SendLetter is a Model Context Protocol (MCP) server: Send real, printed letters by post across Europe. Requires a free account; quote before sending. In practice that means any MCP-compatible AI assistant can call SendLetter's tools directly — the model decides when to use them in a conversation or agent run.
It's a hosted (remote) server — point your client at https://sendletter.eu/api/mcp and you're connected, with nothing to install locally. The current release is v1.0.0, published under the MIT license, with source at gertsnijder/sendletter-node on GitHub.
SendLetter is listed under Development on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain SendLetter for sendletter.eu, claim this listing to verify ownership, earn the Verified badge, and keep the details current.