WhatsApp Web MCP Server

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-09-05T19:08:01.099784Z",
      "publishedAt": "2026-09-05T19:08:01.099784Z",
      "statusChangedAt": "2026-09-05T19:08:01.099784Z"
    }
  },
  "server": {
    "name": "io.github.mario-andreschak/mcp-whatsapp-web",
    "icons": [
      {
        "src": "https://raw.githubusercontent.com/mario-andreschak/mcp-whatsapp-web/main/public/logo.png",
        "sizes": [
          "391x389"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "WhatsApp Web MCP Server",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "1.2.0",
    "packages": [
      {
        "version": "1.2.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "mcp-whatsapp-web",
        "runtimeHint": "npx",
        "registryType": "npm",
        "registryBaseUrl": "https://registry.npmjs.org",
        "environmentVariables": [
          {
            "name": "WHATSAPP_BACKEND",
            "format": "string",
            "choices": [
              "webjs",
              "baileys"
            ],
            "default": "webjs",
            "description": "WhatsApp backend: webjs uses a persistent browser profile; baileys connects without a browser and requires separate pairing"
          },
          {
            "name": "BAILEYS_SESSION_DIR",
            "format": "filepath",
            "description": "Baileys credentials and synchronized history directory (default: <working directory>/baileys-sessions). Use a private absolute path, owned by one server process."
          },
          {
            "name": "LOG_LEVEL",
            "format": "string",
            "choices": [
              "trace",
              "debug",
              "info",
              "warn",
              "error",
              "fatal"
            ],
            "default": "info",
            "description": "Log level for the log file (logs/mcp-whatsapp.log)"
          },
          {
            "name": "LOG_STDERR_LEVEL",
            "format": "string",
            "choices": [
              "trace",
              "debug",
              "info",
              "warn",
              "error",
              "fatal"
            ],
            "default": "warn",
            "description": "Log level for stderr (visible in most MCP client logs)"
          },
          {
            "name": "WHATSAPP_HEADLESS",
            "format": "boolean",
            "description": "webjs only: set to false to show the browser window instead of running headless"
          },
          {
            "name": "WHATSAPP_NO_SANDBOX",
            "format": "boolean",
            "default": "false",
            "description": "webjs only: explicitly disable the browser sandbox for containers that require it. The sandbox is enabled by default."
          },
          {
            "name": "BROWSER_EXECUTABLE_PATH",
            "format": "filepath",
            "description": "webjs only: browser executable. Chrome and Edge are auto-detected; set this to use a specific browser. Chrome/Edge is required for sending videos and GIFs."
          },
          {
            "name": "WHATSAPP_SESSION_DIR",
            "format": "filepath",
            "description": "webjs only: persistent browser profile directory (default: <working directory>/whatsapp-sessions)"
          },
          {
            "name": "WHATSAPP_PAIRING_PHONE_NUMBER",
            "format": "string",
            "description": "Phone number pairing: when set (international, symbol-free format, e.g. 4915112345678), an 8-character pairing code is logged to stderr on startup instead of relying on the QR code"
          },
          {
            "name": "FFMPEG_PATH",
            "format": "filepath",
            "description": "Path to an ffmpeg binary (only needed to override the ffmpeg installed automatically via the ffmpeg-static npm package)"
          },
          {
            "name": "WA_WEB_VERSION",
            "format": "string",
            "description": "webjs only: pin the WhatsApp Web version if a WhatsApp-side update breaks the client."
          },
          {
            "name": "HEALTH_CHECK_INTERVAL_MS",
            "format": "number",
            "default": "60000",
            "description": "webjs only: connection health check interval in milliseconds (<=0 disables)"
          },
          {
            "name": "TOOL_READY_TIMEOUT_MS",
            "format": "number",
            "default": "45000",
            "description": "How long tool calls wait for the WhatsApp client to become ready before erroring"
          },
          {
            "name": "MCP_HTTP_PORT",
            "format": "number",
            "description": "When set, additionally exposes the MCP endpoint at http://127.0.0.1:<port>/mcp (Streamable HTTP) from the same process"
          },
          {
            "name": "MCP_HTTP_HOST",
            "format": "string",
            "default": "127.0.0.1",
            "description": "Bind address for the HTTP endpoint (do not expose publicly; the endpoint controls your personal WhatsApp account)"
          },
          {
            "name": "MCP_OAUTH",
            "format": "boolean",
            "description": "Enable OAuth for the HTTP endpoint: /mcp requires a bearer token and clients authenticate via a browser page showing the WhatsApp QR code / pairing form"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/mario-andreschak/mcp-whatsapp-web",
      "source": "github"
    },
    "websiteUrl": "https://github.com/mario-andreschak/mcp-whatsapp-web",
    "description": "WhatsApp MCP via web.js or browserless Baileys: messages, media, chats, groups and contacts"
  }
}