mcp-hello-py
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@mcp-hello-pyGreet Alice in Korean"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
👋 MCP Hello Server (Python)
简单的 Hello MCP 服务器 - 接收输入的姓名,并用英语打招呼!
📂 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(本地)
├── .env.example # 环境变量配置模板
├── requirements.txt # 依赖项
├── pyproject.toml # 项目元数据
├── Dockerfile # Docker 配置
└── README.md # 此文件Related MCP server: Nunchi Translator MCP
✨ 主要功能
say_hello: 以 `"Hello, {name}!" 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启动后有以下端点可用:
MCP 协议:
http://localhost:8080/mcp健康检查:
http://localhost:8080/health服务信息:
http://localhost:8080/
健康检查返回示例:
{
"status": "healthy",
"service": "mcp-hello",
"version": "1.0.0"
}🔌 AI 编辑器配置示例
1️⃣ 本地 stdio 模式配置
适用于本地运行服务器的情况,直接通过 stdin/stdout 通信:
{
"mcpServers": {
"mcp-hello": {
"command": "/Users/wuxian/.pyenv/shims/python3",
"args": [
"/Users/wuxian/Desktop/codes/mcp-hello-py/src/server.py"
]
}
}
}2️⃣ 远程 HTTP 模式配置
适用于服务器部署在局域网或公网的情况,通过 HTTP 连接:
{
"mcpServers": {
"mcp-hello-remote": {
"url": "http://192.168.100.5:8080/mcp"
}
}
}注意:请将
http://192.168.100.5:8080/mcp替换为你实际的服务器地址。
📡 传输模式
模式 | 使用场景 | 端点 |
stdio | Claude Desktop, MCP Inspector | stdin/stdout |
Streamable HTTP | Cloud Run, Web |
|
🏗️ 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 |
|
|
|
|
1️⃣ 初始化 MCP 服务器
Method:
POSTURL:
http://localhost:8080/mcpBody (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": "John"}
}
}响应示例:
{
"jsonrpc": "2.0",
"id": 3,
"result": {
"content": [{"type": "text", "text": "Hello, John!"}]
}
}4️⃣ say_hello_multiple 调用
{
"jsonrpc": "2.0",
"id": 4,
"method": "tools/call",
"params": {
"name": "say_hello_multiple",
"arguments": {"names": ["John", "Jane", "Bob"]}
}
}响应示例:
{
"jsonrpc": "2.0",
"id": 4,
"result": {
"content": [{"type": "text", "text": "• Hello, John!\n• Hello, Jane!\n• Hello, Bob!"}]
}
}☁️ 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 |
|
| 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 |
| 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 |
| 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
📖 参考
📄 许可证
MIT License
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