500+ Free APIs — No Credit Card Required

Every API You Need, Completely Free

Discover 500+ free APIs for your next project. Weather, AI, translation, payments — all documented and ready to use.

Try it now — no signup required:
# 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

Weather

Real-time weather data for any location. 1000 free requests/month.

https://api.freeapitools.dev/v1/weather

TranslateAI

AI / NLP

Neural machine translation for 100+ languages. Free tier: 500K chars/month.

https://api.freeapitools.dev/v1/translate

ImageGen Pro

AI / Images

Generate images from text prompts. Stable Diffusion XL. 50 free images/day.

https://api.freeapitools.dev/v1/images/generate

EmailVerify

Validation

Validate email addresses in real-time. Check MX, disposable, role-based.

https://api.freeapitools.dev/v1/email/verify

GeoLocate

Location

IP geolocation and reverse geocoding. 10K free lookups/month.

https://api.freeapitools.dev/v1/geo

SentimentAI

AI / NLP

Analyze 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.

Start Building for Free

Get your API key in seconds. No credit card, no limits on experimentation.

Get Started — It's Free