# APIs

- [API Reference](/unico-idpay/en/integration/apis/api-reference.md): In this section, you will find all the available endpoints for the Unico IDPay product.
- [Payment transactions](/unico-idpay/en/integration/apis/api-reference/payment-transactions.md): In this section, you will find all the technical specifications of the IDPay product REST APIs for managing payment transactions.
- [Chargeback](/unico-idpay/en/integration/apis/api-reference/chargeback.md): In this section, you will find all the technical specifications of the IDPay product REST APIs for managing chargeback transactions
- [Credit card onboarding](/unico-idpay/en/integration/apis/api-reference/credit-card-onboarding.md): In this section, you will find all the technical specifications of the IDPay product REST APIs for managing credit card onboarding transactions
- [Errors](/unico-idpay/en/integration/apis/errors.md): In this section, you will find an overview of the errors you may receive from the endpoints of the Unico IDPay product
- [Enumerated](/unico-idpay/en/integration/apis/enumerated.md): In this section, you will find all the enumerations related to the Unico IDPay product