Api standards for data-sharing (account aggregator)
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Restricted CGIDE – API standards for data-sharing – October 2022 44 standardised APIs, resulting in a distributed but consistent and secure data-sharing model. To achieve consistency, it requires robustness testing and a certification programme by regulators. United Kingdom The United Kingdom was a global pioneer in the adoption of open banking, beginning in 2017, when the Competition and Markets Authority (CMA) ordered the CMA9 23 to set up an Open Banking Implementation Entity (OBIE). The OBIE would act as governance, systems and data architect, and standards setter. The open banking model allows consumers and SMEs to share their banking and credit card transaction data securely with third parties and to initiate payments directly from their payment accounts to the beneficiary’s bank account, without the need for cards. OBIE developed standardised API specifications, starting with core APIs. The specifications and guidelines include detailed sequence/interaction diagrams, customer experience guidelines, security profiles and operational guidelines, in addition to developer-focused guidelines with sandboxes for testing, comprehensive documentation and other support to help create a dynamic software ecosystem. The implementation shows the importance of maintaining regular dialogue and collaboration for iterative development of APIs, learning from what does not work and adapting and implementing solutions. It is also easier when governance and leadership is centralised. It is advisable to have common API standards and engineering systems (sequence diagrams, flows, data model etc) under centralised oversight. It is essential to ensure regional cooperation on governance, harmonisation of legal, regulatory and technological standards, and adherence to guidelines on user experience, mandatory usage approach, clear rules of the game and codes of conduct. The United Kingdom has been working towards an open finance model and has recently developed a conceptual model focused on SMEs for the use case of obtaining better credit. In addition to the recommendations for open banking, for an open finance implementation, the United Kingdom adds that digital identity solutions are important, including for the development of an open economy. The informal economy can limit available data, reliability and quality. It may need to start with small and easily available use cases, with support from the government. 23 The CMA9 is the name of the nine largest current account providers in Great Britain and Northern Ireland. |
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