Source: OECD (2019) Unlocking the digital economy - A guide to implementing application programming interfaces in government, OECD, Paris https://www.oecd.org/tax/forum-on-tax-administration/publications-and-products/unlocking-the-digital-economy-guide-to-implementing-application-programming-interfaces-in-government.pdf API management as part of a fully connected digital ecosystem Put in place an API gateway Define RESTful style guide Develop and deploy RESTful services (microservices) Connect to legacy services (SOAP, proprietary DB, ...)