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Proton Mail (unofficial) for VS Code

io.github.sethbang/proton-mail-mcp

Unofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP

client:VS Code transport:stdio runtime:npm

Install Proton Mail (unofficial) in VS Code

.vscode/mcp.json

{
  "inputs": [
    {
      "type": "promptString",
      "id": "protonmail-username",
      "description": "PROTONMAIL_USERNAME",
      "password": true
    },
    {
      "type": "promptString",
      "id": "protonmail-password",
      "description": "PROTONMAIL_PASSWORD",
      "password": true
    },
    {
      "type": "promptString",
      "id": "protonmail-host",
      "description": "PROTONMAIL_HOST",
      "password": true
    },
    {
      "type": "promptString",
      "id": "protonmail-port",
      "description": "PROTONMAIL_PORT",
      "password": true
    },
    {
      "type": "promptString",
      "id": "protonmail-secure",
      "description": "PROTONMAIL_SECURE",
      "password": true
    },
    {
      "type": "promptString",
      "id": "imap-host",
      "description": "IMAP_HOST",
      "password": true
    },
    {
      "type": "promptString",
      "id": "imap-port",
      "description": "IMAP_PORT",
      "password": true
    },
    {
      "type": "promptString",
      "id": "imap-secure",
      "description": "IMAP_SECURE",
      "password": true
    },
    {
      "type": "promptString",
      "id": "imap-username",
      "description": "IMAP_USERNAME",
      "password": true
    },
    {
      "type": "promptString",
      "id": "imap-password",
      "description": "IMAP_PASSWORD",
      "password": true
    },
    {
      "type": "promptString",
      "id": "readonly",
      "description": "READONLY",
      "password": true
    },
    {
      "type": "promptString",
      "id": "restrict-outbound-to-self",
      "description": "RESTRICT_OUTBOUND_TO_SELF",
      "password": true
    },
    {
      "type": "promptString",
      "id": "allow-file-download-dir",
      "description": "ALLOW_FILE_DOWNLOAD_DIR",
      "password": true
    },
    {
      "type": "promptString",
      "id": "allow-empty-folder",
      "description": "ALLOW_EMPTY_FOLDER",
      "password": true
    },
    {
      "type": "promptString",
      "id": "debug",
      "description": "DEBUG",
      "password": true
    }
  ],
  "servers": {
    "proton-mail-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "proton-mail-mcp"
      ],
      "env": {
        "PROTONMAIL_USERNAME": "${input:protonmail-username}",
        "PROTONMAIL_PASSWORD": "${input:protonmail-password}",
        "PROTONMAIL_HOST": "${input:protonmail-host}",
        "PROTONMAIL_PORT": "${input:protonmail-port}",
        "PROTONMAIL_SECURE": "${input:protonmail-secure}",
        "IMAP_HOST": "${input:imap-host}",
        "IMAP_PORT": "${input:imap-port}",
        "IMAP_SECURE": "${input:imap-secure}",
        "IMAP_USERNAME": "${input:imap-username}",
        "IMAP_PASSWORD": "${input:imap-password}",
        "READONLY": "${input:readonly}",
        "RESTRICT_OUTBOUND_TO_SELF": "${input:restrict-outbound-to-self}",
        "ALLOW_FILE_DOWNLOAD_DIR": "${input:allow-file-download-dir}",
        "ALLOW_EMPTY_FOLDER": "${input:allow-empty-folder}",
        "DEBUG": "${input:debug}"
      }
    }
  }
}

VS Code prompts for each input the first time the server starts, so no secret is written to the file. VS Code docs

Proton Mail (unofficial) in other clients