Graphql Schema Stitcher

---
name: "GraphQL Schema Stitcher"
slug: "graphql-schema-stitcher"
description: "Merges multiple GraphQL schemas into a unified federated gateway using Apollo Federation v2 and graphql-tools stitchSchemas. Validates composed schemas with rover graph check."
github_stars: 20324
verification: "security_reviewed"
source: "https://github.com/graphql/graphql-js"
category: "Library & API Reference"
framework: "MCP"
tool_ecosystem:
  github_repo: "graphql/graphql-js"
  github_stars: 20324
  npm_package: "graphql"
  npm_weekly_downloads: 34200861
---

# GraphQL Schema Stitcher

Merges multiple GraphQL schemas into a unified federated gateway using Apollo Federation v2 and graphql-tools stitchSchemas. Validates composed schemas with rover graph check.

## Installation

Use the upstream install or setup path that matches your environment:
- npm install --save graphql
- yarn add graphql
- npm install graphql@git://github.com/graphql/graphql-js.git#npm

Requirements and caveats from upstream:
- GraphQL.js is a general-purpose library and can be used both in a Node server
- with both CommonJS (require()) and ESModule (import) files. Ensure that any

Basic usage or getting-started notes:
- A general overview of GraphQL is available in the
- [README](https://github.com/graphql/graphql-spec/blob/main/README.md) for the
- [Specification for GraphQL](https://github.com/graphql/graphql-spec). That overview

- Source: https://github.com/graphql/graphql-js
- Extracted from upstream docs: https://raw.githubusercontent.com/graphql/graphql-js/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/graphql-schema-stitcher/)