GraphQL Tools - GraphQL Schema Documentation
GraphQL Tools is a modular toolkit from The Guild for building, merging, stitching, transforming, and mocking GraphQL schemas. It is a library — not a hosted API — distributed as a set of npm packages under the `@graphql-tools/` scope. This SDL document captures the key types, interfaces, input types, and enumerations that make up the public API surface of the library.
Overview
GraphQL Tools - GraphQL Schema Documentation is a GraphQL API specification published by The Guild on the APIs.io network.
GraphQL Tools is a modular toolkit from The Guild for building, merging, stitching, transforming, and mocking GraphQL schemas. It is a library — not a hosted API — distributed as a set of npm packages under the @graphql-tools/ scope. This SDL document captures the key types, interfaces, input types, and enumerations that make up the public API surface of the library.
Tagged areas include API Composition, API Gateway, API Observability, Breaking Change Detection, and CI/CD.
Endpoint
Related API Specs
Work with this as data
Every GraphQL schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for graphql
4 MCP tools reach this
find_graphqlBrowse and filter every GraphQL schema in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/graphql/graphql-tools-graphql"curl "https://apis.io/api/v1/graphql?limit=25"Discovery needs no key. Ratings and market analysis are Pro.