letterport MCP Server: Install & Setup

Install letterport in Claude Code

Claude Code

claude mcp add --transport http letterport https://api.letterport.dev/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "letterport": {
      "url": "https://api.letterport.dev/mcp"
    }
  }
}

Frequently asked questions

What does the letterport MCP server do?

Real email inboxes for AI agents: create addresses, read mail as JSON, reply in threads.

Is the letterport MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does letterport run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add letterport to Claude Code?

Run: claude mcp add --transport http letterport https://api.letterport.dev/mcp

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