# Payment services [ ![Conceptual data flow](/sites/default/files/styles/card_image_small/public/2022-09/Data_Validation.png?h=ccf0dbd8&itok=7QpwNqi-) ### Payment file validation service The Payment file validation service (PFVS) is designed to reduce the time and effort required to test and validate client-generated payment files during the client onboarding process. Learn more ](https://www.payments.ca/systems-services/payment-services/payment-file-validation-service) [ ![alt=""](/sites/default/files/styles/card_image_small/public/2023-01/MVS.png?h=c74750f6&itok=itHGGJDv) ### Message validation service The Message validation service (MVS) supports the industry-wide migration to the ISO 20022 messaging standard. Learn more ](/message-validation-service) [ ![Cityscape of financial buildings](/sites/default/files/styles/card_image_small/public/2022-08/Participation.jpg?h=2a71c125&itok=_n9MBbFt) ### Financial institutions file The Financial institutions file (FIF) is an electronic directory containing routing numbers to facilitate payments to the appropriate deposit-taking institution in Canada. Learn more ](https://www.payments.ca/systems-services/payment-services/financial-institutions-file) [ ![Globe with electronic connections](/sites/default/files/styles/card_image_small/public/2022-09/Database.jpg?h=ce711524&itok=o804y7oM) ### Corporate creditor identification number database A Corporate creditor identification number (CCIN) is a unique number assigned to billers to help route their client’s bill payments to them. Learn more ](https://www.payments.ca/systems-services/payment-services/corporate-creditor-identification-number-database) [ ![Computer and phone](/sites/default/files/styles/card_image_small/public/2022-08/API.jpeg?h=f5395998&itok=UoDmFw_T) ### APIs Payments Canada’s API developer portal supports our efforts to modernize our products and services in tandem with industry developments and evolving market needs. Learn more ](https://www.payments.ca/systems-services/payment-services/apis)