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flaky API vs TestingAPIs API

Two free Test Data APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

  • Choose flaky API if its data fits your use case better; on access and reliability it's level with TestingAPIs API.
  • Choose TestingAPIs API if you want faster responses.

Side by side

flaky APITestingAPIs API
What it doesFake REST API with chaos controls: force any status code, add latency, or a failure rate.Free fake REST API with products, posts, todos, any HTTP status code and request echo.
Providerflakytestingapis.com
API keyNot neededNot needed
HTTPSYesYes
CORS (browser calls)YesYes
Status todayOnline · 1050 msOnline · 642 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
flaky docs ↗TestingAPIs docs ↗

About each API

flaky logoflaky API

Fake REST API with chaos controls: force any status code, add latency, or a failure rate.

Real data at real URLs, like every other fake API. The difference: you decide how it behaves. Force a 503, add latency, or make a third of requests fail — from the query string.

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

TestingAPIs logoTestingAPIs API

Free fake REST API with products, posts, todos, any HTTP status code and request echo.

Documentation for the free testingapis.com fake REST API: 360 endpoints with realistic JSON, test credentials for every auth scheme, pagination, errors and examples.

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (both qualify).
  • Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
  • Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
  • Still unsure? Both are free to try: send one request to each and compare the data you get back.

flaky vs TestingAPIs FAQ

Do flaky API and TestingAPIs API need an API key?

Neither needs an API key; you can call both straight away.

More comparisons

flaky API alternatives · TestingAPIs API alternatives · best Test Data APIs