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MCP Graphql Schema logo

MCP Graphql Schema

hannesj/mcp-graphql-schema

A Model Context Protocol (MCP) server that exposes GraphQL schema information to Large Language Models (LLMs) like Claude. This server allows an LLM to explore and understand GraphQL schemas through a set of specialized tools.

View on GitHub17

Install

npx -y mcp-graphql-schema /ABSOLUTE/PATH/TO/schema.graphqls

Client configuration

{
  "mcpServers": {
    "GraphQL Schema": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-graphql-schema",
        "/ABSOLUTE/PATH/TO/schema.graphqls"
      ]
    }
  }
}
GitHub stars
17
Author
@hannesj
Category
Developer Tools, AI Chatbot
Updated
Oct 6, 2026

Features

  • Load any GraphQL schema file specified via command line argument

  • Explore query, mutation, and subscription fields

  • Look up detailed type definitions

  • Search for types and fields using pattern matching

  • Get simplified field information including types and arguments

  • Filter out internal GraphQL types for cleaner results

Tools (10)

  • list-query-fields

    Lists all available root-level fields for GraphQL queries

  • get-query-field

    Gets detailed definition for a specific query field in SDL format

  • list-mutation-fields

    Lists all available root-level fields for GraphQL mutations

  • get-mutation-field

    Gets detailed definition for a specific mutation field in SDL format

  • list-subscription-fields

    Lists all available root-level fields for GraphQL subscriptions (if present in schema)

  • get-subscription-field

    Gets detailed definition for a specific subscription field (if present in schema)

  • list-types

    Lists all types defined in the GraphQL schema (excluding internal types)

  • get-type

    Gets detailed definition for a specific GraphQL type in SDL format

  • get-type-fields

    Gets a simplified list of fields with their types for a specific GraphQL object type

  • search-schema

    Searches for types or fields in the schema by name pattern (case-insensitive regex)

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
Claude Desktop logo

Claude Desktop

Desktop · Freemium · Proprietary

Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

WindowsMacOS

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