Common questions about the public API.
X-RateLimit-Remaining and X-RateLimit-Remaining-Day on a normal response — if either is unexpectedly low, something else using the same key (another instance of your app, a leaked key, a bug that retries in a tight loop) is likely consuming the budget. See Rate Limits./api/v1/) specifically so it can evolve without breaking existing integrations — a future breaking change would land under a new version path, not silently change /v1 underneath you.