# Mastercard Installments APIs
source: https://developer.mastercard.com/unified-installments/documentation/api-reference/mastercard-installments-services/index.md

Mastercard Installments APIs provides the detailed information of inbound and outbound APIs.

* [Inbound APIs](https://developer.mastercard.com/unified-installments/documentation/api-reference/mastercard-installments-services/inbound-api/index.md)
* [Outbound APIs](https://developer.mastercard.com/unified-installments/documentation/api-reference/mastercard-installments-services/outbound-api/index.md)