MCP quickstart

Connect the Moonlit MCP server to Claude. You sign in with your Moonlit account; no key is needed. At the end of this page, Claude answers legal questions from Moonlit's sources and cites them with source URLs.

Not using Claude? The Moonlit MCP server also works in Microsoft 365 Copilot, ChatGPT, Langdock, Le Chat, Perplexity, and any other AI app that supports remote MCP servers. See How to connect for step-by-step instructions per app.

Before you start

You need a Moonlit account. If you do not have one, create it at app.moonlit.ai. The server URL you will connect to is:

https://mcp.moonlit.ai/mcp

If your organization manages access centrally, see Organizations for MCP keys and deployed services.

Connect in Claude

  1. Open Claude. Go to Settings, then Connectors.
  2. Click Add custom connector.
  3. Set the name to Moonlit and paste the server URL: https://mcp.moonlit.ai/mcp.
  4. Click Add. A browser tab opens the Moonlit sign-in page.
  5. Sign in with your Moonlit account and approve the connection. The browser returns you to Claude.
  6. Verify: open a new chat and check the tools menu. The Moonlit connector should list nine tools.
When you configure the connector's tool access, allow all tools. Claude then picks the right tool for each question.

Connectors added in Claude on the web sync to the desktop and mobile apps on the same account. On Claude Team and Enterprise plans, a workspace Owner adds the connector; see How to connect.

Connect in Claude Code

  1. Run claude mcp add --transport http moonlit https://mcp.moonlit.ai/mcp.
  2. Trigger the sign-in with /mcp. Claude Code opens the Moonlit sign-in page in your browser; sign in and approve the connection.
  3. Verify with claude mcp list. Moonlit should report as connected.

To make the server available in every project, or to share it with your team through a checked-in config, use the scope flags described in How to connect.

First call

Searches and document retrievals count against your plan's monthly quota; see How usage counts. Prompt:

Find the official text of Article 6 of the EU AI Act.

What you should see: a citation to CELEX 32024R1689 with the source URL to the original document at the publisher, followed by the article text.

Claude picks the tools itself. This prompt typically uses convert_to_celex and get_document_articles; the full surface is described on the Tools page.

To check your plan and remaining monthly calls at any time, ask: "What is my Moonlit account status?" The get_account_status call is always free.

Troubleshooting first connect

  • Connection fails immediately. Check that the server URL ends in /mcp.
  • Sign-in never completes. Allow pop-ups and third-party cookies for mcp.moonlit.ai. If the browser was signed into a different Moonlit account, sign out at app.moonlit.ai and connect again.
  • Sign-in rejected. The account has no active MCP plan. Check your plan in the Moonlit platform or see Get access.
  • Tools listed but every call fails. Two causes are worth checking: the monthly quota is exhausted (ask for your account status; the check is free), or outbound HTTPS to mcp.moonlit.ai is blocked at your firewall.
  • Starting over. Remove the connector or server entry, add it again, and complete the sign-in once more.

For client-specific setup issues, see If something fails on the connect page, or email support@moonlit.ai.

Next: Example prompts.

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