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

# Rate limits

> Request rate limits and monthly quotas.

## Per-key rate limit

All endpoints are rate-limited at **5 requests per second** per API key, using a sliding window.

Exceeding the limit returns a `429` response:

```json theme={null}
{
  "detail": "Rate limit exceeded"
}
```

Back off and retry after a short delay. The window resets within one second.

## Monthly quotas

`/ip`, `/email`, and `/phone` are metered. Each plan includes a monthly call allowance. When you exhaust it, those endpoints return `403`:

```json theme={null}
{
  "detail": {
    "error": "quota_exceeded",
    "reason": "plan_quota_exhausted",
    "api": "ip",
    "subscribe_url": "https://tracenow.io/app/subscribe"
  }
}
```

`/trace`, `/identify`, and `/validate` are **not** metered and are not subject to monthly quotas.

## Increasing limits

To increase your rate limit or monthly quota, [contact us](mailto:hello@tracenow.io) or upgrade your plan from the [dashboard](https://tracenow.io/dashboard).