About Graphql
Graphql is an MCP server that lets AI assistants interact with GraphQL APIs. It provides query execution and schema introspection, with configurable request details and optional mutation permission.
Key features
- 01Execute GraphQL queries
- 02Pass variables, headers, and endpoint
- 03Inspect GraphQL schemas
- 04Optionally allow mutations
Use cases
- 01Query data from a GraphQL API
- 02Explore available schema types and fields
MCP support
It exposes query execution and schema introspection as tools for MCP clients.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
Tools
2Saved tool list · updated 2w ago
| Parameter | Type | Required | Description |
|---|---|---|---|
| endpoint | string | No | GraphQL endpoint URL (can be omitted to use default) |
| query | string | Yes | GraphQL query to execute |
| variables | object | No | Variables to use with the query (JSON object) |
| headers | object | No | Additional headers to include in the request (will be merged with default headers) |
| timeout | number | No | Request timeout in milliseconds |
Details
From the project READMEGraphQL MCP Tools
A Model Context Protocol (MCP) server implementation that provides GraphQL API interaction capabilities. This server enables AI assistants to interact with GraphQL APIs through a set of standardized tools.
Components
Tools
-
graphql_query
- Execute GraphQL queries against any endpoint
- Input:
query(string): The GraphQL query to executevariables(object, optional): Variables for the queryendpoint(string, optional): GraphQL endpoint URLheaders(object, optional): HTTP headers for the requesttimeout(number, optional): Request timeout in millisecondsallowMutations(boolean, optional): Whether to allow mutation operations
-
graphql_introspect
- Retrieve and explore GraphQL schema information
- Input:
endpoint(string, optional): GraphQL endpoint URLheaders(object, optional): HTTP headers for the requestincludeDeprecated(boolean, optional): Whether to include deprecated types/fields
Usage with Claude Desktop
NPX
{
"mcpServers": {
"graphql": {
"command": "npx",
"args": [
"-y",
"mcp-graphql-tools",
"--endpoint=https://api.github.com/graphql",
"--headers={\"Authorization\":\"Bearer YOUR_GITHUB_TOKEN\"}",
"--timeout=30000",
"--maxComplexity=100"
]
}
}
}
Configuration Options
The server accepts the following command-line arguments:
- --endpoint (-e): Default GraphQL endpoint URL (default: http://localhost:4000/graphql)
- --headers (-H): Default headers for all requests as JSON string
- --timeout (-t): Default request timeout in milliseconds (default: 30000)
- --maxComplexity (-m): Maximum allowed query complexity (default: 100)
License
This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.