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Model Context Protocol (MCP)

Model Context Protocol (MCP) is a protocol that allows you to create agents that can interact with each other.

What is MCP?

MCP is a protocol that allows you to create agents that can interact with each other.

mcp

Installation

$ npm install

install node

$ npm install -g @nestjs/cli

if use nvm multi-version

$ nvm use 18

Created mcp-server

Create a new directory for our project

mkdir products cd products

Initialize a new npm project

npm init -y

Install dependencies

npm install @modelcontextprotocol/sdk zod npm install -D @types/node typescript

Create our files

mkdir src touch src/index.ts

Update your package.json file

{
  "type": "module",
  "bin": {
    "weather": "./build/index.js"
  },
  "scripts": {
    "build": "tsc && chmod 755 build/index.js"
  },
  "files": [
    "build"
  ],
}

Create new file tsconfig.json

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "Node16",
    "moduleResolution": "Node16",
    "outDir": "./build",
    "rootDir": "./src",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true
  },
  "include": ["src/**/*"],
  "exclude": ["node_modules"]
}

In file index.ts

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";

const server = new McpServer({
    name: "products",
    version: "1.0.0",
});


server.tool("fetch-product", "Get product model", async (input) => {
    const product = [
        {
            "title": "Iphone 14",
            "brand": "Apple",
            "model": "Iphone 14",
            "color": "red",
        },
        {
            "title": "Iphone 14 Pro",
            "brand": "Apple",
            "model": "Iphone 14 Pro",
            "color": "black",
        },
        {
            "title": "Iphone 13 Pro Max",
            "brand": "Apple",
            "model": "Iphone 13 Pro Max",
            "color": "yellow",
        },
        {
            "title": "Iphone 12 Pro Max",
            "brand": "Apple",
            "model": "Iphone 12 Pro Max",
            "color": "green",
        },
        {
            "title": "Iphone 14 Pro Max",
            "brand": "Apple",
            "model": "Iphone 14 Pro Max",
            "color": "white",
        },
    ];
    return {
        content: [
            {
                type: "text",
                text: JSON.stringify(product),
            }
        ]
    }
});

const transport = new StdioServerTransport();
await server.connect(transport);

Build mcp-server

$ npm run build

Run mcp-server local

$ cd products/src/
$ npx -y @modelcontextprotocol/inspector npx -y tsx index.ts

Click in the Mcp Inspector

🔍 MCP Inspector is up and running at http://127.0.0.1:# 🚀

Press Connect button in the Mcp Inspector and review the mcp configuration.

Finally, you can see the mcp configuration in the Mcp Inspector.

Install mcp-server in IDE Trae and testing functionality.

1.- Open IDE Trae and selected in the right side in the configuration icon selected MCP. 2.- In the List selected "+ Add" button and selected Configuration Manually, then selected "Raw Config (JSON)". 3.- In the Text add new json item example:

{
    "products": {
            "command": "node",
            "args": [
                "[Your-path]/index.js"
            ]
        }
}

4.- Validate and save the configuration. 5.- Create new Agent and selected the MCP configuration.

Finally, you can see the mcp configuration in the IDE Trae. and the testing functionality.

How to use mcp-server in IDE Trae?

In the chat selected @Agent and selected the mcp configuration.

mcp-steps