What is an Account Servicing Payment Service Provider (ASPSP)?
Account Servicing Payment Service Providers provide and maintain payment accounts for payment service users (PSUs). Traditionally, ASPSPs are banks and similar institutions. Under Open Banking, ASPSPs publish Read/Write APIs. These enable consumers to share their account transaction data with third-party providers; in turn third-party-providers can initiate payments on their behalf. Under PSD2, all ASPSPs in Europe are required to participate in open banking and provide access to the data.