Based on the repository name and Cloudflare Workers deployment, this appears to be a bridge that exposes REST APIs through GraphQL queries via MCP. The repo itself is essentially empty beyond configuration files, so the actual implementation details aren't visible. The concept is straightforward: you'd use this when you want Claude to interact with REST endpoints but prefer the structured query approach of GraphQL. It's deployed on Cloudflare Workers at api.lazy-mac.com, which suggests it's meant to be a hosted service rather than something you run locally. Without seeing the source code or documentation, it's hard to say which REST APIs it bridges to or what specific operations are available through the GraphQL interface.
claude mcp add --transport http io.github.lazymac2x-graphql-rest-bridge https://api.lazy-mac.com/graphql-rest-bridge/mcp