Free Animals APIs

The classics — every image endpoint verified to still return an actual dog. 16 of 16 on our probe schedule · 11 probed.

16In catalog11Probed by us1Healthy now0Degraded / dyingMedian P50NaN%Median uptime · 30d
Dog CEOAnimals20,000+ open-source dog photos by breed.HEALTHYauth noneAnimalsHEALTHY—%none2h agoCat FactsAnimalsRandom feline trivia served as tidy JSONUNMONITOREDauth noneAnimalsUNMONITORED—%none2h agoHTTP DogAnimalsEvery HTTP status code described in JSON, with dog picsUNMONITOREDauth noneAnimalsUNMONITORED—%none2h agoRandomDogAnimalsA random dog media URL wrapped in JSONUNMONITOREDauth noneAnimalsUNMONITORED—%none2h agoCataasAnimalsCat as a service: random cat pics, gifs and metadataUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoRandomDuckAnimalsA random duck picture URL on every requestUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoRandomFoxAnimalsOne random fox photo URL per callUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoMeowFactsAnimalsRandom cat facts as JSON, one or many at a timeUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoDog Facts (kinduff)AnimalsRandom dog facts as JSONUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoRescueGroupsAnimalsRescueGroups — keyless JSON APIUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoSTAPIAnimalsStar Trek database APIUNMONITOREDauth noneAnimalsUNMONITORED—%none58 min agoxeno-cantoAnimalsxeno-canto — Bird recordingsUNMONITOREDauth noneAnimalsUNMONITORED—%nonejust nowiNaturalistAnimalsSpecies, observations and photos from iNaturalistUNMONITOREDauth noneAnimalsUNMONITORED—%nonejust nowExtinct Animals APIAnimalsExtinct Animals API — This API provides information about animals that became…UNMONITOREDauth noneAnimalsUNMONITORED—%nonejust nowPlaceDogAnimalsPlaceholder dog picturesUNMONITOREDauth noneAnimalsUNMONITORED—%nonejust nowOpen Dog RegistryAnimalsOpen Dog Registry — free tier with API keyUNMONITOREDauth apiKeyAnimalsUNMONITORED—%apiKeyjust now
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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 (Dog CEO 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 11 animals APIs on our probe schedule, Dog CEO leads on measured uptime (—% 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?

12 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.