The Cashplus API

What will you create?

Our secure developer portal provides detailed technical documentation required for effortless integration with the Cashplus API

If you'd like to know more, please get in touch.

Cashplus API

Get started and register by authenticating using our Identity API and read our quick start guides.

Open Banking API

  1. Explore our documentation - View swagger specifications of our Open Banking Endpoints

  2. Enrol with Open Banking - Visit the Open Banking site to enrol to their directory

  3. Start developing - Login to the Open Banking directory to gain access to our sandbox

Get started and register with our Dynamic Client Registration API now

How can we help?

Please see our developer guides above and additional information from Open Banking.

If you're interested in exploring partnership opportunities that our APIs make possible, or if you're looking to integrate with us outside of Open Banking to enhance your own products, please get in touch!

Terms and Conditions apply, including applicants being resident in the UK & aged 18+ and, if relevant, businesses being based in the UK.

For full website terms including information on Cashplus Bank, Mastercard and use of Trademarks, please see our full legal disclosures at

Advanced Payment Solutions Limited (APS) provides credit facilities subject to approval and affordability, and where accounts continue to meet APS credit criteria. APS is authorised by the Prudential Regulation Authority (PRA) and regulated by the Financial Conduct Authority (FCA) and the PRA. Our Firm Reference Number (FRN) is 671140.

♦Calls to 03 numbers cost no more than a national rate call to a 01 or 02 number and will count towards inclusive minutes in the same way as 01 and 02 calls. Calls may be recorded.

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