MCP Add Numbers Server A Model Context Protocol (MCP) server to add two numbers using stdio transport. Installation Install the package globally or use npx: npm install -g @aml-modelcontextprotocol/add-numbers

or npx -y @aml-modelcontextprotocol/add-numbers

Usage

Create a config file (e.g., mcp-config.json) with the following content:

{ "mcpServers": { "sum": { "command": "npx", "args": [ "-y", "@aml-modelcontextprotocol/add-numbers" ] } } }

Run the server using npx:

npx -y @aml-modelcontextprotocol/add-numbers

The server communicates via stdio. To test, use an MCP client (e.g., Claude) with the following JSON-RPC requests:

Initialize: { "jsonrpc": "2.0", "id": 0, "method": "initialize", "params": { "protocolVersion": "2024-11-05", "capabilities": {}, "clientInfo": { "name": "claude-ai", "version": "0.1.0" } } }

Sum: { "jsonrpc": "2.0", "id": 1, "method": "sum", "params": { "a": 5, "b": 3 } }

Response: { "jsonrpc": "2.0", "id": 1, "result": 8 }

Requirements

Node.js v22.15.0 or higher npm

License MIT