Twenty MCP Server

An MCP server for integrating with Twenty CRM, providing access to Twenty's REST API through categorized tools. The available tools map the entire Twenty REST API and were automatically generated using the openapi-mcp-generator.

Installation

Clone the repository and build: npm install && npm run build

Usage Instructions

The server includes usage instructions in src/instructions/instructions.md containing best practices discovered through experimentation (e.g., workflow requirements, formatting conventions, search tips). These can be customized for your specific use case by editing the file and rebuilding with npm run build.

Tool Filtering

This MCP server supports both category-based and individual tool filtering, allowing you to selectively enable only the tools you need. This approach significantly reduces context window usage and improves performance.

Available Categories

Available Tools

All available tools can be found in the Twenty REST API schema at https://your-twenty-instance.com/rest under the operationId field. You can either:

• Download the OpenAPI specification from your Twenty instance, or

• Browse tool definitions directly in this repository under the /src/tools/ directory

Usage

MCP Client Configuration

When configuring this server in an MCP client (like Claude Desktop), you can use category and/or specific tool arguments to control which tools are available.

Using Categories

Filter tools by predefined categories:

{
  "mcpServers": {
    "twenty": {
      "command": "node",
      "args": [
        "/path/to/twenty-mcp-server/build/index.js",
        "--category=crm,tasks,notes"
      ],
      "env": {
        "TWENTY_BASE_URL": "https://your-twenty-instance.com/rest",
        "TWENTY_API_KEY": "your-api-key"
      }
    }
  }
}

Using Specific Tools

Select individual tools by their names:

{
  "mcpServers": {
    "twenty": {
      "command": "node",
      "args": [
        "/path/to/twenty-mcp-server/build/index.js",
        "--tools=findManyCompanies, createOneCompany, findOneCompany, UpdateOneCompany, findManyPeople, createOnePerson, findOnePerson, UpdateOnePerson,findOneNote, findManyNotes, createOneNote, createManyNotes, UpdateOneNote, createOneNoteTarget, createManyNoteTargets, findManyOpportunities, createOneOpportunity, findOneOpportunity, UpdateOneOpportunity"
      ],
      "env": {
        "TWENTY_BASE_URL": "https://your-twenty-instance.com/rest",
        "TWENTY_API_KEY": "your-api-key"
      }
    }
  }
}

Combining Categories and Specific Tools

Use both approaches together:

{
  "mcpServers": {
    "twenty": {
      "command": "node",
      "args": [
        "/path/to/twenty-mcp-server/build/index.js",
        "--category=crm,tasks",
        "--tools=findManyAttachments,createOneAttachment"
      ],
      "env": {
        "TWENTY_BASE_URL": "https://your-twenty-instance.com/rest",
        "TWENTY_API_KEY": "your-api-key"
      }
    }
  }
}

Default Behavior