In the growing interest of financial technologies, the research of its environment, market, and needs are important. The scientific problem of this article is: how the service of open banking could be implemented into the Lithuanian market? The purpose of this article – after literature review and theoretical analysis of existing financial technologies services in the segment of payments, to create a methodical framework for new service of open banking implementation into the Lithuanian market. In the literature analysis, the concept and ecosystem of fintech is presented, as well as existing services in the area of payments and their market. In the methodological part of this article – stages of the research are presented, including analysis of use cases of open banking, Ansoff Matrix and SWOT analysis. In the empirical part - analysis of use cases of open banking is done, diversification strategy, according to Ansoff Matrix presented, and SWOT analysis for OB implementation into Lithuanian market introduced.

Keywords: Fintech, payments, Open banking (OB), Payments Service Directive (PSD2), Application Programming Interface (API).