proton-mail-mcp

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About

Proton Mail MCP via Bridge (IMAP/SMTP) · 13 tools · dual transport stdio + HTTP.

Use this server

Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.

Transportstdio (runs a local command)

Env varsPROTON_BRIDGE_HOST PROTON_IMAP_PORT PROTON_SMTP_PORT PROTON_USERNAME PROTON_PASSWORD

Claude Code

claude mcp add --env PROTON_BRIDGE_HOST= --env PROTON_IMAP_PORT= --env PROTON_SMTP_PORT= --env PROTON_USERNAME= --env PROTON_PASSWORD= proton-mail-mcp -- npx @alexendros/proton-mail-mcp

Cursor

Add to Cursor

If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.

VS Code

code --add-mcp '{"name":"proton-mail-mcp","command":"npx","args":["@alexendros/proton-mail-mcp"],"env":{"PROTON_BRIDGE_HOST":"","PROTON_IMAP_PORT":"","PROTON_SMTP_PORT":"","PROTON_USERNAME":"","PROTON_PASSWORD":""}}'

JSON

{
  "mcpServers": {
    "proton-mail-mcp": {
      "command": "npx",
      "args": [
        "@alexendros/proton-mail-mcp"
      ],
      "env": {
        "PROTON_BRIDGE_HOST": "",
        "PROTON_IMAP_PORT": "",
        "PROTON_SMTP_PORT": "",
        "PROTON_USERNAME": "",
        "PROTON_PASSWORD": ""
      }
    }
  }
}

Environment variables are listed by name only — fill in your own values. Entries never carry secrets.