API

API versioning and OpenAPI 3

The Griffin API is now versioned. When we make a change in our API, we'll release it as a new dated version. Your integration stays on the version it uses...

October 21, 2026

API Reliance Outsourced

Onboard individuals resident outside the UK

You can now submit individuals who reside outside the UK. This is available on the Reliance and Outsourced onboarding models only. See our Onboarding models...

October 14, 2026

API App Payments

Payment rails can now be configured per product

We're in the process of rolling out Direct Debits, and as part of this, payment rails can now be configured per product. For each bank account product, you...

October 13, 2026

API App Savings accounts Embedded bank accounts

Account statements are now available via the app and API

We’ve rebuilt how you can generate statements from the ground up. The new account statements give you and your customers more information about your bank...

October 8, 2026

API App Verify Reliance

Structured decline reasons for onboarding applications

When an onboarding application is declined, a decision now tells you why. Every declined decision returns a decline-reasons array, and each reason includes a...

October 7, 2026

API Verify Reliance

Onboarding workflow updates effective 1 October 2026

We're making updates to the onboarding workflow for LTD, Sole Trader, and Individual accounts, taking effect on 1 October 2026. Action required by 1 October...

September 14, 2026

API Reliance Outsourced

Onboard societies on Reliance and Outsourced

You can now submit Societies for onboarding through the API. This is available on the Reliance and Outsourced onboarding models only. See our Onboarding...

June 5, 2026

API App Security

You can now freeze and block bank accounts via the app or API

You can now apply restrictions to any bank account within your organisation via the API or the app. Two restriction types are available: Restrictions can be...

March 12, 2026

API App Safeguarding accounts Client money accounts Savings accounts Embedded bank accounts Business banking

Interest accrued now shows in the API and app

You can now view interest accrual for different bank accounts through the API and in the Griffin app. You can: How to retrieve accrued interest through the...

March 5, 2026

API Payments

Changes to debtor and creditor identification fields

We're updating how we represent debtor and creditor information in payment responses to better support overseas payments. Below is a summary of the changes....

February 9, 2026