Evidence row 17239

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mailbuttons.com/api/v1/mcp/rpc"
    ],
    [
      "web",
      "https://mailbuttons.com/"
    ]
  ],
  "name": "Mailbuttons (mbag.ai)",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-15T12:24:44.365591Z",
        "status": "active",
        "statusChangedAt": "2026-10-15T12:24:44.365591Z",
        "updatedAt": "2026-10-15T12:24:44.365591Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Governed email for AI agents (Mailbuttons / mbag.ai): sandbox inboxes, policy gate, audit log.",
      "name": "com.mailbuttons/mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "A scoped Mailbuttons MCP token (mb_sandbox_...). Sandbox-by-default; external send requires human promotion.",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "MAILBUTTONS_API_KEY"
            },
            {
              "default": "https://mailbuttons.com",
              "description": "Backend base URL. Defaults to https://mailbuttons.com; set for self-hosted or local.",
              "format": "string",
              "name": "MAILBUTTONS_API_URL"
            }
          ],
          "identifier": "@mailbuttons/mcp-server",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.1"
        }
      ],
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer token: a scoped Mailbuttons MCP token, sent as 'Bearer mb_sandbox_...' (or mb_production_... once promoted). Get one free: sign in with an email code to get an mbk_ API key, then POST https://mailbuttons.com/api/v1/mcp/sandbox-inboxes with it. Guide: https://mailbuttons.com/developers/#mcp",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://mailbuttons.com/api/v1/mcp/rpc"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/mailbuttons/mcp-server"
      },
      "title": "Mailbuttons (mbag.ai)",
      "version": "0.1.3",
      "websiteUrl": "https://mailbuttons.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Governed email for AI agents (Mailbuttons / mbag.ai): sandbox inboxes, policy gate, audit log."
}

What the leaf hashes

{"body":"3241b125686cc5eecda9402b5a58129161a0258b9bba6a9eb09cf3c0bb8152cc","id":17239,"kind":"listing","method":"baseline/1","observed_us":1793025326415272,"prev":null,"subject":"mcp_registry:com.mailbuttons/mcp-server","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.