image-archive
Openverse
A search engine from the WordPress project spanning more than 800 million openly licensed and public-domain images and audio files drawn from many source collections. Search on the website or via its keyless API. Best when you want reusable media and one query across many open collections instead of visiting each separately.
Images API
Why it’s useful & how it works
FINDING: the openverse.org HTML is CF-challenged, but api.openverse.org answers cleanly both ways. Anonymous tier is enough; optional OAuth raises limits.
What’s inside
800M+ openly-licensed images + audio.
API access
https://api.openverse.org/v1/images/?q= ; /v1/audio/?q=
Access
Programmatic API access (a key may be required — see the API tag).