All integrations

MCP

Available

One MCP server at /api/mcp, with OAuth and six tools. Any client that speaks MCP can use it: Claude Code, Cursor, VS Code, the MCP node in n8n, and whatever comes next.

What you can do with it

quote_letter, preview_letter, validate_address, list_letters, get_letter and send_letter.
Everything except send_letter is marked read-only, so a client knows what is safe to call.
send_letter is marked destructive and accepts only an id that came from quote_letter.

Connecting it

claude mcp add --transport http sendletter https://onlinebriefversturen.nl/api/mcp
Follow the sign-in your client opens.
Start with a test key if you want to try it first: it runs the whole chain without printing or charging.

API documentation