Every API You Need, Completely Free
Discover 500+ free APIs for your next project. Weather, AI, translation, payments — all documented and ready to use.
# Check API status
curl https://freeapitools.dev/api/v1/status
# Register for free key (instant, no email needed)
curl -X POST https://freeapitools.dev/api/v1/register \
-H "Content-Type: application/json" \
-d '{"app_name": "my-project", "platform": "node"}'
# Try the Weather API
curl "https://freeapitools.dev/api/v1/weather?city=London" Popular Free APIs
Production-ready APIs with generous free tiers
WeatherStack
WeatherReal-time weather data for any location. 1000 free requests/month.
https://api.freeapitools.dev/v1/weather TranslateAI
AI / NLPNeural machine translation for 100+ languages. Free tier: 500K chars/month.
https://api.freeapitools.dev/v1/translate ImageGen Pro
AI / ImagesGenerate images from text prompts. Stable Diffusion XL. 50 free images/day.
https://api.freeapitools.dev/v1/images/generate EmailVerify
ValidationValidate email addresses in real-time. Check MX, disposable, role-based.
https://api.freeapitools.dev/v1/email/verify GeoLocate
LocationIP geolocation and reverse geocoding. 10K free lookups/month.
https://api.freeapitools.dev/v1/geo SentimentAI
AI / NLPAnalyze text sentiment and emotions. Returns polarity score + emotions.
https://api.freeapitools.dev/v1/sentiment Why Developers Choose Us
Lightning Fast
Average response time under 100ms. Built on edge infrastructure worldwide.
Free Forever
Generous free tiers on every API. No credit card required to get started.
Developer First
Clean REST APIs, comprehensive docs, SDKs for every major language.
99.9% Uptime
Enterprise-grade reliability backed by our uptime SLA guarantee.
FAQ
Are these APIs really free?
Yes! Every API has a generous free tier. We sustain this through optional paid plans for high-volume users.
Do I need an API key?
Most APIs work with just a free API key. Sign up to get yours instantly — no credit card required.
What are the rate limits?
Free tier limits vary by API. Most offer 1,000-10,000 requests per month. See each API's documentation for details.
Can I use these in production?
Absolutely. Our APIs are production-ready with 99.9% uptime SLA on all plans, including free.
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