MCP server

The Inbox MCP server gives AI tools direct access to the full REST API — threads, messages, prospects, tags, and more.

Authentication

The MCP server uses the same API token as the REST API. Pass it in the Authorization header.

Need an API token? See Authentication.

Server URL

https://mcp.inboxapp.com/mcp

Client setup

Claude Desktop

Add to your config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "inbox": {
      "url": "https://mcp.inboxapp.com/mcp",
      "headers": {
        "Authorization": "Bearer <INBOX_API_TOKEN>"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json in your project root:

.cursor/mcp.json

{
  "mcpServers": {
    "inbox": {
      "url": "https://mcp.inboxapp.com/mcp",
      "headers": {
        "Authorization": "Bearer <INBOX_API_TOKEN>"
      }
    }
  }
}

Replace <INBOX_API_TOKEN> with your API token.

Getting started

Fundamentals

Configuration

Authentication

Server URL

Client setup

Claude Desktop

Cursor

​Authentication

​Server URL

​Client setup

​Claude Desktop

​Cursor

Authentication

Server URL

Client setup

Claude Desktop

Cursor