RescueGroups API alternatives
Adoption. A free animals API by RescueGroups.org. If it doesn't fit your project, here are the 10 best free Animals APIs to use instead in 2026, out of 23 in the directory.
For reference, RescueGroups API: No API key needed · HTTPS.
- 1

Dog Facts API
Online · 342 msRandom dog facts. A free animals API by dukengn.github.io.
- No API key needed
- Fast: 342 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 2

Dog Facts API
Online · 356 msRandom facts of Dogs. A free animals API by Dog API by kinduff.
- No API key needed
- Fast: 356 ms response
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 3

Cat Facts API
Online · 556 msRandom cat facts. A free animals API by Cat Facts API.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 4

Dogs API
Online · 523 msBased on the Stanford Dogs Dataset.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 5

HTTP Cat API
Online · 683 msCat for every HTTP Status.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 6
HTTP Dog API
Online · 779 msDogs for every HTTP response status code.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 7
PlaceDog API
Online · 860 msPlaceholder Dog pictures. A free animals API by place.dog.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 8
RandomDog API
Online · 1405 msRandom pictures of dogs. A free animals API by random.dog.
- No API key needed
- Returns JSON at its URL
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS - 9

Cat Facts API
Online · 281 msDaily cat facts. A free animals API by cat-facts.
- No API key needed
- Fast: 281 ms response
- HTTPS
No authHTTPSNo CORS - 10
FishWatch API
Online · 2075 msInformation and pictures about individual fish species.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
RescueGroups API vs alternatives
| API | API key | HTTPS | CORS | Uptime | Response | Rating |
|---|---|---|---|---|---|---|
| No | Yes | Unknown | Up | 2462 ms | Not rated | |
| No | Yes | Yes | Up | 342 ms | Not rated | |
| No | Yes | Yes | Up | 356 ms | Not rated | |
| No | Yes | Yes | Up | 556 ms | Not rated | |
| No | Yes | Yes | Up | 523 ms | Not rated | |
| No | Yes | Yes | Up | 683 ms | Not rated | |
| No | Yes | Yes | Up | 779 ms | Not rated | |
| No | Yes | Yes | Up | 860 ms | Not rated | |
| No | Yes | Yes | Up | 1405 ms | Not rated |
See also: best Animals APIs · all Animals APIs
RescueGroups API alternatives FAQ
What is the best free alternative to the RescueGroups API in 2026?
The top-ranked free alternatives to the RescueGroups API are Dog Facts API, Dog Facts API and Cat Facts API, all in the Animals category. Rankings combine access (API key, HTTPS, CORS), daily uptime checks and developer ratings.
Is there a RescueGroups API alternative I can call from the browser?
Dog Facts API, Dog Facts API and Cat Facts API support CORS, so front-end JavaScript can call them directly.
How many Animals APIs are similar to the RescueGroups API?
The directory lists 23 other free Animals APIs. This page compares the top ones side by side.