Animals — entry 019 of 20

The Dog

Verified Jul 2026

The Dog API is the canine counterpart to The Cat API, serving random dog images alongside account features like voting, favouriting, and uploads. Anonymous image search works at a throttled rate with no key, but voting and favouriting both return an authentication error without a free API key sent as the x-api-key header; the breeds endpoint currently returns a 403 pointing at an "AI analysis service," suggesting structured breed data has moved behind the operator's newer paid tier. That operator, That API Company, sells a custom-quote "Animal Intelligence" enterprise plan (vet-reviewed breed/health data, custom integrations) alongside the free developer tier.

dog-imagesdog-breedsvotingpet-data
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.

GreatAPIs Score

Score61out of 100
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months

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Scored 61 on greatapis.com
<a href="https://greatapis.com/api/the-dog/"><img src="https://greatapis.com/badge/the-dog.svg" alt="Scored 61 on greatapis.com"></a>

Auth quickstart

  1. Sign up with the provider to get an API key.
  2. Send it on every request as a headerAuthorization: <key>
  3. The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored

Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.