Notify MCP Server

Instructions

Implementation Reference

• mcp_notify/wework.py:48-61 (handler)

  The handler function for the 'wework_send_image' tool. It fetches the image from the provided URL, encodes it to base64, computes its MD5 hash, and sends it as an image message using the WeWork group robot webhook API.

  def wework_send_image(
      url: str = Field(description="图片url"),
      bot_key: str = FIELD_BOT_KEY,
  ):
      res = requests.get(url, timeout=120)
      res.raise_for_status()
      b64str = base64.b64encode(res.content).decode()
      md5str = hashlib.md5(res.content).hexdigest()
      res = requests.post(
          f"{WEWORK_BASE_URL}/cgi-bin/webhook/send?key={bot_key or WEWORK_BOT_KEY}",
          json={"msgtype": "image", "image": {"base64": b64str, "md5": md5str}},
          timeout=120,
      )
      return res.json()

• mcp_notify/wework.py:44-47 (registration)

  The @mcp.tool decorator registers the 'wework_send_image' tool with its title and description within the add_tools function.

  @mcp.tool(
      title="企业微信群机器人-发送图片消息",
      description="通过企业微信群机器人发送图片消息",
  )

• mcp_notify/__init__.py:18-19 (registration)

  Top-level registration: Creates the FastMCP instance and calls wework.add_tools(mcp), which defines and registers the 'wework_send_image' tool among others.

  mcp = FastMCP(name="mcp-notify", version="0.1.8")
  wework.add_tools(mcp)

• mcp_notify/wework.py:20-21 (helper)

  Pydantic Field helpers used for the bot_key parameter in wework_send_image and other WeWork tools, providing descriptions and defaulting to environment variables.

  FIELD_BOT_KEY = Field("", description="企业微信群机器人key，uuid格式，默认从环境变量获取")
  FIELD_TO_USER = Field("", description="接收消息的成员ID，多个用`|`分隔，为`@all`时向该企业应用全部成员发送，默认从环境变量获取")