Your vibe-coded app has no rate limiting. I built the missing backend in one API

Lovable, Bolt, v0, and Cursor will happily generate you a beautiful app that calls OpenAI on every button click - with no API keys for your users, no rate limiting, no usage metering, and raw LLM text going straight into JSON.parse(). That works right up until you get your first real user (or your first $400 OpenAI bill).

I built VibeGuard for exactly this: the backend plumbing AI code generators never write for you, as one API you call from the frontend-ish code you already have.

The one-call gate

Before your app does anything expensive, ask VibeGuard if this user is allowed to:

curl -X POST "https://vibeguard-api-keys-rate-limits-llm-guard.p.rapidapi.com/verify" \