To ensure that our products perform at consistently high service levels, we set a rate limiting feature.
Rate limiting
You can send thousands of requests per minute, so it is unlikely you will breach the rate limiting threshold, but if you do, then calls from any of your tokens will return an HTTP status code of 500 - Internal Server Error until the window resets and you can submit requests successfully once again.
Please reach out to your Experian account manager to understand more about these limits.