Express MCP 服务器 Echo

Express MCP 服务器

使用 Express 和 TypeScript 构建的无状态模型上下文协议 (MCP) 服务器。

特征

采用现代 Streamable HTTP 传输的无状态 MCP 服务器实现
TypeScript 类型安全
用于 HTTP 处理的 Express.js

要求

Node.js 18+
npm 或 yarn

安装

# Clone the repository (or download)
git clone https://github.com/your-username/sample-express-mcp-server.git
cd sample-express-mcp-server

# Install dependencies
npm install

发展

# Build the TypeScript code
npm run build

# Run in development mode with auto-reloading
npm run dev

# Run tests (when added)
npm test

服务器结构

src/
  ├── index.ts                # Main application entry point
  └── server.ts               # MCP server definition with resource, tool, and prompt

可用功能

该服务器通过三个 MCP 组件实现了一个简单的回显端点：

资源： echo://{message} - 将消息作为资源返回
工具： echo ——将提供的消息作为工具响应回显
提示： echo - 使用提供的消息创建用户提示

MCP 协议

该服务器实现了模型上下文协议(MCP)，这是 LLM 与外部数据和功能交互的标准化方式。它公开了一个响应 JSON-RPC 请求的无状态 API 端点。

API 使用

向/mcp发送一个带有 JSON-RPC 负载的 POST 请求：

初始化

curl -X POST http://localhost:3001/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -H "Accept: text/event-stream" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "initialize",
    "params": {
      "protocolVersion": "2024-11-05",
      "capabilities": {
        "roots": {
          "listChanged": true
        },
        "sampling": {}
      },
      "clientInfo": {
        "name": "ExampleClient",
        "version": "1.0.0"
      }
    }
  }'

呼叫回显工具

curl -X POST http://localhost:3001/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -H "Accept: text/event-stream" \
  -d '{
    "jsonrpc": "2.0",
    "method": "tools/call",
    "params": {
      "name": "echo",
      "arguments": {
        "message": "Hello, World!"
      }
    },
    "id": 1
  }'

执照

国际学习中心

This server cannot be installed

security - not tested

license - not found

quality - not tested

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

无状态模型上下文协议服务器，通过资源、工具和提示组件实现简单的回显功能，使 LLM 能够通过标准化 MCP 交互回显消息。

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Express MCP Server Echo

Express MCP 服务器

特征

要求

安装

发展

服务器结构

可用功能

MCP 协议

API 使用

初始化

呼叫回显工具

执照

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