facts APIs

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

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

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

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

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

Zoo Animals provides programmatic access to facts and pictures of zoo animals via REST API.

AnimeFacts is a simple REST API with over 100 trivia facts about popular anime series, accessible by an anime slug name.

Random Useless Facts API delivers genuinely true but delightfully pointless facts in JSON or plain text format.

Open Food Facts is a free, community-driven database of food products from around the world, containing nutritional facts, ingredients, allergens, and Eco-scores.

Fun Facts provides programmatic access to random fun facts via REST API.

The Black History Facts API gives you access to one of the largest databases of Black history facts on the web.

The Numbers API from math.tools provides facts, trivia, and mathematical data about numbers — including the number of the day, random numbers, and detailed number properties.

Numbers API (numbersapi.com) returns interesting facts about numbers — mathematical, date-based, year-based, or trivia facts.

Ocean Facts provides programmatic access to facts pertaining to the physical science of oceanography via REST API.