How to Choose the Best Test Data API in 2026

There are 25 Test Data APIs in our directory. Of these, 14 require no authentication, making them ideal for quick prototyping. 14 are rated beginner-friendly.

Scores last tested: 2026-08-10

Quick Comparison: Top 10 Test Data APIs

Ranked by API Score. Measured means we called a real endpoint of that API; Est. means the score is derived from metadata because the endpoint could not be called without credentials. Discontinued APIs are excluded.

Name	API Score	Auth	HTTPS	CORS	Difficulty
Yes No	95 A+ Est.	No Auth	✓	?	Beginner
English Random Words	90 A+ Est.	No Auth	✓	✗	Beginner
JSONPlaceholder	88 A Measured	No Auth	✗	?	Beginner
UUID Generator	88 A Measured	No Auth	✓	✗	Beginner
Dicebear Avatars	84 A Est.	No Auth	✓	✗	Beginner
FakerAPI	82 A Est.	No Auth	✓	✓	Beginner
Mockaroo	82 A Est.	API Key	✓	?	Intermediate
What The Commit	82 A Est.	No Auth	✗	✓	Beginner
Mailsac	77 B Est.	API Key	✓	?	Intermediate
Metaphorsum	77 B Est.	No Auth	✗	?	Beginner

See all 25 Test Data APIs compared side by side →

Free Test Data APIs (No Auth)

These APIs require no API key or signup. Start using them immediately.

Bacon Ipsum

⭐ Beginner's Pick

69 C

Measured

Bacon Ipsum is a fun lorem ipsum generator that returns meat-themed placeholder text in JSON format.

No Auth Beginner HTTPS 393ms

Dicebear Avatars

⭐ Beginner's Pick

84 A

Est.

Dicebear Avatars is a free API that generates unique, deterministic pixel-art avatars based on a seed string you provide.

No Auth Beginner HTTPS 80ms

English Random Words

⭐ Beginner's Pick

90 A+

Est.

English Random Words API generates random English words along with their pronunciation guides, making it useful for word games, vocabulary apps, and testing text-to-speech features.

No Auth Beginner HTTPS 545ms

FakerAPI

⭐ Beginner's Pick

82 A

Est.

FakerAPI is a free collection of REST endpoints that return realistic fake data including people, companies, addresses, credit cards, and more.

No Auth Beginner HTTPS 719ms

FakeStoreAPI

⭐ Beginner's Pick

47 D

Measured

FakeStoreAPI is a free REST API that simulates an e-commerce backend, providing endpoints for products, carts, and users without any setup.

No Auth Beginner HTTPS 1012ms

ItsThisForThat

⭐ Beginner's Pick

60 C

Measured

ItsThisForThat is a playful API that generates random startup pitch ideas by combining two random concepts in the format "It's X for Y".

No Auth Beginner HTTPS 169ms

View all free Test Data APIs →

Try It in 5 Minutes: Bacon Ipsum

Quick implementation example using Bacon Ipsum.

Using curl

curl "https://baconipsum.com/api/?type=meat-and-filler&paras=2&format=json"

JavaScript

const url = "https://baconipsum.com/api/?type=meat-and-filler&paras=2&format=json";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

New to APIs? Read our Getting Started Guide →

Frequently Asked Questions

How many Test Data APIs are available?

There are 25 Test Data APIs in our directory as of 2026.

Are there free Test Data APIs?

Yes, 14 Test Data APIs require no authentication and are completely free to use.

What is the easiest Test Data API to use?

Bacon Ipsum is one of the easiest to get started with. It is rated as beginner-level and requires no authentication.

Do I need an API key for Test Data APIs?

It depends. 14 APIs need no authentication, 5 require an API key, and 0 use OAuth.

Explore Test Data APIs

Browse All APIs → Side by Side →