Rate limits apply per organization, so all of your API keys share the same budget.
When you are rate limited
You receive a429 Too Many Requests response. Every response includes headers to help you manage your rate:
X-RateLimit-Limit: maximum requests for the current windowX-RateLimit-Remaining: requests left in the current windowX-RateLimit-Reset: seconds until the window resets
429 is safe. Event ingestion is deduplicated by transaction_id, so a replayed event is never billed twice. Back off until X-RateLimit-Reset reaches zero before retrying.
Kafka, Kinesis, and S3 connectors are not subject to REST API rate limits. Their throughput is bounded by your broker or infrastructure capacity.