Claude Desktop

Connect the Claude Desktop app to the active workspace by adding Twelfth as an
MCP server. The connection is read-only.
Reach it from Settings → AI & agents → Claude Desktop.

Connect

  1. In Twelfth, open Settings → AI & agents and choose Connect an agent → Claude Desktop. Twelfth creates a key for this connection, copies it to your clipboard, and starts waiting for Claude Desktop’s first request. Copy the key now if you need it again — Twelfth shows it only once.
  2. In Claude Desktop’s MCP settings, add a server pointing at the Twelfth endpoint shown on the connection’s row, with the key Twelfth just copied for you.
  3. Restart Claude Desktop, then ask it to list Twelfth’s tools to confirm the connection.

Follow the exact steps on the connection’s row in Twelfth — it carries the current
the
current endpoint and the ready-to-paste MCP server entry for your workspace.