**Based on your account plan, some of the Data Services API functions are subject to quota limitations and extra fees may apply.** View our [terms and conditions](https://carto.com/terms/), or [contact us](mailto:sales@carto.com) for details about which functions require service credits to your account.
Quota consumption is calculated based on the number of request made for each function. Be mindful of the following usage recommendations when using the Data Services API functions:
* One credit per function call will be consumed. The results are not cached. If the query is applied to a _N_ rows dataset, then _N_ credits are consumed
* It is advised to store results of these queries into your datasets, and refresh them as needed. This ensure more control of quota credits for your account