Abound and D•One bring open banking credit scoring to 3.5m users

UK lender Abound has partnered with D•One, the open banking services arm of the ClearScore Group, to extend real-time transaction-based credit assessments to more than 3.5 million consumers already connected to ClearScore's open banking infrastructure. The deal lets Abound begin evaluating a prospective borrower's financial position before that customer even lands on Abound's own website, using D•One's transaction-categorisation engine and its proprietary D•One Risk Score.

The practical effect is a compression of the traditional loan-application funnel. Rather than asking applicants to authorise a fresh open banking connection during the application, Abound can draw on transaction data that ClearScore users have already shared, producing a personalised quote from the first moment of a loan search. Abound says this reduces friction and limits the need for duplicate checks further down the journey.

A credit infrastructure play, not just a lending deal

The more structurally significant element of this announcement is what it reveals about D•One's market position. The ClearScore unit now counts more than 30 lenders on its platform, including Monzo, Capital One, Zopa, Lendable, and NewDay. That roster makes D•One less a bilateral data-sharing arrangement and more a shared credit-infrastructure layer sitting beneath a significant slice of the UK consumer-lending market.

The D•One Risk Score is central to that positioning. Built on more than 12 billion categorised transactions accumulated over a decade, the score is designed to allow lenders to make credit decisions using open banking data as a standalone input, rather than as a supplement to traditional bureau scores. For lenders serving borrowers with thin or patchy credit histories, that shift in methodology is material: it widens the addressable population without necessarily increasing default risk, provided the underlying transaction signals are reliable.

Tim Kelleway, Managing Director at D•One, said: "Open banking intelligence is fast becoming a core part of credit decisioning, and Abound is one of the most advanced players in this space."

Convergence angle: fintech infrastructure meets the consumer data economy

The Abound-D•One deal sits within a broader restructuring of the consumer credit stack that has implications well beyond UK retail lending. Open banking mandates have proliferated across the EU under PSD2 and its successors, and regulators in Australia, Brazil, and several GCC markets have introduced analogous frameworks. Each of those regimes is generating a similar opportunity: a data intermediary layer that aggregates consented transaction feeds and sells risk-scored outputs to lenders.

That pattern closely mirrors what happened in the payments infrastructure space over the previous decade, when a small number of API aggregators, Plaid and Truelayer among them, became critical dependencies for large numbers of financial-services businesses. The question for cross-sector investors is whether open banking risk scoring follows the same consolidation trajectory, producing one or two dominant infrastructure providers with pricing power over the lenders that depend on them.

For capital allocators with positions across fintech and data infrastructure, the Abound-D•One partnership is a signal worth tracking. The UK Financial Conduct Authority has been signalling an interest in the reliability and governance of AI-driven credit models; any tightening of model explainability requirements could raise the cost of maintaining proprietary transaction-scoring systems, favouring shared infrastructure players like D•One over in-house builds at individual lenders.

Abound itself, founded in 2020 by former McKinsey and EY alumni, topped the Sunday Times 100 Tech rankings in 2026 as the UK's fastest-growing tech business. Its growth trajectory makes it a useful proxy for the viability of the open-banking lender model at scale. Whether that model can sustain its underwriting performance as it moves up the risk curve, now reaching more customers who were previously declined by bureau-based lenders, will be the next stress test for the convergence of consumer data infrastructure and credit markets.