What you get
Test for free.
Pay per call.
- Test keys from minute one. The sandbox answers like production, with watermarked outputs and nothing charged.
- One balance for every endpoint. 1 credit = $0.01, bought in one-time blocks from $20.
- Credits roll over. Up to 12 months on the Scale block — no subscription, nothing expires at month end.
- Webhooks when jobs finish. No polling, and a failed job is never charged.
