SuperMailbox
io.github.hardtabPublished by GitHub account hardtabv0.1.0Updated Oct 24, 2026
Search connected email, read and manage messages, draft and send, and manage rules for new mail.
The publisher's own server: mailbox.bot
Overview
SuperMailbox is a remote MCP server that lets an assistant search connected email, read and manage messages, draft and send mail, and manage rules for new mail.
- What you can do
- Search connected email accounts and read messages. Manage messages, such as organizing or removing them. Draft and send email. Manage rules that apply to incoming new mail.
- When to use it
- Useful when you want an assistant to work inside your email directly: finding messages, tidying a mailbox, composing replies or new mail, and setting up rules for incoming mail.
- Requirements
- A remote MCP server reached over streamable HTTP at its hosted endpoint; no local package or runtime is needed. Authentication is by OAuth and is required, so you need a SuperMailbox account and must complete the OAuth sign-in.
Installation
In SourceWeft
- Open SuperMailbox in the dashboard and add it to a workspace.
- Connect the required credentials. They are stored privately and never shown on public pages.
- Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.hardtab%2Fsupermailbox/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Other MCP clients
Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.
{
"mcpServers": {
"supermailbox": {
"type": "http",
"url": "https://api.supermailbox.app/mcp"
}
}
}Tools
0Version history
1- v0.1.0LatestOct 16, 2026
Score
67% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 daysRequired25 pts
- Auth declaredRequired10 pts
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
- LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.
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