You are limited to 60 requests per second.

If you hit the API with too many requests in a given amount of time, subsequent requests will temporarily fail.
If your client gets rate-limited, you will start receiving `429 Too Many Requests` HTTP errors in response to your requests.

## Other limits

- Up to 250 records per request.
- Up to 15 kB of data per record, `custom_fields` included.

## Fetching results

To fetch a result, send the same request again every 30 seconds until it is ready. To make fewer calls, use [webhooks](https://developer.dropcontact.com/en/webhooks/): the result is sent to your server as soon as it is ready.

See [Errors](https://developer.dropcontact.com/en/errors/) for what to do when you receive a `429` error.