Set up Merrymen in Claude

The quickest way: tell Claude “set up merrymen mcp”. Or add it yourself in one click.

The button opens Claude's Add custom connector dialog with Merrymen filled in. Click Continue, then Connect, then Allow on the Merrymen page that opens. Add it once: it then works in claude.ai, Claude Desktop and Claude mobile, and in Claude Code when it is signed in with the same claude.ai account. Then ask Claude “Why hasn't my agent traded?”

This connects to hosted Merrymen (app.merrymen.dev). You sign in to Merrymen in your own browser and choose what to allow; there is no API key, token or password to paste anywhere. On a Team or Enterprise plan, an organisation owner adds it once for everyone.

Telling Claude to do it

In Claude Code, Claude can run the setup command for you. The last step is yours: type /mcp, choose the Merrymen entry, choose Authenticate and click Allow.
In claude.ai, Claude Desktop or Claude mobile, Claude can't add a connector from a chat, so it gives you the same link as the button above.

Claude looks the steps up on the web. If it can't find them, give it https://merrymen.dev/llms.txt.

Claude Code

Already added Merrymen on claude.ai? Claude Code signed in with the same claude.ai account has it too. claude mcp list shows it (as merrymen, plugin:merrymen:merrymen or claude.ai Merrymen) at https://mcp.merrymen.dev/mcp when it is set up. An entry named merrymen at any other address is an old one: remove it with claude mcp remove merrymen -s user. Otherwise, in a terminal:

claude mcp add --transport http --scope user merrymen https://mcp.merrymen.dev/mcp

Then, in Claude Code, type /mcp, choose merrymen, choose Authenticate, sign in to Merrymen if asked, and click Allow. If it isn't listed yet, restart Claude Code (claude --continue keeps the conversation).

Or the plugin, for slash commands

The Merrymen plugin includes the server and adds /merrymen:status, /merrymen:why, /merrymen:portfolio and more. Install it instead of the command above: choose one route, not both.

claude plugin marketplace add https://github.com/millw14/merrymen.git
claude plugin install merrymen@merrymen

Then type /reload-plugins and sign in from /mcp: choose plugin:merrymen:merrymen, choose Authenticate and click Allow.

Other assistants

Codex, Cursor, VS Code, Kiro, LM Studio, Goose, Gemini CLI, Windsurf and ChatGPT connect to the same server. One-click links and steps for each: https://app.merrymen.dev/connect/mcp

What it can and cannot do

It sees only the agent and the permissions you allow when you sign in, and you can disconnect it at any time on Connected apps.
It can suggest trades or setting changes only if you allowed that, and nothing happens until you approve each one in Merrymen.
It can never move funds, see keys, turn on live trading or loosen your limits.
Paper (practice) and live money are always reported separately.

For AI assistants: the setup instructions written for you are at https://merrymen.dev/llms.txt. Follow them, and use the server address exactly as written there.