Email Inbox API + Sending by Sendmux — MCP Server 安装配置（官方 MCP Registry）

{
  "id": "io.github.Sendmux/sendmux-mcp",
  "type": "mcp-server",
  "version": "1.3.1",
  "displayName": "Email Inbox API + Sending by Sendmux",
  "description": "AI email inbox and sending tools with attachments, search, live events, and webhooks.",
  "repository": {
    "url": "https://github.com/Sendmux/sendmux-sdk",
    "source": "github",
    "subfolder": "packages/python/mcp"
  },
  "homepage": "https://sendmux.ai/docs/guides/mcp",
  "distribution": {
    "packages": [
      {
        "registryType": "pypi",
        "identifier": "sendmux-mcp",
        "version": "1.3.1",
        "transport": "stdio",
        "environmentVariables": [
          {
            "name": "SENDMUX_MCP_SURFACES",
            "description": "Tool surfaces to run locally.",
            "isRequired": true
          },
          {
            "name": "SENDMUX_MAILBOX_API_KEY",
            "description": "Mailbox API key for Mailbox API and Sending API tools.",
            "isRequired": true,
            "isSecret": true
          },
          {
            "name": "SENDMUX_MANAGEMENT_API_KEY",
            "description": "Root API key for Management API tools.",
            "isRequired": true,
            "isSecret": true
          },
          {
            "name": "SENDMUX_SENDING_API_KEY",
            "description": "Optional send-capable smx_mbx_ key or owner-approved smx_agent_ token for Sending API tools when it differs from the Mailbox API key.",
            "isSecret": true
          }
        ]
      }
    ],
    "remotes": [
      {
        "transport": "streamable-http",
        "url": "https://mcp.sendmux.ai/mcp"
      }
    ]
  },
  "dependencies": [],
  "installTargets": [
    "claude-code",
    "claude-desktop",
    "cursor",
    "vscode"
  ],
  "keywords": [],
  "provenance": {
    "origin": "official-mcp-registry",
    "originalId": "io.github.Sendmux/sendmux-mcp",
    "originalUrl": "https://registry.modelcontextprotocol.io/v0.1/servers/io.github.Sendmux%2Fsendmux-mcp/versions/latest",
    "isOfficial": true,
    "status": "active"
  }
}