# Use Cases
source: https://developer.mastercard.com/identity-insights-for-transactions/documentation/use-cases/index.md

The client's interaction with the API can be used for:

* [Pre-Authentication / Pre-Authorization](https://developer.mastercard.com/identity-insights-for-transactions/documentation/use-cases/use-cases-1/index.md)
* [Post-Authorization](https://developer.mastercard.com/identity-insights-for-transactions/documentation/use-cases/use-cases-2/index.md)