Status 403

keyed_only

A paid subscription is required

Why it happens

A free call asked for an endpoint, a query control or an include that needs a key: a sort, a keyed cursor, the paid fields.

What to do

Send a member key, included in Founder and Investor, or call through a paid RapidAPI subscription. The product member links to the plans. Leaving out the control keeps the call free.

Example

403 · application/problem+json

{
  "type": "https://unique.domains/api/problems/keyed_only",
  "title": "A paid subscription is required",
  "status": 403,
  "detail": "Paid subscriptions only: sort.",
  "instance": "/v1/domains",
  "code": "keyed_only",
  "product": "https://unique.domains/pricing"
}