Ironfang Finance API problem type
free_allowance_exhausted
Free allowance used up. HTTP 429.
What it means
This month's free allowance for the operation's meter is used up and paid usage is not enabled on the billing account. Nothing was accepted or charged. Validations and generations have separate allowances.
What to do
Enable paid usage in Billing, or wait for the free allowance to renew at reset_at, the start of the next UTC month.
What the response carries
typehttps://ironfang.com/problems/free_allowance_exhausted, this page.status- Always 429 for this code.
codefree_allowance_exhausted. Stable: branch on this, not on the wording oftitleordetail.detail- What happened this time, safe to show to a person. It never carries invoice content.
request_id- The same value as the
X-Ironfang-Request-IDheader. Quote it to support. retry_after_seconds- Never present for this code.
outcome- Absent. This code is not a statement about any document.
Problems follow RFC 9457 and are served as application/problem+json. A validation finding is never a Problem: an invalid invoice is a successful response that lists its findings. See every problem type, the Finance guide and the OpenAPI contract.

