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Mailbuttons MCP server

by mailbuttons · com.mailbuttons/mcp-server

Governed email for AI agents: a sandbox inbox to read and send from, human approval to go external.

🤖 AI & AgentsRemotenpmv0.1.4
Open in MCP HubGitHub repository ↗Website ↗

How to install Mailbuttons

Remote (http)

claude mcp add --transport http mcp-server https://mailbuttons.com/api/v1/mcp/rpc

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "mcp-server": {
      "type": "http",
      "url": "https://mailbuttons.com/api/v1/mcp/rpc",
      "headers": {
        "Authorization": "<value>"
      }
    }
  }
}

npm

claude mcp add -e MAILBUTTONS_API_KEY=<your-mailbuttons-api-key> mcp-server -- npx -y @mailbuttons/[email protected]

Or add it to your MCP config (Claude Desktop, Cursor, VS Code):

{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@mailbuttons/[email protected]"
      ],
      "env": {
        "MAILBUTTONS_API_KEY": "<your-mailbuttons-api-key>"
      }
    }
  }
}

Environment variables:
MAILBUTTONS_API_KEY (required) – A scoped Mailbuttons MCP token (mb_sandbox_...). Sandbox-by-default; external send requires human promotion.
MAILBUTTONS_API_URL – Backend base URL. Defaults to https://mailbuttons.com; set for self-hosted or local.

Replace placeholders in <angle brackets> with your own values. Review what a server can access before you enable it.

Details

Version
0.1.4
Published
2026-10-28
Updated
2026-10-28
Namespace
com.mailbuttons
Source
mailbuttons/mcp-server

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