A minimal reference implementation of an MCP server with two basic math tools (add and multiply), designed as a starting point for learning MCP protocol and deploying remote servers to cloud platforms.
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process.env. You'll be asked to provide them before it can run.HOST— Server host (default: 127.0.0.1, use 0.0.0.0 for deployment)PORT— Server port (default: 8000, Railway sets this automatically)UVICORN_HOSTUVICORN_PORT[](https://m8ven.ai/mcp/oleksandrsirenko-mcp-simple-server-x476v0)