MCP Servers

graphql-mcp

Exposes any GraphQL API as a single tool for executing queries and mutations with authentication support.

README

graphql-mcp

MCP server that exposes any GraphQL API as a single graphql tool. Works with Claude Code, Cursor, and any MCP client.

Setup

uv sync

Configuration

All configuration is via environment variables:

Variable	Required	Description
`GRAPHQL_API_URL`	Yes	The GraphQL endpoint URL
`GRAPHQL_API_KEY`	Yes	API key or token for authentication
`GRAPHQL_AUTH_HEADER`	No	Header name for auth (default: `Authorization`)
`GRAPHQL_TIMEOUT`	No	Request timeout in seconds (default: `30`)

Usage with Claude Code

claude --mcp-config mcp.json

Where mcp.json contains:

{
  "mcpServers": {
    "graphql": {
      "command": "uv",
      "args": ["run", "--directory", "/path/to/graphql-mcp", "python", "main.py"],
      "env": {
        "GRAPHQL_API_URL": "https://api.example.com/graphql",
        "GRAPHQL_API_KEY": "your-api-key"
      }
    }
  }
}

Tool

`graphql`

Execute any GraphQL query or mutation.

Parameters:

query (string, required) — A GraphQL query or mutation document
variables (object, optional) — GraphQL variables

Examples:

# Query
query { viewer { id name email } }

# Mutation with variables
mutation($id: String!, $body: String!) {
  commentCreate(input: { issueId: $id, body: $body }) {
    success
  }
}

# Introspection
query { __type(name: "Mutation") { fields { name } } }

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