customerio-rate-limits
Installation
SKILL.md
Customer.io Rate Limits
Overview
Understand Customer.io's API rate limits and implement proper throttling: token bucket limiters, exponential backoff with jitter, queue-based processing, and 429 response handling.
Rate Limit Reference
| API | Endpoint | Limit | Scope |
|---|---|---|---|
| Track API | identify, track, trackAnonymous |
~100 req/sec | Per workspace |
| Track API | Batch operations | ~100 req/sec | Per workspace |
| App API | Transactional email/push | ~100 req/sec | Per workspace |
| App API | Broadcasts, queries | ~10 req/sec | Per workspace |
These are approximate. Customer.io uses sliding window rate limiting. When exceeded, you get a 429 Too Many Requests response.