Skip to content

Best free APIs

Which free API to use for a given job, chosen with the reliability and latency data from our own daily checks rather than from marketing copy.

22 articles

Roundups

Free image and photo APIs

Placeholder images, stock photography and image processing without a key, and the licensing distinction that decides whether you may host the file yourself.

7 min read

Roundups

Free QR code and barcode APIs

Generating QR codes and barcodes without a key, why you should generate locally rather than hotlink, and the error-correction setting that decides whether a code scans.

7 min read

Roundups

Free email validation APIs

Disposable-address detection and email verification without a key, what validation can and cannot actually prove, and the regex you should stop writing.

6 min read

Roundups

Free government and open-data APIs

Public-sector APIs from the UK, US, Germany and Brazil that need no key, why government data is the most reliable free data available, and how to handle its formats.

7 min read

Roundups

Free stock market and finance APIs

Market data, macroeconomic series and financial utilities without a key, why free equity quotes are always delayed, and what exchange licensing actually forbids.

6 min read

Roundups

Free sports and live-score APIs

Live scores, fixtures and statistics without a key, why 'live' on a free tier usually means delayed, and how to poll a match feed without burning your rate limit.

7 min read

Roundups

Free recipe and nutrition APIs

Food, recipe and nutrition APIs that need no key, why Open Food Facts beats the commercial options for barcode lookup, and the data-quality problem in crowd-sourced nutrition.

7 min read

Roundups

Free jokes, quotes and trivia APIs

Keyless APIs for jokes, quotes and quiz questions, the content-filtering step most projects skip, and why quote attribution is wrong more often than you would expect.

6 min read

Roundups

Free space and astronomy APIs

Satellite tracking, spaceflight news and asteroid data without a key, plus why orbital elements go stale in days and what that means for your code.

7 min read

Roundups

Free music and lyrics APIs

Music metadata and radio APIs that need no key, why lyrics are the hardest thing to get legally, and how MusicBrainz's rate limit differs from everyone else's.

6 min read

Roundups

Free anime and manga APIs

Anime and manga APIs that need no key, how Jikan's rate limit actually works, and the reverse image search that identifies a scene from a screenshot.

7 min read

Roundups

Free movie and TV APIs

Film and television APIs that need no key, why the big metadata providers all require registration, and which fictional-universe APIs are best for building something quickly.

6 min read

Roundups

Free news and headline APIs

News APIs that return headlines without a key, why most free news tiers forbid showing the results publicly, and the licensing question that decides which one you can actually use.

6 min read

Roundups

Free cryptocurrency APIs

Price, market-cap and on-chain APIs that work without a key, how often free tiers actually refresh, and why the price you display will never match the price on an exchange.

6 min read

Roundups

Free mock and test-data APIs

APIs that generate fake users, fake products and deliberately broken responses, so you can build against realistic data and test the failure paths you normally cannot reach.

6 min read

Roundups

Free geocoding and maps APIs

Turning addresses into coordinates without a key, why postcode lookups beat full-address geocoding for accuracy, and the licensing trap in most free geocoders.

7 min read

Roundups

Free IP geolocation APIs

Six IP geolocation APIs that need no key, what accuracy you can actually expect at city level, and why VPNs and mobile networks break the assumption your code is making.

7 min read

Roundups

Free currency exchange rate APIs

Exchange rate APIs that work without a key, including three central banks publishing official reference rates, and what the difference between reference and market rates means for your code.

7 min read

Other categories