A runaway agent loop can turn a $0.02 LLM call into a four-figure bill overnight — and provider dashboards only tell you after the money is gone. ShipSafe is a FastAPI starter with LLM cost guardrails baked in: per-API-key daily/monthly caps, hard cutoffs (HTTP 402) when a key blows its budget, and a kill switch that freezes all spend in seconds. $49 presale, fully refundable, applied to the $249 launch price. Live demo: https://shipsafe-guardrail-simul...