# Incremental authorization

## Retrieve all authorizations

 - [GET /v2/transactions/{ratepay_transaction_id}/authorizations](https://docs.ratepay.com/apis/payment/openapi/payment_api/incremental-authorization/getallauthorizations.md): Retrieve all authorization resources of an existing transaction including their attributes.

## Incrementally authorize transaction

 - [POST /v2/transactions/{ratepay_transaction_id}/authorizations](https://docs.ratepay.com/apis/payment/openapi/payment_api/incremental-authorization/incrementalauthorizationtransaction.md): Increase the amount of a previously authorized transaction

## Retrieve an authorization

 - [GET /v2/transactions/{ratepay_transaction_id}/authorizations/{ratepay_authorization_id}](https://docs.ratepay.com/apis/payment/openapi/payment_api/incremental-authorization/getsingleauthorization.md): Retrieve an authorization resource of an existing transaction including its attributes.