The number of successful API (Application Programming Interface) calls made by third-party providers (TPPs) using ASPSP (Account Servicing Payment Service Providers) open banking APIs in the United Kingdom increased significantly over a six-year period. As of June 2018, there were approximately 1.9 million monthly API calls. By February 2025, this figure had grown to over 1.7 billion successful monthly calls, representing a substantial increase in open banking adoption and usage.
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Successful API calls made by third party providers (TPPs) using account providers (ASPSPs) Open Banking APIs in the United Kingdom (UK) from June 2018 to February 2025
(in millions)
The source adds the following information: Successful API calls are based on data submitted by account providers (ASPSPs) to Open Banking for the last two years: Jan 2020 – 9 providers, 18 brands; May 2020 - nine providers, 19 brands; September 2021 - nine providers, 18 brands. Since November 2022, there have been nine providers and 20 brands providing data.
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Open Banking. (April 9, 2025). Successful API calls made by third party providers (TPPs) using account providers (ASPSPs) Open Banking APIs in the United Kingdom (UK) from June 2018 to February 2025 (in millions) [Graph]. In Statista. Retrieved June 17, 2025, from https://www.statista.com/statistics/1212259/successful-calls-made-by-tpps-using-account-providers-on-banking-apis-united-kingdom/
Open Banking. "Successful API calls made by third party providers (TPPs) using account providers (ASPSPs) Open Banking APIs in the United Kingdom (UK) from June 2018 to February 2025 (in millions)." Chart. April 9, 2025. Statista. Accessed June 17, 2025. https://www.statista.com/statistics/1212259/successful-calls-made-by-tpps-using-account-providers-on-banking-apis-united-kingdom/
Open Banking. (2025). Successful API calls made by third party providers (TPPs) using account providers (ASPSPs) Open Banking APIs in the United Kingdom (UK) from June 2018 to February 2025 (in millions). Statista. Statista Inc.. Accessed: June 17, 2025. https://www.statista.com/statistics/1212259/successful-calls-made-by-tpps-using-account-providers-on-banking-apis-united-kingdom/
Open Banking. "Successful Api Calls Made by Third Party Providers (Tpps) Using Account Providers (Aspsps) Open Banking Apis in The United Kingdom (Uk) from June 2018 to February 2025 (in Millions)." Statista, Statista Inc., 9 Apr 2025, https://www.statista.com/statistics/1212259/successful-calls-made-by-tpps-using-account-providers-on-banking-apis-united-kingdom/
Open Banking, Successful API calls made by third party providers (TPPs) using account providers (ASPSPs) Open Banking APIs in the United Kingdom (UK) from June 2018 to February 2025 (in millions) Statista, https://www.statista.com/statistics/1212259/successful-calls-made-by-tpps-using-account-providers-on-banking-apis-united-kingdom/ (last visited June 17, 2025)
Successful API calls made by third party providers (TPPs) using account providers (ASPSPs) Open Banking APIs in the United Kingdom (UK) from June 2018 to February 2025 (in millions) [Graph], Open Banking, April 9, 2025. [Online]. Available: https://www.statista.com/statistics/1212259/successful-calls-made-by-tpps-using-account-providers-on-banking-apis-united-kingdom/