grafbase

Why we included this project

Grafbase is a GraphQL federation gateway written in Rust that sits in front of multiple subgraph services and exposes them through one endpoint, which matters once a single monolithic API stops cutting it and you want a high-throughput router over a distributed graph. The interesting part for AI work is its native Model Context Protocol support: a few lines of configuration turn the gateway into an MCP server, so agents can introspect the schema, search relevant types, and run queries under the same auth rules as ordinary GraphQL traffic. That removes the need to stand up a separate MCP server and wire it to your data layer by hand, and it works with agent-driven exploration in tools like Cursor and VS Code. The honest caveat is that The Guild acquired the project and Grafbase is now in maintenance mode, with archival planned for mid-2026; newcomers should read it as a working example of combining GraphQL with MCP rather than something to build on. If you need a router to adopt today, The Guild points to Hive Router and Hive Gateway as the maintained replacements.