Who am I, and what can I do
Authorizations
An API key (klk_...) or a Clerk session token. Both resolve to the same account and behave identically.
Response
The account.
past_due is treated as active — a failed card is not abuse. cancelled cannot create or edit, but every link it ever made keeps resolving.
free, active, past_due, cancelled The paid plan, or null when the account is not subscribed. starter allows 100 new links per billing cycle; unlimited follows the trust ramp. Both include every feature — they differ only in volume.
starter, unlimited Counts archived links too. Archiving never refunds the quota. Measured over quota_period_start when that is set, otherwise over all time.
null means unbounded.
Epoch ms. The window links_used and link_quota are measured over. Set only on the starter plan, where the allowance is per billing cycle; null means the quota is a lifetime total.