Mailbuttons (mbag.ai)

Overview

Mailbuttons (mbag.ai) is a Model Context Protocol (MCP) server: Governed email for AI agents (Mailbuttons / mbag.ai): sandbox inboxes, policy gate, audit log. As an MCP server it plugs straight into AI assistants, exposing its functionality as tools the model can invoke on your behalf.

You can run Mailbuttons (mbag.ai) two ways: connect to the hosted endpoint at https://mailbuttons.com/api/v1/mcp/rpc with no local install, or run it on your own machine via the npm package @mailbuttons/mcp-server. Configuration happens through environment variables — you'll need MAILBUTTONS_API_KEY. The current release is v0.1.2, published under the MIT license, with source at mailbuttons/mcp-server on GitHub.

You'll find Mailbuttons (mbag.ai) in the AI & Agents category here on mcp.site; it connects to Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any other MCP client — see the install snippets below. If you maintain Mailbuttons (mbag.ai) for mailbuttons.com, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

Settings → Connectors → Add custom connector
Name: Mailbuttons (mbag.ai)
URL:  https://mailbuttons.com/api/v1/mcp/rpc

Requires MAILBUTTONS_API_KEY