Run Synth Server

The MCP Synth Server is a FastAPI application that exposes tools for generating synthetic airline data, inspecting models, previewing data, and exporting archives.

Prerequisites

1. Python environment must be active: The .venv environment should be activated.

2. Dependencies installed: uvicorn and fastapi must be installed (included in dev dependencies).

   Verify with:

   python -c "import uvicorn; import fastapi; print('OK')"
   

   If not installed, run from airline-discount-ml/:

   pip install -e ".[dev]"
   

Standard Server Start Procedure

Run the following commands in order:

1. Navigate to Project Root:

   cd airline-discount-ml
   

2. Start the Server (Background Mode - Recommended):

   Use nohup to run the server in the background so it persists when new terminal commands are run:

   nohup uvicorn src.mcp_synth.server:app --host 127.0.0.1 --port 8010 --reload > synth_server.log 2>&1 &
   

   This will:

   • Run the server in the background (&)
   • Keep it running even after terminal commands (nohup)
   • Log output to synth_server.log

   Alternative: Foreground Mode (blocks terminal):

   uvicorn src.mcp_synth.server:app --host 127.0.0.1 --port 8010 --reload
   

   Options:

   • --host 127.0.0.1: Bind to localhost only (safe for development)
   • --port 8010: Default port (change if occupied)
   • --reload: Auto-reload on code changes (development mode)

   Production mode (no auto-reload):

   nohup uvicorn src.mcp_synth.server:app --host 0.0.0.0 --port 8010 > synth_server.log 2>&1 &
   

3. Verify Server is Running:

   curl http://127.0.0.1:8010/healthz
   

   Expected response: {"status":"ok"}

   Check version:

   curl http://127.0.0.1:8010/version
   

   View server logs:

   tail -f synth_server.log
   

Available Endpoints

Stopping the Server

• Press Ctrl+C in the terminal running the server
• Or find and kill the process: lsof -i :8010 | awk 'NR>1 {print $2}' | xargs kill

Troubleshooting