Pexels API vs Pixabay API

Free API comparison

Pexels APIPixabay API
CategoryImage and photoImage and photo
API keyNeeded, freeNeeded, free
PricingFree with an API key, limited to 200 requests per hour and 20,000 per month, and apps must show a link to Pexels and credit photographers where possible.Free with a free API key; results must be cached and hotlinking full images is not allowed.
From the browserYes (CORS)Yes (CORS)
FormatsJSONJSON
InterfaceREST, HTTP-GETREST, HTTP-GET
Providerpexels.compixabay.com
MCP serverNoNo

Which one to choose

Pixabay also has illustrations and vector graphics besides photos and videos, with a free key, but results must be cached and full images may not be hotlinked. Pexels has photos and videos with a credit to the photographer, at 200 requests an hour, but new keys cannot be requested at the moment. For a new project, Pixabay.

Each service's own page has its full description, a code example and what visitors report: Pexels API, Pixabay API.