这篇就按「协议基础 → FastMCP 服务端 → VS Code 调试 → 统一 Key 接入 → 端到端验证 → 报错排查」的顺序走一遍。核心检索词是 MCP 协议、FastMCP、Python JSON-RPC 服务、VS Code 调试配置，以及用 TaoToken 统一 Key 跑通工具调用链路。全程可复制，配置片段路径和原文一致。
A malicious MCP server could trick an application built on the official MCP Python SDK into handing over the OAuth credentials it uses to log in to a real service, the SDK's maintainers said in a ...
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