Compare APIs side by side

Pick two to eight APIs and see pricing, auth, CORS, rate limits, live health, and trust signals next to each other.

Build a comparison

Pick 2–8 APIs. The result URL is shareable.

No APIs selected yet.

Try a live example: Open-Meteo API vs OpenWeatherMap.

How Reqistry comparisons work

Every comparison uses the same recorded fields — pricing model, authentication, CORS status, rate limits, response time, 30-day uptime, and trust score — so unlike APIs are judged on consistent criteria.

Trust claims below 60% confidence are labelled, and missing evidence is shown as unknown rather than guessed.

120 ready-made comparisons

Development

AI

Cloud Infrastructure

Security

Maps & Location

Open Data

Games & Comics

Government

Browse the full catalog in API categories.