Error code
unknown_entity_domain
Browse a domain the registry serves. The domain was well formed, but the entity registry does not serve it.
What happened
The rejected domain is named in message, and hint lists every domain the registry serves today. Domains are membership-checked, so an unknown domain is refused by name instead of returning an empty page.
Do this next
Pick the intended domain from the list in hint and retry the same browse request with everything else unchanged.
Corrected request
bash
curl "https://api.cardog.app/v2/entities?domain=make&limit=5" \
-H "x-api-key: $CARDOG_API_KEY"