Utility MCP Server
实用工具 MCP 服务器
一个功能齐全的模型上下文协议 (MCP) 服务器,提供实用工具、资源和提示词。使用 TypeScript 和现代 MCP SDK 构建。
📁 项目结构
项目结构旨在实现可扩展性和可读性:
.
├── index.ts # Entry point: Initializes server and registers modules
├── src/
│ ├── tools.ts # Tool handlers (Arithmetic, Randomness, Sampling)
│ ├── prompts.ts # Prompt templates (Math Tutoring)
│ └── resources.ts # Resource definitions (System Status)
├── tests/
│ └── utility.test.ts # Comprehensive unit tests
├── package.json # Dependencies and scripts
├── tsconfig.json # TypeScript configuration
└── jest.config.js # Testing configurationRelated MCP server: MCP Server TypeScript
🚀 功能
1. 工具
random_number:在指定范围内生成一个随机整数。calculator:执行基本算术运算(add加、subtract减、multiply乘、divide除)。suggest_arithmetic_task:演示 LLM 采样,通过请求客户端/LLM 生成一个创造性的数学问题。
2. 资源
system_status(utility://system/status):提供服务器健康状况和功能数量的实时状态更新。
3. 提示词
math_tutor:一个引导 LLM 扮演数学老师角色的模板,可选择专注于特定主题。
📡 调用 API (Postman / JSON-RPC)
模型上下文协议使用 JSON-RPC 2.0。虽然此服务器目前通过 stdio(标准输入/输出)运行,但如果您通过 HTTP/SSE 网桥公开它或使用调试器,则可以使用这些消息格式与它进行交互。
🛠 工具
列出工具
请求:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}调用 calculator
请求:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "calculator",
"arguments": {
"operation": "multiply",
"a": 5,
"b": 10
}
}
}📖 资源
列出资源
请求:
{
"jsonrpc": "2.0",
"id": 3,
"method": "resources/list"
}读取 system_status
请求:
{
"jsonrpc": "2.0",
"id": 4,
"method": "resources/read",
"params": {
"uri": "utility://system/status"
}
}📝 提示词
列出提示词
请求:
{
"jsonrpc": "2.0",
"id": 5,
"method": "prompts/list"
}获取 math_tutor 提示词
请求:
{
"jsonrpc": "2.0",
"id": 6,
"method": "prompts/get",
"params": {
"name": "math_tutor",
"arguments": {
"topic": "algebra"
}
}
}🛠 开发
设置
npm install运行服务器
npm start运行测试
npm test🤖 使用自定义客户端
我们包含了一个内置的客户端示例,以便您了解如何以编程方式进行连接:
npm run client此脚本将:
将服务器作为子进程启动。
通过 Stdio 连接。
自动演示列出工具、调用计算器和读取资源。
🔍 使用 MCP Inspector 进行测试
要以可视化方式与服务器交互:
npx @modelcontextprotocol/inspector npx tsx index.ts[!IMPORTANT] 此服务器使用 Stdio 传输。它通过
stdin和stdout进行通信。若要使 Postman 通过 HTTP 工作,需要在服务器配置中添加 SSE(服务器发送事件)传输层。
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