RandomDog API

Beginner's Pick Animals / No Auth Required Beginner HTTPS CORS

Free to Use

87 A

Metadata Score Metadata estimate · not endpoint-tested

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Overview

RandomDog returns a JSON object with the URL of a random dog image (JPEG, PNG, or GIF) sourced from user-submitted photos on random.dog. Beginners love it because getting a dog photo on screen takes just two lines of code — fetch the JSON, then set an img src to the "url" field. It requires no API key and is reliable enough for portfolio projects.

Beginner Tip

The JSON response contains a "url" field — use response.url to get the image address, then set document.getElementById("dog").src = response.url to display it instantly.

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.

random dog image URLs

breed and sub-breed lists

breed-specific images

randomly generated data

customizable output format

Use case: Integrate random pictures of dogs 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

{
  "message": "https://images.dog.ceo/breeds/retriever-golden/n02099601_1.jpg",
  "status": "success"
}

Field Reference

url Direct URL to a random dog image or video file — use as img src or video src.

fileSizeBytes File size of the image in bytes — useful for filtering out very large files before displaying.

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

Request

const url = "https://random.dog/";
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.

Broken image or unexpected video file The API occasionally returns .mp4 video files or large GIFs that do not display in an img tag

✓ Check that the URL ends in .jpg or .png before assigning to img src; if not, fetch again

TypeError: Cannot read property "url" of undefined Not awaiting the .json() call before accessing the field

✓ Make sure to await both fetch() and .json(): const data = await (await fetch(url)).json()

CORS error on local file Opening the HTML file directly from disk (file://) instead of a server

✓ Serve your HTML through a local dev server such as VS Code Live Server or python -m http.server

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

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