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MCP - Model Context Protocol

MCP - Model Context Protocol

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github.com/AdiGo22Media & Design0Updated 80w ago
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About MCP - Model Context Protocol

This TypeScript project, compiled to JavaScript, is an MCP server for US weather data. MCP clients can use its two tools to retrieve forecasts and weather alerts for US locations.

Key features

  1. 01Retrieve US weather forecasts
  2. 02Retrieve US weather alerts
  3. 03Validate data with Zod
  4. 04Compile TypeScript to JavaScript

Use cases

  1. 01Get a forecast for a US location
  2. 02Check weather alerts in the US
  3. 03Access weather data from an MCP client

MCP support

The MCP server communicates with Claude Desktop over stdio and exposes tools for weather forecasts and alerts.

#javascript#weather#typescript#ai#mcp#ml#generative-ai#claude-ai#mcp-server

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

No install method listed yet

We haven’t collected a package or remote endpoint for this server. Follow the instructions in the project README.

Repository

Tools

No tool list yet

Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.

Details

From the project README

MCP - Model Context Protocol

About MCP

The Model Context Protocol (MCP) is an open standard that enables developers to build secure, two-way connections between their data sources and AI-powered tools. The architecture is straightforward: developers can either expose their data through MCP servers or build AI applications (MCP clients) that connect to these servers.

👉 Learn more

MCP follows a client-server architecture where a host application can connect to multiple servers.

Architecture

src/ → TypeScript source
build/ → Compiled JavaScript


```bash
weather/
├── src/        # TypeScript source
│   └── index.ts
├── build/      # Compiled JavaScript
│   └── index.js
├── tsconfig.json
└── package.json
src/ Directory (TypeScript Source)

Purpose:

  • Contains development-time code written in TypeScript
  • You implement MCP protocol handlers here (Resources, Tools, Prompts)
  • Also contains logic, type definitions, SDKs, etc.

Key Files:

  • index.ts → Entry point for your MCP server
  • MCP concepts:
    • resources/ → MCP Resource implementations
    • tools/ → LLM-callable functions
    • prompts/ → Prompt templates / management
build/ Directory (Compiled JavaScript)

Purpose:

  • Holds runtime code after TS compilation
  • This is the folder Claude Desktop interacts with via:
    node build/index.js

Traits:

  • Compiled, production-ready JavaScript
  • No TS needed after this stage
  • Clean deployable output

⚙️ Data Flow Pipeline

graph LR
    A[Developer Writes TS Code] --> B[src/index.ts]
    B --> C[TypeScript Compiler tsc]
    C --> D[build/index.js]
    D --> E[Node.js Runtime]
    E --> F[Claude Desktop IPC]

What Happens After index.js

Once your index.js is ready, it flows like this:

Claude Desktop ↔ stdio ↔ Server Transport ↔ McpServer ↔ Tools (1)

Comments

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New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.