{"service": "ox402-utils", "version": 4, "tool_count": 40, "price_from": 0.001, "network": "eip155:8453", "asset": "USDC", "pay_to": "0x7869d1fe2d1de863b6fae4594d392343a69ed8e3", "endpoints": {"catalog": "/catalog", "health": "/health", "call": "/paid/<tool>"}, "usage": "GET /catalog for full schema+samples; POST /paid/<tool>; first 5 calls/IP free (gen-3d always paid)"}