Install Proton Mail (unofficial) for Claude Desktop
Claude Desktop reads mcpServers from claude_desktop_config.json. Restart the app after saving.
- Open ~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/.config/Claude/claude_desktop_config.json on Linux.
- Paste the JSON config below.
- Replace placeholder secrets, then restart the client if it does not reload on its own.
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"sethbang-proton-mail-mcp": {
"command": "npx",
"args": [
"-y",
"proton-mail-mcp@1.0.2"
],
"env": {
"PROTONMAIL_USERNAME": "",
"PROTONMAIL_PASSWORD": "YOUR_PROTONMAIL_PASSWORD",
"PROTONMAIL_HOST": "smtp.protonmail.ch",
"PROTONMAIL_PORT": "587",
"PROTONMAIL_SECURE": "false",
"IMAP_HOST": "127.0.0.1",
"IMAP_PORT": "1143",
"IMAP_SECURE": "false",
"IMAP_USERNAME": "",
"IMAP_PASSWORD": "YOUR_IMAP_PASSWORD",
"READONLY": "false",
"RESTRICT_OUTBOUND_TO_SELF": "false",
"ALLOW_FILE_DOWNLOAD_DIR": "",
"ALLOW_EMPTY_FOLDER": "false",
"DEBUG": "false"
}
}
}
}