Mini-CP (Mini Context Protocol)

A minimal and educational implementation of a protocol inspired by the Model Context Protocol (MCP), built using Node.js and Express.js.

This project currently supports basic JSON-RPC 2.0 calls, tool execution, and schema validation using ajv.

What it Does (So Far)

• Parses JSON-RPC 2.0 requests
• Executes tool functions based on method names
• Validates input params using JSON Schema (ajv)
• Returns standard JSON-RPC error/success responses

How to Run Locally

1. Clone the repository

   git clone [https://github.com/your-username/mini-cp.git](https://github.com/atharvmalve/MiniContextProtocol.git)
   cd mini-cp

2. Install dependencies

   npm install

3. Start the server

   npm run dev

4. Test with curl (bash example)

   curl -X POST http://localhost:3000/rpc \
     -H "Content-Type: application/json" \
     -d '{ "jsonrpc": "2.0", "method": "greet", "params": { "name": "World!" }, "id": 1 }'

What’s Coming Next?

• Dynamic tool registration from manifest
• Full tool metadata descriptions
• Session/context management
• Chained tool execution (tool → tool)
• Better developer ergonomics

Inspired by

• Model Context Protocol (MCP)

Contributions

This is a solo project for now, built to learn and experiment publicly.

Feel free to fork and mess around with it!