简单 MCP

用于创建MCP （模型上下文协议）服务器的简单 TypeScript 库。

特征

简单的 API ：使用最少的代码创建 MCP 服务器
类型安全：完全 TypeScript 集成
参数验证：使用 Zod 内置验证
MCP 兼容：完全实现模型上下文协议

安装

npm install simple-mcp

快速入门

import { McpServer } from 'simple-mcp';
import { z } from 'zod';

// Create a server instance
const server = new McpServer({ name: 'my-server' });

// Register the tool with the server
server.tool({
  name: 'greet',
  parameters: {
    name: z.string().describe('Person\'s name')
  },
  execute: async ({ name }) => {
    return {
      content: [
        {
          type: 'text',
          text: `Hello, ${name}! Nice to meet you.`
        }
      ]
    };
  }
});

// Start the server
server.start({ transportType: 'stdio' });

基于类的实现

您还可以使用类来实现 MCP 工具：

import { McpServer, type McpTool } from 'simple-mcp';
import { z, ZodObject } from 'zod';

const parameters = {
  name: z.string().describe('The name is required'),
};

class GreetTool implements McpTool<typeof parameters> {
  public readonly name = 'greet';
  public readonly parameters = parameters;

  public async execute({ name }: z.infer<ZodObject<typeof this.parameters>>) {
    return {
      content: [
        {
          type: 'text',
          text: `Hello, ${name}! Nice to meet you.`,
        },
      ],
    };
  }
}

// Initialize a new MCP server with the name 'greet-server'
const server = new McpServer({ name: 'greet-server' });

// Create an instance of the GreetTool class
const greetTool = new GreetTool();

// Register the tool with the server
server.tool(greetTool);

// Start the server using stdio as the transport method
server.start({ transportType: 'stdio' });