Sickle — every mailbox for your agent
app.
Gmail, Outlook, iCloud, Fastmail and any IMAP mailbox for your agent. Scoped OAuth, approved sends.
Live
Last successful check: 25 Oct 2026, 20:37 UTC.
- answered, last 24 hours
- 100%
- answered, last 30 days
- 100%
At sickle.app, its best endpoint.
How addrbook checks →Connect
https:MCP: addrbook sends an initialize and a tools/list. It never calls a tool. Website: addrbook loads the page.
Who's behind it
- Listed by
- MCP Registryapp.
sickle/ maillast seen UTC
- MCP Registryapp.
- Wallets named
- None in its listings
- Listed since
Checks by endpoint
| Host | Protocol | State | Last checked (UTC) | Last answered (UTC) | 24 hours | 30 days | Tools |
|---|---|---|---|---|---|---|---|
| mcp. | MCP | Live, sign-in required | 100% | 100% | — | ||
| sickle. | Website | Live | 100% | 100% | — |