> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rxnote.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Limits

> Request rate, visits in progress, audio and transcript size.

| Limit | Default |
| - | - |
| Requests per key | 120 per minute |
| Visits in progress per account | 20 |
| Audio file size | 500 MB |
| Audio types | `audio/webm`, `audio/ogg`, `audio/mpeg`, `audio/mp4`, `audio/x-m4a`, `audio/wav`, `audio/x-wav`, `audio/flac` |
| Transcript length | 500,000 characters |
| Upload URL lifetime | 1 hour |
| Time to upload before a `recording` visit is removed | 6 hours |

Over a rate or concurrency limit, the API answers `429` with a `Retry-After` header in seconds. Need higher limits?
Ask your RxNote contact.


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