Over 1,426 APIs cataloged

Find the Perfect API for Your Next Project

The only API directory with independently measured Matrix Scores — reliability, speed, security & developer experience tested for every API.

Zero-Config APIs

Perfect for prototypes. No authentication required.

Axolotl

⭐ Beginner's Pick
84

Axolotl API returns random photos and fun facts about axolotls (aquatic salamanders).

No Auth Beginner HTTPS 116ms

Cat Facts

⭐ Beginner's Pick
92

Cat Facts delivers random, verified facts about cats via a simple REST API.

No Auth Beginner HTTPS 39ms

Cataas

0

Cataas provides programmatic access to cat as a service (cats pictures and gifs) via REST API.

No Auth Beginner HTTPS 425ms

Dog Facts

⭐ Beginner's Pick
92

Dog Facts API returns random interesting facts about dogs as plain JSON.

No Auth Beginner HTTPS 38ms

Dog Facts

⭐ Beginner's Pick
92

This Dog Facts API returns random dog facts in clean JSON with no API key required.

No Auth Beginner HTTPS 31ms

Dogs

⭐ Beginner's Pick
57

The Dog CEO API serves random dog images from the Stanford Dogs Dataset, organized by breed.

No Auth Beginner HTTPS 255ms

FishWatch

⭐ Beginner's Pick
74

FishWatch by NOAA provides sustainability data, habitat info, and images for US fish species.

No Auth Beginner HTTPS 4386ms

HTTP Cat

⭐ Beginner's Pick
92

HTTP Cat returns a cat-themed image for any HTTP status code via a simple URL pattern.

No Auth Beginner HTTPS 48ms

HTTP Dog

⭐ Beginner's Pick
92

HTTP Dog serves a photo of a dog for every HTTP status code (200, 404, 500, etc.), making it easy to visualize API responses in a fun way.

No Auth Beginner HTTPS 65ms

MeowFacts

⭐ Beginner's Pick
84

MeowFacts returns random, verified facts about cats such as their sleep habits, hunting instincts, and biological quirks.

No Auth Beginner HTTPS 91ms

Movebank

92

Movebank is a global database of animal movement and migration tracking data collected by GPS tags and sensors attached to wild animals worldwide.

No Auth Beginner HTTPS 50ms

PlaceBear

⭐ Beginner's Pick
92

PlaceBear generates placeholder bear images at any pixel dimensions you specify, making it easy to fill wireframes and mockups with visually interesting content during development.

No Auth Beginner HTTPS 192ms

API Recipes

All Recipes →

Getting Started

All Tutorials →