Phased Approach

The Four Phases of Open API

This video shows some examples of Open API application that may be provided after each phase has been implemented.

Examples of Open API application

Open API Phases for the Hong Kong Banking Sector

Phase	Open API functions	Examples	Delivery time
I	Product information	Deposit rates, credit card offerings, service charges and other public information	By the end of January 2019
II	Customer acquisition	New applications for credit cards, loans and other products	By the end of October 2019
III	Account information	Account balance, credit card outstanding balance, transaction records, credit limit change and others	The initial batch of API functions, covering deposit account information and online merchant payments, are implemented progressively starting from December 2021
IV	Transactions	Payment and transfers

Phase I and II Open APIs

The banking sector has launched Phase I and II Open APIs in January 2019 and October 2019 respectively. The information of the Open APIs can be found in this website of the Hong Kong Science and Technology Parks, which provides a single point of reference of all the Open APIs offered by banks to facilitate access by third-party service providers. If there are any questions regarding the details of Open API functions, please contact the respective banks.

Phase III and IV Open APIs

The banking sector has been progressively implementing Phase III and IV Open APIs since December 2021. The implementation status can be found here. The information of the Open APIs can be found in this website of the Hong Kong Science and Technology Parks, which provides a single point of reference of all the Open APIs offered by banks to facilitate access by third-party service providers. If there are any questions regarding the details of Open API functions, please contact the respective banks.

Related Information

Last revision date : 27 June 2023