Phased Approach

The target go-live dates of Phase III and Phase IV Open APIs provide an implementation overview and indicative timeline for third-party service providers and related parties to better plan for service offerings.

The details of the Open API implementation of individual banks are subject to their designs and latest plans. If you have questions regarding the details of Open API functions or their target go-live dates below, please contact the respective banks.

Phase III Open API functions for retail customers

Phase III Open APIs for retail customers comprise the following functions:

Retrieval of deposit account information

• Account availability
• Account status
• Account balance
• Transaction details

Of the 28 participating banks¹, 23 banks launched the API functions. For the remaining 5 banks, their plans are as follows:

Click here for target go-live dates of API functions of each participating bank.

Phase III Open API functions for corporate and SME customers

Phase III Open APIs for corporate and SME customers comprise the following functions:

Retrieval of deposit account information

• Account availability
• Account status
• Account balance
• Transaction details

Of the 28 participating banks, 20 banks launched the API functions. 5 banks do not offer corporate or SME banking services at the moment. The remaining 3 banks below have not provided concrete implementation plans.

Click here for target go-live dates of API functions of each participating bank.

Phase IV Open API function

Phase IV Open API function comprises FPS App-to-app payments.​

Of the 28 participating banks, 26 banks launched the API functions. The remaining 2 banks below have not provided concrete implementation plans.​

Click here for target go-live dates of API functions of each participating bank.