Status 429

quota_spent

The month's quota is spent

Why it happens

A member key used the plan's calls, or one of its metered units, for this UTC month. A batch counts one call per key, so it can refuse while single calls still pass.

What to do

The month resets on the first, 00:00 UTC, as Retry-After says. The X-Quota-* headers give the figures, so a script can send a smaller batch.

Example

429 · application/problem+json · Retry-After: 86400

{
  "type": "https://unique.domains/api/problems/quota_spent",
  "title": "The month's quota is spent",
  "status": 429,
  "detail": "This key used the Founder plan's 10,000 calls of this month. It resets on 2026-12-01 (UTC).",
  "instance": "/v1/names/harbor.io",
  "code": "quota_spent"
}