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SuperMailbox

Official registry Search and web

Search connected email, read and manage messages, draft and send, and manage rules for new mail.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http supermailbox 'https://api.supermailbox.app/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "supermailbox": {
            "type": "http",
            "url": "https://api.supermailbox.app/mcp"
        }
    }
}

Frequently asked questions

What is SuperMailbox?

Search connected email, read and manage messages, draft and send, and manage rules for new mail.

How do I install SuperMailbox?

It runs as a remote server. In Claude Code: claude mcp add --transport http supermailbox 'https://api.supermailbox.app/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does SuperMailbox need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains SuperMailbox?

It is published by hardtab. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.