Neo X is officially supported in @graphprotocol subgraph Studio!

Neo X developers will benefit from The Graph's expertise in blockchain data indexing and querying, offering efficient data access to create high-performance dApps for the Neo ecosystem.

https://medium.com/neo-smart-economy/the-graph-integrates-neo-x-to-provide-top-notch-indexing-for-developers-c558c9b497bf