Every API has a ceiling. Here's where yours is.
Cross-API reference for rate limits, quotas, error codes, and retry logic. Not a directory. Not a blog. A verified record. Every number is dated. Every page carries the source it came from.
| API | Rate limits | Last verified |
|---|---|---|
| OpenAI | 5Kâ30K RPM by tier | 2026-11-04 |
If you hit a 429 and need to know why and what to do next, this is for you. Each page shows:
Retry-After headerCross-API reference. Every number dated. Every page carries the source it came from. If you find a discrepancy, open an issue.