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

# Rate Limits

> Request throttling on the Rex BaaS API

Requests are limited to **120 per minute**, counted per business account
(once you're authenticated — pre-login endpoints like
[Register](/api-reference/authentication/register-a-partner-account) are limited per IP
address instead).

This is one flat limit shared across every endpoint group — there's no
separate, higher limit for read (`GET`) calls, and no difference between
sandbox and live.

A rate-limited request returns:

```json theme={null}
{
  "status": "error",
  "message": "Too many requests. Please try again later.",
  "error_code": "TOO_MANY_REQUESTS",
  "request_id": "a1b2c3d4-..."
}
```

with HTTP status `429`. Back off and retry — a fixed delay of a few
seconds is enough in practice, since the window is per-minute.

<Note>
  [Update API Configuration](/api-reference/partner-settings/update-api-configuration)
  accepts a `rate_limit` field, but it isn't wired up to actually change
  your limit yet — the 120/minute figure above is what's enforced today
  regardless of what you set there.
</Note>