MCP

https://bilibili.com/video/BV1qkYpzZEQ8/

⭐ 前置知识

通信方式：stdio

stdio：standard input/output，标准输入输出流。

server.js

process.stdin.setEncoding('utf-8')
process.stdin.on('data', (data) => {
  data = data.replace(/[?？]/g, '').replace(/我/g, '你').replace(/你/g, '我').replace(/吗/g, '')
  const resp = `AI: ${data}\n`
  process.stdout.write(resp)
})

通信格式：JSON-RPC

JSON-RPC：JSON-based Remote Procedure Call，基于 JSON 的远程过程调用协议。

request.json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "greet",
  "params": {
    "name": "Alice"
  }
}

response.json

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "Hello, Alice!"
}

伪代码：

server.js

import utils from './utils.js'

process.stdin.on('data', (data) => {
  const req = JSON.parse(data)
  const funName = req.method
  const params = req.params
  const result = utils[funName](params)
  const resp = {
    jsonrpc: '2.0',
    id: req.id,
    result,
  }
  process.stdout.write(JSON.stringify(resp) + '\n')
})