GraphQL Schema

by hannesj

12 stars

170 downloads

Not rated

GitHub

About

Enables AI models to explore and understand GraphQL schemas through specialized tools for querying operations, looking up type definitions, pattern matching, and retrieving simplified field information.

Details

Author: hannesj
Repository: hannesj/mcp-graphql-schema
GitHub stars: 12
Downloads: 170
License: MIT License
Categories: Developer Tools, Design, File Management, AI, Search, API, Knowledge Base, Infrastructure, Frontend

- 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

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below
Plugin Name GraphQL Schema

Command (node, npx, python, etc.) npx
Arguments
- Argument 1 -y
- Argument 2 mcp-graphql-schema
- Argument 3 /ABSOLUTE/PATH/TO/schema.graphqls
Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "$$env:AppData\\Claude",
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": true,
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "$$env:AppData\\Claude",
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": true,
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "$$env:AppData\\Claude",
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": true,
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "$$env:AppData\\Claude",
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": true,
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "$$env:AppData\\Claude",
            "env": {},
            "args": [
                "/c",
                "npx",
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": true,
            "command": "cmd"
        }
    }
}

JSON

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

From the repository

To install GraphQL Schema for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @hannesj/mcp-graphql-schema --client claude

claude mcp list

`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).

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "graphql schema": {
            "cwd": "~/Library/Application Support/Claude",
            "env": {},
            "args": [
                "-y",
                "mcp-graphql-schema",
                "/ABSOLUTE/PATH/TO/schema.graphqls"
            ],
            "shell": false,
            "command": "npx"
        }
    }
}

Linux

{
    "cwd": "~/Library/Application Support/Claude",
    "env": [],
    "args": [
        "-y",
        "mcp-graphql-schema",
        "/ABSOLUTE/PATH/TO/schema.graphqls"
    ],
    "shell": false,
    "command": "npx"
}

Macos

{
    "cwd": "~/Library/Application Support/Claude",
    "env": [],
    "args": [
        "-y",
        "mcp-graphql-schema",
        "/ABSOLUTE/PATH/TO/schema.graphqls"
    ],
    "shell": false,
    "command": "npx"
}

Windows

{
    "cwd": "$$env:AppData\\Claude",
    "env": [],
    "args": [
        "/c",
        "npx",
        "-y",
        "mcp-graphql-schema",
        "/ABSOLUTE/PATH/TO/schema.graphqls"
    ],
    "shell": true,
    "command": "cmd"
}

GraphQL Schema Model Context Protocol Server

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.

Run the MCP server with a specific schema file:

# Use the default schema.graphqls in current directory npx -y mcp-graphql-schema # Use a specific schema file (relative path) npx -y mcp-graphql-schema ../schema.shopify.2025-01.graphqls # Use a specific schema file (absolute path) npx -y mcp-graphql-schema /absolute/path/to/schema.graphqls # Show help npx -y mcp-graphql-schema --help

To install GraphQL Schema for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @hannesj/mcp-graphql-schema --client claude

To use this MCP server with Claude Desktop, edit yourclaude_desktop_config.jsonconfiguration file:

{ "mcpServers": { "GraphQL Schema": { "command": "npx", "args": ["-y", "mcp-graphql-schema", "/ABSOLUTE/PATH/TO/schema.graphqls"] } } }

- macOS/Linux:~/Library/Application Support/Claude/claude_desktop_config.json
- Windows:$env:AppData\Claude\claude_desktop_config.json

To use this MCP server with Claude Code CLI, follow these steps:
-

Add the GraphQL Schema MCP server to Claude Code

# Basic syntax claude mcp add graphql-schema npx -y mcp-graphql-schema # Example with specific schema claude mcp add shopify-graphql-schema npx -y mcp-graphql-schema ~/Projects/work/schema.shopify.2025-01.graphqls

# List all configured servers claude mcp list # Get details for your GraphQL schema server claude mcp get graphql-schema

Once configured, you can invoke the tool in your Claude Code session by asking questions about the GraphQL schema.

- Use the-sor--scopeflag withproject(default) orglobalto specify where the configuration is stored
- Add multiple MCP servers for different schemas with different names (e.g., main API schema, Shopify schema)

The server provides the following tools for LLMs to interact with GraphQL schemas:

- 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)

What query fields are available in this GraphQL schema? Show me the details of the "user" query field. What mutation operations can I perform in this schema? List all types defined in this schema. Show me the definition of the "Product" type. List all fields of the "Order" type. Search for types and fields related to "customer".

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About

Details

Jump to

Setting up with Highlight

From the repository

list-query-fields

get-query-field

list-mutation-fields

get-mutation-field

list-subscription-fields

get-subscription-field

list-types

get-type

get-type-fields

search-schema

Claude Desktop / Cursor

Linux

Macos

Windows

GraphQL Schema Model Context Protocol Server

Install

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`list-query-fields`

`get-query-field`

`list-mutation-fields`

`get-mutation-field`

`list-subscription-fields`

`get-subscription-field`

`list-types`

`get-type`

`get-type-fields`

`search-schema`