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Use: Bearer \" } },\n 401,\n );\n }\n\n const token = authHeader.slice(7);\n if (token !== AUTH_TOKEN) {\n return c.json(\n { jsonrpc: \"2.0\", error: { code: -32001, message: \"Invalid token\" } },\n 403,\n );\n }\n\n return next();\n}\n\n// 给 /mcp 所有方法加上认证\napp.use(\"/mcp\", authMiddleware);\n\n// ============================================================\n// HTTP 端点\n// ============================================================\n\n// MCP Streamable HTTP 端点\napp.post(\"/mcp\", async (c) => {\n const body = await c.req.json();\n\n // 处理批量请求\n if (Array.isArray(body)) {\n const results = body.map((req) => {\n try {\n const result = handleJsonRpc(req);\n if (result === undefined) return null; // notification\n return { jsonrpc: \"2.0\", id: req.id, result };\n } catch (err: any) {\n return {\n jsonrpc: \"2.0\",\n id: req.id,\n error: { code: err.code || -32603, message: err.message },\n };\n }\n }).filter(Boolean);\n return c.json(results);\n }\n\n // 单个请求\n try {\n const result = handleJsonRpc(body);\n if (result === undefined) {\n return c.body(null, 204); // notification — no response\n }\n return c.json({ jsonrpc: \"2.0\", id: body.id, result });\n } catch (err: any) {\n return c.json({\n jsonrpc: \"2.0\",\n id: body.id,\n error: { code: err.code || -32603, message: err.message },\n });\n }\n});\n\n// 支持 GET /mcp (SSE 端点 — 返回空 SSE 流用于兼容)\napp.get(\"/mcp\", (c) => {\n return new Response(\"event: endpoint\\ndata: /mcp\\n\\n\", {\n headers: {\n \"Content-Type\": \"text/event-stream\",\n \"Cache-Control\": \"no-cache\",\n Connection: \"keep-alive\",\n },\n });\n});\n\n// DELETE /mcp — 会话终止\napp.delete(\"/mcp\", (c) => c.body(null, 204));\n\n// 首页\napp.get(\"/\", (c) => {\n const mcpUrl = new URL(\"/mcp\", c.req.url).href;\n return c.html(`\n\n\n Hello MCP Server\n \n\n\n

👋 Hello MCP Server

一个简单的 MCP (Model Context Protocol) 服务器

\n \n

🛠️ 可用工具

\n say_hello\n — 跟某人打招呼\n
\n get_time\n — 获取当前时间\n
\n add\n — 两个数字相加\n

\n\n

🔒 认证状态

${AUTH_TOKEN\n ? '✅ 已启用 Bearer Token 认证'\n : '⚠️ 未设置 MCP_AUTH_TOKEN，认证已跳过'\n }

\n\n

🔗 连接方式

在你的 MCP 客户端配置中添加:

{\n  \"mcpServers\": {\n    \"hello-mcp\": {\n      \"type\": \"streamable-http\",\n      \"url\": \"${mcpUrl}\",\n      \"headers\": {\n        \"Authorization\": \"Bearer YOUR_TOKEN\"\n      }\n    }\n  }\n}

\n view source\n

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Code