Sickle

Sickle connects every mailbox you have (Gmail, Outlook, iCloud, Fastmail or any IMAP server) to your AI tools through one remote MCP server at mcp.sickle.app.

Add it once in Claude, Claude Code, Cursor, Codex, VS Code or any client that supports remote MCP, sign in with OAuth, and your agent can search, read, file and draft across all your accounts. Sending is a separate permission you grant on purpose.

• Nothing to install or run locally
• Scoped OAuth, revocable at any time
• No copies of your email kept on the server
• Comes with Sickle, a native Mac mail app, on the same subscription

For developers, founders and anyone juggling several inboxes who wants their agent to handle email. 7-day free trial.