SuperMailbox
SuperMailbox is an MCP server by hardtab. Search connected email, read and manage messages, draft and send, and manage rules for new mail. It is listed in Productivity.
- Category
- Productivity
- Author
- hardtab
- GitHub stars
- Not on GitHub
- This week
- Tracking since 18 Oct 2026
- Language
- Not stated
- License
- Not stated
- Last update
- 2026-10-16 (8 days ago)
- Links
- Source
How to install SuperMailbox
SuperMailbox is a remote MCP server listed in the official MCP Registry. Its endpoint is https://api.supermailbox.app/mcp. Add it to Claude Code with claude mcp add --transport http SuperMailbox https://api.supermailbox.app/mcp, or follow the install guide for Cursor, Claude Desktop and VS Code. Most remote servers ask you to sign in or pass an API key the first time you connect.
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Frequently asked questions
What is SuperMailbox?
SuperMailbox is an MCP server by hardtab in the Productivity category. Search connected email, read and manage messages, draft and send, and manage rules for new mail. It is listed in Productivity. No license is stated. It was last updated 8 days ago.
Is SuperMailbox free and open source?
The listing has no license field, which usually means the repository does not declare one. Without a license the code is not open source by default, so ask the maintainer before reusing it. You can still read the code and the README at the source link.
What are the alternatives to SuperMailbox?
Other Productivity projects on MCP Harbor include markitdown, Agent-Reach, AstrBot. Each alternative links to its own page with stars, license and recent activity. The Productivity category ranks all 1809 by stars, and you can re-sort it by growth this week.
Alternatives to SuperMailbox
All 1809 Productivity MCP servers →
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