Dog Facts vs Dogs

This project ("Dog API by kinduff") started in 2016 as a small Sinatra service at dog-api.kinduff.com; that original endpoint is now broken — it responds but always returns an empty fact list — and has been superseded by a rebuilt V2 API at dogapi.dog, which is what backs this entry now. The live JSON:API-formatted /api/v2/facts endpoint returns one or more random dog facts with no signup or key required. It also documents over 340 dog breeds and 20 breed groups; the maintainer funds hosting through voluntary Buy Me a Coffee donations rather than a paid tier.

The Dog CEO API serves random and breed-filtered dog images sourced from the Stanford Dogs Dataset plus community submissions, returning a direct image URL as JSON rather than the binary file itself. A live call to its breed list returns 108 main breeds and 99 named sub-breeds (42 of the mains have sub-breeds), giving 207 callable breed image paths across 165 leaf-level breed collections, each queryable via dedicated endpoints (e.g. /breed/hound/images/random), and it needs no signup or API key. The project is open-source with no pricing tier of any kind; hosting is covered by on-site ads plus voluntary PayPal donations.