What is a TPP? Naomi June 18, 2019 08:15 Updated Follow That's you! A (“TPP”) is a Third Party Provider. TPPs are entities that use APIs to access their customer’s accounts, in order to provide with services like account aggregation, personal finance management and/or payments. Related articles What is PSD1? What is a PSU? What is a PSP? What is AIS? What changes to PSD1 has PSD2 introduced? Comments 0 comments Article is closed for comments.