Proton Mail (unofficial)

About Proton Mail (unofficial)

Use Proton Mail (unofficial) with your agent

claude mcp add proton-mail-unofficial -- npx -y proton-mail-mcp

{
  "mcpServers": {
    "proton-mail-unofficial": {
      "command": "npx",
      "args": [
        "-y",
        "proton-mail-mcp"
      ]
    }
  }
}

Frequently asked questions

What is Proton Mail (unofficial)?

Proton Mail (unofficial) is an MCP (Model Context Protocol) server by sethbang in the Search category. Unofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP

How do I connect Proton Mail (unofficial) to Claude, Cursor, or another MCP client?

Install Proton Mail (unofficial) from its npm package (proton-mail-mcp) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is Proton Mail (unofficial) open source?

Yes — the source code is public at github.com/sethbang/proton-mail-mcp, with 2 GitHub stars.

Can AI agents pay to use Proton Mail (unofficial)?

Not yet through Loomal — Proton Mail (unofficial) is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.