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Free Animals APIs

The classics — every image endpoint verified to still return an actual dog. 16 of 16 on our probe schedule.

16In catalog16Probed by us13Healthy now3Degraded / dying559msMedian P50100.0%Median uptime · 30d
HTTP DogAnimalsEvery HTTP status code described in JSON, with dog picsHEALTHYauth noneAnimalsHEALTHY100%57 msnone43 min agoDog CEOAnimals20,000+ open-source dog photos by breed.HEALTHYauth noneAnimalsHEALTHY100%220 msnone43 min agoCat FactsAnimalsRandom feline trivia served as tidy JSONHEALTHYauth noneAnimalsHEALTHY99.04%259 msnone43 min agoRandomDogAnimalsA random dog media URL wrapped in JSONHEALTHYauth noneAnimalsHEALTHY100%307 msnone43 min agoRandomDuckAnimalsA random duck picture URL on every requestHEALTHYauth noneAnimalsHEALTHY100%457 msnone12h agoExtinct Animals APIAnimalsExtinct Animals API — This API provides information about animals that became…HEALTHYauth noneAnimalsHEALTHY100%560 msnone8h agoPlaceDogAnimalsPlaceholder dog picturesHEALTHYauth noneAnimalsHEALTHY97.1%410 msnone6h agoMeowFactsAnimalsRandom cat facts as JSON, one or many at a timeHEALTHYauth noneAnimalsHEALTHY100%558 msnone12h agoRescueGroupsAnimalsRescueGroups — keyless JSON APIHEALTHYauth noneAnimalsHEALTHY97.1%653 msnone12h agoxeno-cantoAnimalsxeno-canto — Bird recordingsHEALTHYauth noneAnimalsHEALTHY100%750 msnone10h agoRandomFoxAnimalsOne random fox photo URL per callHEALTHYauth noneAnimalsHEALTHY97.1%672 msnone12h agoDog Facts (kinduff)AnimalsRandom dog facts as JSONDYINGauth noneAnimalsDYING89.4%641 msnone12h agoSTAPIAnimalsStar Trek database APIHEALTHYauth noneAnimalsHEALTHY100%1001 msnone12h agoCataasAnimalsCat as a service: random cat pics, gifs and metadataHEALTHYauth noneAnimalsHEALTHY100%532 msnone12h agoOpen Dog RegistryAnimalsOpen Dog Registry — free tier with API keyDYINGauth apiKeyAnimalsDYING40.4%2963 msapiKey5h agoiNaturalistAnimalsSpecies, observations and photos from iNaturalistDYINGauth noneAnimalsDYING25.0%1140 msnone7h ago
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Free Animals APIs — FAQ

Are there free Animals APIs with no API key?

Yes — 15 of the 16 free animals APIs we list need no API key or signup (HTTP Dog is a good starting point). Use the "No key" filter above to see them; they're the fastest to prototype with.

Which free Animals API is the most reliable?

Of the 16 animals APIs on our probe schedule, HTTP Dog leads on measured uptime (100% over 90 days). Reliability here is verified from our own scheduled checks, not the provider's claims — sort by "Reliable" to rank the rest.

Can I call these Animals APIs from the browser?

10 of these animals APIs send CORS headers over HTTPS, so you can fetch them straight from front-end code — no backend proxy. Filter by "Browser OK" to see them; the rest need a server-side call.

Are these free Animals APIs OK for commercial use?

1 of the 16 animals APIs allow commercial use on the free tier; the rest are unclear or personal-only. We record service terms and the data license as separate fields on every listing — check both before you ship.

How often are these Animals APIs checked?

16 of the 16 animals APIs are on our probe schedule and re-tested every sweep. We log uptime, latency and response-shape changes on each, and move any that stay down to the graveyard so you can see what died and when.