What is a #letters MCP server?
An MCP server tagged #letters implements the Model Context Protocol so AI assistants like Claude, Cursor, and VS Code can access letters-related tools, data, or APIs.
2 #letters MCP Servers & Clients
Every MCP server and client below is tagged #letters — install one to give Claude, Cursor, VS Code, or any other MCP-compatible client access to letters tools.
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MailStream
Sponge Labs
The first MCP server for physical mail. Give any MCP-compatible AI agent the ability to send real postcards and letters, verify addresses, manage mailing lists and artwork, and track direct mail campaigns. Remote Streama
Added 6 days ago
Pieterpost Mcp
neddes
PieterPost MCP lets AI agents prepare, price, review, pay for, and send real letters and postcards through PieterPost.
Added last month
Frequently asked questions
Common questions about MCP servers and clients tagged #letters
How many #letters MCP servers and clients are there?
mcp.so currently lists 2 MCP servers and clients tagged #letters.
How do I install a #letters MCP server?
Open any server below and copy its install snippet into Claude Desktop, Cursor, VS Code, or another MCP client's configuration — remote servers need no separate download.