# keyed_only: A paid subscription is required

Status 403.

## 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

```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"
}
```

All errors: https://unique.domains/api/problems