FREE TOOLS

Tools for people building on LLM APIs

Free, no sign-up, kept current. We build these because we live in the same stack you do — ReqKey meters AI usage per API key for a living.

On the bench: a token cost calculator, an ideal-model selector, and a model release tracker. Want one sooner? Tell us which.

THE TOOL BEHIND THE TOOLS

Meter AI usage per API key — credits, limits, and live spend.