mcp-hello-py
Greets users in Korean by name, supporting single and multiple recipients.
README
👋 MCP Hello Server (Python)
简单的 Hello MCP 服务器 - 接收输入的姓名,并用韩语打招呼!
📂 结构
mcp-hello-py/
├── src/
│ ├── __init__.py # 包初始化
│ └── server.py # MCP 服务器
├── .env # 环境变量配置
├── requirements.txt # 依赖项
├── pyproject.toml # 项目元数据
├── Dockerfile # Docker 配置
└── README.md # 此文件
✨ 主要功能
- say_hello: 以
"안녕하세요, {name}님!"的格式打招呼 - say_hello_multiple: 一次向多个人打招呼
- MCP 协议: 支持 Tools、Resources、Prompts
📦 安装
# 创建并激活虚拟环境
python3 -m venv venv
source venv/bin/activate # Windows: venv\Scripts\activate
# 安装依赖
pip install -r requirements.txt
🔧 环境变量配置
创建 .env 文件:
# .env 文件内容
PORT=8080
🚀 运行
🌐 Streamable HTTP 模式 (Cloud Run, Web)
python3 src/server.py --http-stream
# 使用自定义端口
PORT=3000 python3 src/server.py --http-stream
🏗️ 架构
┌─────────────┐ ┌─────────────────┐
│ Postman / │ ───▶ │ MCP Hello │
│ MCP Client │ │ Server │
│ │ ◀─── │ (Python) │
└─────────────┘ └─────────────────┘
HTTP MCP
POST /mcp Protocol
🧪 测试(Postman)
📋 Headers 设置(所有请求必填)
| Header | Value |
|---|---|
Content-Type |
application/json |
Accept |
application/json |
1️⃣ 初始化 MCP 服务器
- Method:
POST - URL:
http://localhost:8080/mcp - Body (raw JSON):
{
"jsonrpc": "2.0",
"id": 1,
"method": "initialize",
"params": {
"protocolVersion": "2024-11-05",
"capabilities": {},
"clientInfo": {"name": "postman", "version": "1.0.0"}
}
}
2️⃣ 查看 Tool 列表
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/list",
"params": {}
}
3️⃣ say_hello 调用
{
"jsonrpc": "2.0",
"id": 3,
"method": "tools/call",
"params": {
"name": "say_hello",
"arguments": {"name": "김철수"}
}
}
响应示例:
{
"jsonrpc": "2.0",
"id": 3,
"result": {
"content": [{"type": "text", "text": "안녕하세요, 김철수님!"}]
}
}
4️⃣ say_hello_multiple 调用
{
"jsonrpc": "2.0",
"id": 4,
"method": "tools/call",
"params": {
"name": "say_hello_multiple",
"arguments": {"names": ["김철수", "이영희", "박민수"]}
}
}
响应示例:
{
"jsonrpc": "2.0",
"id": 4,
"result": {
"content": [{"type": "text", "text": "• 안녕하세요, 김철수님!\n• 안녕하세요, 이영희님!\n• 안녕하세요, 박민수님!"}]
}
}
☁️ Cloud Run 部署
🧪 测试已部署的服务器
部署 URL 示例: https://mcp-hello-py-xxxxxx.asia-northeast3.run.app/mcp
在 Postman 中仅修改 URL 即可用同样方式测试。
🔧 环境变量配置(Cloud Run)
| 变量 | 值 | 说明 |
|---|---|---|
PORT |
8080 |
Cloud Run 默认端口(自动设置) |
🛠️ MCP Tools
say_hello
向一个人打招呼。
| 参数 | 类型 | 必填 | 说明 |
|---|---|---|---|
name |
string | 是 | 要问候的人的姓名 |
say_hello_multiple
同时向多个人打招呼。
| 参数 | 类型 | 必填 | 说明 |
|---|---|---|---|
names |
array | 是 | 姓名列表 |
📚 技术栈
- Python: 3.11+
- MCP SDK: 1.23.0+ (FastMCP)
- Pydantic: 2.x
- Uvicorn: ASGI 服务器
- Docker: 容器化
📡 传输模式
| 模式 | 使用场景 | 端点 |
|---|---|---|
| stdio | Claude Desktop, MCP Inspector | stdin/stdout |
| Streamable HTTP | Cloud Run, Web | POST /mcp |
📖 参考
📄 许可证
MIT License
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