Mailbuttons (mbag.ai)

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "com.mailbuttons/mcp-server",
  "description": "Governed email for AI agents (Mailbuttons / mbag.ai): sandbox inboxes, policy gate, audit log.",
  "title": "Mailbuttons (mbag.ai)",
  "repository": {
    "url": "https://github.com/mailbuttons/mcp-server",
    "source": "github"
  },
  "version": "0.1.2",
  "websiteUrl": "https://mailbuttons.com",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@mailbuttons/mcp-server",
      "version": "0.1.0",
      "runtimeHint": "npx",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "A scoped Mailbuttons MCP token (mb_sandbox_...). Sandbox-by-default; external send requires human promotion.",
          "isRequired": true,
          "format": "string",
          "isSecret": true,
          "name": "MAILBUTTONS_API_KEY"
        },
        {
          "description": "Backend base URL. Defaults to https://mailbuttons.com; set for self-hosted or local.",
          "format": "string",
          "default": "https://mailbuttons.com",
          "name": "MAILBUTTONS_API_URL"
        }
      ]
    }
  ],
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://mailbuttons.com/api/v1/mcp/rpc",
      "headers": [
        {
          "description": "Bearer token: a scoped Mailbuttons MCP token, sent as 'Bearer mb_sandbox_...' (or mb_prod_...). Create one in the dashboard, or via POST /api/v1/mcp/sandbox-inboxes.",
          "isRequired": true,
          "isSecret": true,
          "name": "Authorization"
        }
      ]
    }
  ]
}