Request rate

Each plan has a requests-per-minute cap applied per API key. Exceeding it returns 429 RATE_LIMITED with a Retry-After header — wait that many seconds before retrying; do not retry in a tight loop.

See the pricing page for current numbers — plan quotas live in PLANS and are the single source of truth.

Concurrency

Capture calls occupy a per-plan concurrency slot. When all slots are busy the request queues briefly; sustained overload returns 429. Design for backoff, not for infinite parallelism — for bulk work prefer crawl, which manages its own pipeline.

Monitor cadence

interval_minutes has a per-plan floor (e.g. Free plans get a coarser minimum than paid plans). The API rejects intervals below your plan's floor with INVALID_REQUEST.