MCP Playground
A demonstration MCP server supporting both Stdio and SSE transports, providing example tools (echo, add, time, UUID generation) and resources for learning and testing MCP implementations.
README
MCP Playground
MCP (Model Context Protocol) server với hỗ trợ cả hai phương thức transport:
- Pure MCP SDK (Stdio) - Standard input/output transport
- SSE Transport (Server-Sent Events) - HTTP-based transport
Tính năng
- ✅ Hỗ trợ Pure MCP SDK với Stdio transport
- ✅ Hỗ trợ SSE (Server-Sent Events) transport
- ✅ Các công cụ (tools) ví dụ: echo, add, get_time, generate_uuid
- ✅ Các tài nguyên (resources) ví dụ: server info, example data
- ✅ TypeScript với type safety đầy đủ
- ✅ Development mode với hot reload
Cài đặt
npm install
Sử dụng
1. Stdio Transport (Pure MCP SDK)
Chạy server với stdio transport:
# Development mode
npm run dev
# Production mode
npm run build
npm start
Server sẽ giao tiếp qua stdin/stdout, phù hợp cho việc tích hợp với Claude Desktop hoặc các MCP clients khác.
Cấu hình cho Claude Desktop
Thêm vào file cấu hình Claude Desktop (claude_desktop_config.json):
{
"mcpServers": {
"mcp-playground": {
"command": "node",
"args": ["/path/to/mcp-playground/dist/index.js"]
}
}
}
Hoặc trong development mode:
{
"mcpServers": {
"mcp-playground": {
"command": "npx",
"args": ["tsx", "/path/to/mcp-playground/src/index.ts"]
}
}
}
2. SSE Transport (Server-Sent Events)
Chạy server với SSE transport:
# Development mode
npm run dev:sse
# Production mode
npm run build
npm run start:sse
Server sẽ chạy trên http://localhost:3000 với các endpoints:
GET /health- Health checkGET /sse- SSE connection endpointPOST /messages- Client message endpoint
Kết nối với SSE Client
Sử dụng MCP Client để kết nối:
import { Client } from "@modelcontextprotocol/sdk/client/index.js";
import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js";
const transport = new SSEClientTransport(
new URL("http://localhost:3000/sse")
);
const client = new Client(
{
name: "example-client",
version: "1.0.0",
},
{
capabilities: {},
}
);
await client.connect(transport);
API
Tools (Công cụ)
echo
Phản hồi lại tin nhắn được gửi.
Input:
{
"message": "Hello, World!"
}
Output:
Echo: Hello, World!
add
Cộng hai số với nhau.
Input:
{
"a": 5,
"b": 3
}
Output:
5 + 3 = 8
get_time
Trả về thời gian hiện tại của server.
Input:
{}
Output:
Current server time: 2024-01-15T10:30:00.000Z
generate_uuid (chỉ SSE)
Tạo UUID ngẫu nhiên.
Input:
{}
Output:
Generated UUID: 123e4567-e89b-12d3-a456-426614174000
Resources (Tài nguyên)
info://server
Thông tin về MCP server.
data://example
Dữ liệu JSON ví dụ.
stats://connections (chỉ SSE)
Thống kê kết nối.
Cấu trúc dự án
mcp-playground/
├── src/
│ ├── index.ts # Stdio transport server
│ └── sse-server.ts # SSE transport server
├── dist/ # Compiled JavaScript
├── package.json
├── tsconfig.json
└── README.md
Development
# Build project
npm run build
# Watch mode (auto rebuild)
npm run watch
# Run stdio server in dev mode
npm run dev
# Run SSE server in dev mode
npm run dev:sse
Kiểm thử
Test Stdio Transport
# Chạy server
npm run dev
# Gửi JSON-RPC request qua stdin (trong terminal khác)
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | npm run dev
Test SSE Transport
# Chạy server
npm run dev:sse
# Test health endpoint
curl http://localhost:3000/health
# Test SSE endpoint (trong browser hoặc với curl)
curl -N http://localhost:3000/sse
Tài liệu tham khảo
License
MIT
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