# UK Open Banking hits 1 billion payments and 100 billion API calls

**Published:** 2026-08-02T08:16:54.594Z  
**Topic:** Banking  
**Sentiment:** neutral  
**Publisher:** TrendWatcher — https://www.trendwatcher.in/article/74409411-c345-44d1-b02f-48b0fc4319a2

UK Open Banking milestone of over 1 billion payments and 100 billion API calls recorded, with June API calls up 4.4% and response time cut to 349 ms – see the

The UK’s Open Banking ecosystem crossed the 1 billion‑payment threshold and logged 100 billion API calls, underscoring its growing role in the country’s financial infrastructure and prompting modest market attention [1].

| At a glance | |
|---|---|
| Payments processed | 1 billion total; 40.16 m in June |
| API calls | 100 billion cumulative; 2.81 bn in June (+4.4% MoM) |
| Average response time | 349 ms (‑50 ms vs. prior period) |
| Market reaction | FTSE 100 edged up ~0.2% after the release; GBP‑USD steady around 1.27 |

## Milestone details and recent performance  
The cumulative figures represent the ninth‑largest UK banks (CMA9) since Open Banking was mandated in 2018. The 1 billion‑payment count marks a “defining moment” for the initiative, showing that account‑to‑account transfers have moved from a niche service to a core payment channel [1][3]. In June, the ecosystem recorded 40.16 million payments, a level that held steady despite a 1.2% dip in single domestic payments, which was offset by a 6.7% rise in variable recurring payments (VRPs) [1][2].  

API activity also surged, with 2.81 billion calls in June—the highest monthly volume on record—up 4.4% from the previous month [1][2]. This growth reflects sustained demand for Open Banking‑powered services such as budgeting apps, fintech‑driven lending, and merchant‑initiated payments. Operational metrics improved as well: average response time fell to 349 ms, a 50‑ms improvement, indicating better system efficiency and resilience [1][2].

## Market response and broader implications  
The announcement coincided with a modest rise in the FTSE 100, which gained roughly 0.2% as investors priced in the potential for Open Banking to boost competition and innovation in the UK financial sector [1]. The British pound remained largely unchanged against the US dollar, suggesting that the data point was viewed as a neutral, albeit positive, development rather than a catalyst for currency moves.  

Analysts note that the expanding use of VRPs signals a shift toward recurring, subscription‑based business models, which could deepen fintech integration with traditional banks [1]. However, consumer sentiment outside the UK remains mixed; a PYMNTS‑Trustly survey found that only 46% of U.S. consumers would consider Open Banking payments for any purchase, and just 11% have actually used them [2]. This gap highlights the ongoing challenge of consumer education and trust, even as the UK framework matures.

## What to watch  
- **June 2026 API and payment data** – next month’s volume will indicate whether the 4.4% MoM growth sustains.  
- **Regulatory updates** – any CMA or FCA guidance on Open Finance could expand the scope beyond payments.  
- **UK inflation and monetary policy** – tighter monetary conditions could affect the cost‑benefit analysis of account‑to‑account transfers versus card payments.  

The 1 billion‑payment milestone confirms that Open Banking has become a backbone of UK payments, but its future impact will hinge on continued consumer adoption and potential regulatory extensions into broader Open Finance services.

## Sources
1. Finextra — [UK Open Banking hits one billion payments milestone](https://www.finextra.com/pressarticle/110503/uk-open-banking-hits-one-billion-payments-milestone)
2. Pymnts — [Open Banking Reaches 1 Billion Payment Milestone in the UK](https://www.pymnts.com/news/banking/2026/open-banking-reaches-1-billion-payment-milestone-in-the-uk/)
3. Credit-connect — [Open Banking passes one billion payments milestone](https://www.credit-connect.co.uk/news/consumer-lending/open-banking/open-banking-passes-one-billion-payments-milestone/)
4. Financial IT — [Open Banking Surpasses One Billion Payments and 100 Billion API Calls](https://financialit.net/news/payments/open-banking-surpasses-one-billion-payments-and-100-billion-api-calls)
5. Newsbreak — [Open Banking Reaches 1 Billion Payment Milestone in the UK](https://www.newsbreak.com/pymnts-512672/4796314171900-open-banking-reaches-1-billion-payment-milestone-in-the-uk)
6. News — [UK Open Banking Crosses 1 Billion Payments and 100 Billion ...](https://news.codegotech.com/uk-open-banking-1-billion-payments-100-billion-api-calls/)

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Cite as: TrendWatcher, "UK Open Banking hits 1 billion payments and 100 billion API calls", https://www.trendwatcher.in/article/74409411-c345-44d1-b02f-48b0fc4319a2