Sickle — every mailbox for your agent

Overview

Sickle is a Model Context Protocol server that gives your AI agent access to multiple email accounts. It supports Gmail, Outlook, iCloud, Fastmail, and any IMAP mailbox, with scoped OAuth authentication and approved sends for secure email operations.

The server runs as a remote endpoint at https://mcp.sickle.app, so there's nothing to install locally—just connect your MCP client and you're ready to go. The latest release is v1.1.0. Learn more at https://sickle.app/mcp.

Sickle appears in the AI & Agents category on mcp.site and works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any other MCP client. If you maintain Sickle for sickle.app, claim this listing to verify ownership and keep the information up to date.

Installation

Settings → Connectors → Add custom connector
Name: Sickle — every mailbox for your agent
URL:  https://mcp.sickle.app