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Basecamp 3 MCP Integration for Cursor

Connect Basecamp 3 to Cursor through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

7 functions 6 read 1 write Manual OAuth token auth
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Connect Basecamp 3 to Cursor

Expose selected local integrations to Cursor through KosmoKrator without configuring each service as its own MCP server.

Create or update .cursor/mcp.json with a KosmoKrator stdio server entry. The gateway is local, scoped to this integration, and starts with --write=deny so Cursor can inspect read-capable tools without receiving write access by default.

Basecamp 3 MCP Config for Cursor

Use the same KosmoKrator install and integration credentials that power terminal and headless runs.

{
  "mcpServers": {
    "kosmokrator-basecamp": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=basecamp",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=basecamp --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Basecamp 3 instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Basecamp 3 Tools Visible to Cursor

Cursor sees stable MCP tool names generated from the Basecamp 3 integration catalog.

MCP toolSource functionTypeDescription
integration__basecamp__basecamp_list_projects basecamp.basecamp_list_projects Read List all Basecamp projects visible to the authenticated user. Returns project names, IDs, descriptions, and creation dates.
integration__basecamp__basecamp_get_project basecamp.basecamp_get_project Read Get details for a single Basecamp project by ID. Returns the project name, description, members, and metadata.
integration__basecamp__basecamp_list_todos basecamp.basecamp_list_todos Read List to-dos in a Basecamp to-do list. Requires the project ID, to-do set ID, and to-do list ID. Returns to-do items with their content, completion status, assignees, and due dates.
integration__basecamp__basecamp_create_todo basecamp.basecamp_create_todo Write Create a new to-do in a Basecamp to-do list. Specify the project, to-do set, to-do list, and to-do text. Optionally include a description, due date, and assignee IDs.
integration__basecamp__basecamp_list_messages basecamp.basecamp_list_messages Read List messages (message board posts) for a Basecamp project. Returns message subjects, content excerpts, authors, and timestamps.
integration__basecamp__basecamp_get_message basecamp.basecamp_get_message Read Get a single message from a Basecamp project by ID. Returns the full message subject, content, author, and metadata.
integration__basecamp__basecamp_get_current_user basecamp.basecamp_get_current_user Read Get the profile of the currently authenticated Basecamp user. Returns name, email, avatar, and account details.

Related Basecamp 3 Pages

Basecamp 3 CLIUse direct JSON commands instead of MCP discovery. Basecamp 3 MCPFull gateway reference and MCP tool names. KosmoKrator for CursorClient-level gateway setup.