Glossary API Application and Content Provider Content Charging e-service infrastructure providers e-shop Macropayment Merchant Micropayment Mobile business Mobile Payment Payment Service Provider Prepaid Volume Charging The Payment Service Provider (PSP) provides the mobile payment service. He has the responsibility for the consumer and/or merchant contractual relationships, handles payment customer care, and is responsible for the profile management of his contractual relations. Thus, he carries out the authentication of the consumer and performs the online check of the accounts, handles the requests from merchants and/or consumers, checks the credit-worthiness of the consumer, and initiates clearing.