HTTP Dog API

⭐ Beginner's Pick Animals / No Auth Required Beginner HTTPS CORS
Free to Use Varies (check documentation)

Overview

HTTP Dog serves a photo of a dog for every HTTP status code (200, 404, 500, etc.), making it easy to visualize API responses in a fun way. Beginners use it to learn HTTP status codes by associating each code with a memorable dog image. It requires no authentication and returns a direct image file.

💡

Beginner Tip

Append the status code as a number to the base URL — for example https://http.dog/200 — and you get a JPEG image of a dog representing that status code.

Available Data

random dog image URLs
breed and sub-breed lists
breed-specific images

Example Response

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

Field Reference

(binary image) The API returns a JPEG image directly, not JSON. Save it to a file or use the URL in an img src attribute.
status code (URL path) The HTTP status code is embedded in the URL path, e.g. /404.jpg for a 404 error dog photo.

Implementation Example

const url = "https://http.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

404 Not Found (image itself) You requested a status code that has no dog photo yet (e.g. an obscure 1xx code)
Stick to common codes like 200, 301, 400, 401, 403, 404, 429, 500, 503
Empty response body You forgot to include the status code in the URL path
Make sure your URL looks like https://http.dog/404.jpg, not just https://http.dog/
CORS error in browser Fetching the image URL cross-origin with fetch() instead of an img tag
Use an <img> tag with the URL as the src attribute instead of fetching with JavaScript fetch()

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 20/20
🔒 Security 15/15
🛠 Developer XP 20/20
✓ Reliability 7/15
Response Time 65ms

Fully tested on Apr 5, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS YES
Category Animals
Difficulty Beginner
Verified: 2026-04-04

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