Overview

Yes No is a fun, no-auth-required API that returns a random yes or no answer along with a GIF image. It is perfect for beginners learning how to make HTTP requests and parse JSON responses. Use it to add playful decision-making or random outcomes to any project.

Beginner Tip

No API key needed — just send a GET request and you get a JSON response immediately. Try it in your browser by pasting https://yesno.wtf/api directly into the address bar.

Available Data

The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.

randomly generated data
customizable output format
Use case: Integrate generate yes or no randomly data into web and mobile applications

Example Response

Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.

JSON Response · Illustrative
{
  "status": "success",
  "data": {
    "result": "Data from Yes No",
    "description": "Generate yes or no randomly",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

answer The random decision — either "yes" or "no"
forced Whether the answer was forced by a query parameter rather than random
image URL of a GIF image that visually represents the yes or no answer

Implementation Example

Request skeleton. The URL below is this API's documentation page, not a live endpoint — swap in the path you need from the provider's docs before running it.

Request
const url = "https://yesno.wtf/api";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.

Empty or unexpected response The server occasionally returns an animation GIF URL that is temporarily unavailable
Check the "answer" field first; ignore the image field if it returns a 404
CORS error in browser fetch Browser security policy blocks direct cross-origin requests from some setups
Call the API from a backend or use a CORS proxy during development
TypeError: Cannot read property of undefined Trying to access response fields before the fetch Promise resolves
Always await the response and call .json() before accessing fields like response.answer

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS UNKNOWN
Category Test Data
Difficulty Beginner
Listing details not endpoint-verified

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