面向 Claude Desktop、Cursor 等 MCP 客户端的 Google 搜索 MCP 服务器

"""serpcrypto_mcp.py: an MCP server that gives AI clients a Google search tool.

Install once:  pip install "mcp[cli]" httpx
Run by your MCP client over stdio; the API key comes from the environment.
"""
import os

import httpx
from mcp.server.fastmcp import FastMCP

API_URL = "https://serpcrypto.com/api/v1/search"
mcp = FastMCP("serpcrypto-search")


@mcp.tool()
async def google_search(query: str, gl: str = "us", hl: str = "en", num_results: int = 5) -> str:
    """Search Google and return the top results (title, link, snippet) and the AI Overview text if any.

    gl is a two-letter country code (us, gb, de...), hl a language code (en, de, pt-BR...).
    Each call uses one SerpCrypto search credit.
    """
    headers = {"Authorization": "Bearer " + os.environ["SERPCRYPTO_API_KEY"]}
    params = {"q": query, "gl": gl, "hl": hl}
    async with httpx.AsyncClient(timeout=90) as client:
        r = await client.get(API_URL, params=params, headers=headers)
    if r.status_code != 200:
        return f"Search failed with HTTP {r.status_code}: {r.text[:300]}"
    data = r.json()
    lines = []
    overview = data.get("ai_overview") or {}
    if overview.get("text"):
        lines.append("AI Overview: " + overview["text"][:800])
    for item in data.get("organic_results", [])[: max(1, min(num_results, 10))]:
        lines.append(f"{item['position']}. {item['title']}\n{item['link']}\n{item.get('snippet', '')}")
    return "\n\n".join(lines) or "No results."


if __name__ == "__main__":
    mcp.run()  # stdio transport

{
  "mcpServers": {
    "serpcrypto-search": {
      "command": "python",
      "args": ["/absolute/path/to/serpcrypto_mcp.py"],
      "env": {
        "SERPCRYPTO_API_KEY": "paste-your-key-here"
      }
    }
  }
}

claude mcp add serpcrypto-search \
  -e SERPCRYPTO_API_KEY=paste-your-key-here \
  -- python /absolute/path/to/serpcrypto_mcp.py