MCP Service Framework

What is MCP Service Framework?

A scalable service framework based on the Model Context Protocol (MCP), providing standardized tool calling interfaces and AI integration. It includes a base service architecture, a weather service implementation example, and an intelligent dialogue processing pipeline.

How to use MCP Service Framework?

Install dependencies (npm install @modelcontextprotocol/sdk express dotenv), configure environment variables (API keys for DeepSeek and a weather service), and start the main service with npm run start:prod. Custom MCP services can be created using the provided service template and integrated into the client.

Key features of MCP Service Framework

• Full MCP protocol Server/Client communication model
• Hot‑pluggable service registration and invocation
• Context‑aware dialogue management with automatic tool calls
• Multi‑turn conversation state retention
• Request retry mechanism (default 3 times) and unified error handling
• Service health monitoring

Use cases of MCP Service Framework

• Querying real‑time weather via natural language chat (e.g., “北京今天天气如何？”)
• Rapidly extending AI assistants with custom tool services
• Building production‑grade applications that combine AI reasoning with standardized tool calls

FAQ from MCP Service Framework

What dependencies are required?

Node.js, @modelcontextprotocol/sdk, express, and dotenv. API keys for DeepSeek and a weather service are also needed.

How do I create a custom tool service?

Follow the provided template: create a JavaScript file using Server from the MCP SDK, implement ListToolsRequestSchema and CallToolRequestSchema handlers, then integrate it into the client with StdioClientTransport.

What transport protocol is used for service communication?

Stdio transport is used for communication between the MCP Client and MCP Servers.

What is the maximum conversation context length?

The default maximum context length is 5 dialogue turns.

How does error handling and retry work?

The framework includes a request retry mechanism with default intervals of 500 ms, 1000 ms, and 1500 ms (3 attempts). Error codes follow the standard MCP error schema.