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Policy Document on Publishing Open Data using Open API

Release Date: 07 Jan 2019

This Policy Document sets out the Bank’s guidance on the development and publication of Open Application Programming Interface (Open API) for open data by financial institutions.

The Policy Document also encourages financial institutions to adopt the Open Data API Specifications (Specifications) on selected product information developed by the Open API Implementation Groups. The Specifications are published on

The Bank had received written feedback and queries from the public throughout the consultation period. Where relevant, the Bank has incorporated the feedback in the Policy Document. The Bank has also prepared a response to common feedback/queries from the public.


See also:


[1] Open Application Programming Interface (Open API) refers to an API that allows third party access, which may be subject to certain controls by the Open API publisher.

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