Sickle — every mailbox for your agent

Gmail, Outlook, iCloud, Fastmail and any IMAP mailbox for your agent. Scoped OAuth, approved sends.

Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "mail": {
      "url": "https://mcp.sickle.app"
    }
  }
}

Remote endpoints

https://mcp.sickle.appstreamable-http

What it can do

No publishable tool enumeration has been recorded.

Community

Evidence

Oct 17, 2026, 5:02 AM UTCauth requiredversion not recorded—