Rate limits

Each company may make 600 calls a minute to Ceta's API (live keys; test keys 60). The window is one calendar minute.

Every answer carries:

x-ratelimit-limit: 600
x-ratelimit-remaining: 599
x-ratelimit-reset: 42

Over the limit, the answer is 429 with retry-after (seconds) and {"error": "rate_limited"}. Wait that long, then retry; don't retry in a tight loop.

Marketplace APIs

Through the gateway, each subscription has its plan's rate (or the same default) and its plan's quota: a plan without a price for extra calls stops at its included calls with 429 quota_exceeded until the next period.