Proton Mail MCP Server

What the code does

We read the source, 11 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

      const version = execFileSync(cliBin, ['--version'], {

COPY package.json pnpm-lock.yaml pnpm-workspace.yaml .npmrc ./

USER root

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add proton-mail-mcp -- npx -y @alexendros/proton-mail-mcp

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

[mcp_servers.proton-mail-mcp]
command = "npx"
args = ["-y", "@alexendros/proton-mail-mcp"]

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

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

This one needs environment variables set before it will start: PROTON_BRIDGE_HOST (Hostname or IP of the Proton Mail Bridge (default: 127.0.0.1 for local, or container hostname in compose).), PROTON_IMAP_PORT (IMAP port exposed by Proton Mail Bridge (default: 1143).), PROTON_SMTP_PORT (SMTP port exposed by Proton Mail Bridge (default: 1025).), PROTON_USERNAME (Bridge username (your Proton Mail address).), PROTON_PASSWORD (Bridge-generated app password (NOT your Proton account password).). The author declared them in the registry entry; get the values from the project itself.