Yes No

API

Free API for random yes/no responses with visual assets

Overview

The Yes No API offers a simple GET endpoint at https://yesno.wtf/api to generate random binary yes/no decisions. It returns JSON data containing an 'answer' field (either 'yes' or 'no'), a 'forced' boolean (indicating if the response was manually set), and an 'image' URL for a related visual. Ideal use cases include testing app decision flows, creating mock data for prototypes, adding randomness to quizzes/games, or generating demo content for tools needing binary choices. No authentication is required, making integration quick and straightforward for any project.

Example Integration (JavaScript)

script.js JS


fetch('https://yesno.wtf/api')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful GET endpoint
JSON response format
No authentication required
Includes visual image URLs
Random binary decision generation

Frequently Asked Questions

? Is the Yes No API free to use?

Yes, the API is completely free with no usage restrictions or hidden costs.

? Does it require an API key?

No, authentication is not needed—you can call the endpoint directly without any API key.

? What is the response format?

Responses are in JSON, including 'answer' (yes/no), 'forced' (boolean), and 'image' (URL to a relevant visual).

Top Alternatives

Random.org Binary Decision API Search Google

Mockaroo Test Data API Search Google

Tool Info

Pricing Free

Category Test Data

Platform Public API

Pros

⊕ Zero setup needed
⊕ Fast response times
⊕ Free for unlimited use
⊕ Visual assets enhance user experience

Cons

⊖ Limited to yes/no responses only
⊖ No option to adjust probability of outcomes
⊖ Potential rate limits for high-volume usage