CAF Bank will provide a Modified Customer Interface (MCI) to allow customers to use Account Information Service Providers (AISPs), to view their account balance and transaction history, and Payment Information Service Providers (PISPs) to make payments.


Here are the steps that Third Party Providers (TPPs) will need to complete, to connect to the interface.

Step 1 - Regulation

If you are not already, you will need to be an authorised or registered AISP, PISP or Card Based Payment Institution Issuer (CBPII) with your national competent authority. In the UK, the national competent authority is the Financial Conduct Authority (FCA).

Step 2 - Obtain a valid eIDAS certificate

You will need to hold a valid Electronic Identification and Trust Service (eIDAS) certificate, issued by a Qualified Trusted Service Provider.

Step 3 - Contact us

After completing steps 1 and 2, contact us on 03000 123456 (9am – 5pm, Monday to Friday, excluding English bank holidays). When prompted, please choose option 3. We will ask for some contact details before sending you our application form and onboarding policy.

We will process your registration as quickly as we can, but no longer than three months from receipt of your application. We will then contact you, to arrange connection to our sandbox testing area or to explain why your application has been declined.

Step 4 - Join the PRETA Open Banking Europe Directory

In order to use our MCI*, you will need to join the PRETA Open Banking Europe Directory. This provides a directory of regulated entities that are able to access account balances, transaction history and make payments on behalf of customers.

* Please note: Although being listed in the PRETA directory is not necessary at the point of registering with us, it is required to interface with our MCI.


For Third Party Providers

Read our FAQs and Summary of Information Document for more details of the onboarding process, CAF Bank services and accounts.

For CAF Bank customers

Read our FAQs about Third Party Providers and their services.

CAF Bank Limited is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority (Financial Services Register number: 204451).

CAF Bank Limited Registered office is 25 Kings Hill Avenue, Kings Hill, West Malling, Kent ME19 4JQ. Registered in England and Wales under number 1837656.

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25 Kings Hill Avenue, Kings Hill, West Malling, Kent ME19 4TA
10 St. Bride Street, London EC4A 4AD
Telephone: 03000 123 000