SuperMailOS

com.supermailosv1.0.0Updated Oct 9, 2026

Read, search, organize, draft and send business email from your SuperMailOS mailboxes.

VerifiedStreamable HTTPWeb executableCommunication & Collaboration

Overview

AI-generated overview

Lets an assistant read, search, organize, draft and send business email from SuperMailOS mailboxes.

What it does
SuperMailOS is a remote MCP server that connects an assistant to SuperMailOS business mailboxes. According to the registry description, it supports reading, searching, organizing, drafting and sending email. The tools exposed depend on the scopes of the API key used, so a read-only key shows fewer tools than one with write or send scopes.
When to use it
Use it when an assistant should work with business email in SuperMailOS: finding messages, tidying mailboxes, preparing drafts, or sending mail on your behalf. It is a remote service, so nothing needs to be installed locally.
Requirements
A remote MCP endpoint at supermailos.com over streamable HTTP. It needs an Authorization header containing the word Bearer, a space, and a SuperMailOS API key beginning with smk_. A workspace admin creates the key in Settings, Developers, API keys. No environment variables or packages are declared.
Before you install
The Authorization header carries a SuperMailOS API key, which is a credential; keep it out of logs and shared configuration. The key's read, write and send scopes decide which tools appear, so a key with send scope can let the assistant send mail as you. Grant only the scopes you need and revoke keys you no longer use.

Installation

In SourceWeft

  1. Open SuperMailOS in the dashboard and add it to a workspace.
  2. 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.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "mail": {
      "type": "http",
      "url": "https://supermailos.com/api/mcp"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v1.0.0LatestOct 9, 2026