RemoteFree server, account needed

Sickle MCP server

app.sickle/mail

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

Website

Install Sickle in Claude Code

Claude Code
claude mcp add --transport http sickle https://mcp.sickle.app
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "sickle": {
      "url": "https://mcp.sickle.app"
    }
  }
}

Frequently asked questions

What does the Sickle MCP server do?

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

Is the Sickle MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Sickle run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add Sickle to Claude Code?

Run: claude mcp add --transport http sickle https://mcp.sickle.app

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