# Use Cases
source: https://developer.mastercard.com/merchant-identifier/documentation/use-cases/index.md

[Get Merchants by Merchant Identifier](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/use-cases-1/index.md) : Customer needs to identify merchants by merchant identifier.

[Get Merchants by Card Acceptor Id](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/use-cases-2/index.md) : Customer needs to identify merchants by card acceptor id.

[Get Merchants by Tax Id](https://developer.mastercard.com/merchant-identifier/documentation/use-cases/use-cases-3/index.md) : Customer needs to identify merchants by tax id.