporting Partnerships:
At Rubic, we are committed to fostering collaboration within the blockchain space. We can introduce you to the vast network of our partners, and pave the way for growth.
To sum up, Rubic’s Test Network Integration Services offer blockchain projects a unique opportunity to showcase their test networks to a broader audience, attract potential users and testers, and receive valuable feedback. Our collaborative approach not only benefits your project, but also contributes to the overall advancement of blockchain technology. Together, we can drive blockchain innovation forward.