153 APIs you can call right now without any API key

We tested every single one. These 153 APIs are callable through the apitree proxy right now with just your apitree token. No provider signup, no API key management, no rate limit configuration. Just call.

Why this matters

Most API marketplaces list APIs but require you to sign up with each provider separately. apitree pre-verifies connections. “Live” means we’ve confirmed a successful proxy round-trip in the last 7 days.

Categories available now

• Weather: Open-Meteo (global forecast, hourly, 10km resolution)
• Crypto: CoinGecko (10K+ coins), CoinPaprika, CoinStats
• Finance: Exchange rates (170+ currencies), US Fed FRED, ECB, Eurostat
• Science: NASA APOD, SpaceX launches, USGS earthquakes, CERN OpenData
• Knowledge: Wikipedia, OpenLibrary, Wiktionary, Chinese Text Project
• Health: openFDA drugs, clinical trials
• Fun: Rick & Morty, PokéAPI, cat facts, Chuck Norris jokes
• Dev tools: httpbin, JSDelivr, Stack Exchange, GitHub public
• Government: US Census, World Bank, Canada, Australia, NYC, Toronto open data

Try it now

curl "https://apitree.ai/api/v1/proxy/open-meteo-forecast?latitude=37.5&longitude=127&current=temperature_2m" \
  -H "Authorization: Bearer YOUR_TOKEN"

Get your free token at apitree.ai/signup — no credit card required.

Full list: check the catalog with “Live Only” filter enabled, or visit our interactive demo to try before signing up.