The Glossary is designed to provide a clear and simple explanation of the key terms you will find on this website.

Acronym Term Definition
AISP Account Information Service Provider An Account Information Service provides account information services as an online service to provide consolidated information on one or more payment accounts held by a payment service user with one or more payment service provider(s).
API Application Programming Interface An Application Programming Interface is a set of routines, protocols, and tools for building software applications. An API specifies how software components should interact.
API Data API Data is data made available to an API User or a TPP through the APIs.
API User An API User is any person or organisation who develops web or mobile apps which access data from an API Provider.
API Provider An API Provider is a service provider implementing an Open Data API. An API Provider provides Open Data via an API gateway.
ASPSP Account Servicing Payment Service Provider Account Servicing Payment Service Providers provide and maintain a payment account for a payer as defined by the PSRs and, in the context of the Open Banking Ecosystem are entities that publish Read/Write APIs to permit, with customer consent, payments initiated by third party providers and/or make their customers’ account transaction data available to third party providers via their API end points.
ASPSP Brand An ASPSP brand is any registered or unregistered trade mark or other Intellectual Property Right provided by an ASPSP.
PSD2 Revised Payment Services Directive The Payment Services Directive 2015/2366, as amended or updated from time to time and including the associated Regulatory Technical Standards developed by the EBA and agreed by the European Commission and as implemented by the PSR and including any formal guidance issued by a Competent Authority.
PISP Payment Initiation Services Provider A Payment Initiation Services Provider provides an online service to initiate a payment order at the request of the payment service user with respect to a payment account held at another payment service provider.
PSU Payment Services User A Payment Services User is a natural or legal person making use of a payment service as a payee, payer or both.
SCA Strong Customer Authentication Strong Customer Authentication as defined by EBA Regulatory Technical Standards is an authentication based on the use of two or more elements categorised as knowledge (something only the user knows [for example, a password]), possession (something only the user possesses [for example, a particular cell phone and number]) and inherence (something the user is [or has, for example, a finger print or iris pattern]) that are independent, [so] the breach of one does not compromise the others, and is designed in such a way as to protect the confidentiality of the authentication data.
TPP Third Party Provider Third Party Providers are organisations or natural persons that use APIs developed to Standards to access customer’s accounts, in order to provide account information services and/or to initiate payments.Third Party Providers are either/both Payment Initiation Service Providers (PISPs) and/or Account Information Service Providers (AISPs).