Deblock, founded by Revolut alumni and based between London and Lille, is creating a new kind of account — combining traditional banking features with a non-custodial crypto wallet. With full EEA coverage and a newly secured banking license, the company is scaling fast.
But rapid growth and hybrid use cases also bring complexity. Especially when it comes to the clarity of transaction data.
The Challenge: High Velocity, High Expectations
Deblock issues both virtual and physical cards, enabling users to make payments across borders and merchants. For the product to build trust and deliver a smooth experience, users must instantly recognise where, when, and how they spend their money.
The team previously used an internal solution to standardise merchant names and find logos, but it covered less than half of all transactions and wasn’t scalable long-term.
Maintaining it manually was difficult, especially with frequent new merchants and edge cases across markets.
The need was also to clean up millions of historical transactions to deliver a consistent, high-quality experience even on past spend.
“What mattered most to us was coverage and the cleanliness of the data. That’s exactly what Tapix delivered.”
— Eugene Shulitskyi, Head of Fiat Products, Deblock
The Solution: More Transparency, Less Confusion
Deblock integrated Tapix, a cloud-based transaction enrichment API trusted by banks and fintechs across 80+ markets.
Tapix identifies and enriches card transactions with:
- Clean, standardised merchant names
- Recognisable logos
- Support for both real-time and historical enrichment
And all of it with performance to match:
- 3ms API response times for real-time usage
- 99.99% data accuracy
- Coverage of 700K+ merchants, 50K+ logos, and over 2M unique shops
Despite the volume and complexity, integration was completed in under 30 days, with enriched data flowing immediately into both mobile and web interfaces.
“This was a fast, focused collaboration. We’re happy to support Deblock with reliable data where it mattered most. We're already exploring new areas together, while continuing to strengthen global coverage.”
— Ivan Dovica, Co-Founder & CEO, Tapix
The Impact: More Coverage, Better Experience
With Tapix live, Deblock kept its feed design unchanged, but the quality of what users now see has significantly improved.
- Merchant coverage increased from ~50% → 75%
- Logo coverage now reaches 66%
- In a sample dataset of 550,000 transactions, Tapix identified 8,000+ unique merchants and delivered 3,774 unique logos
All of this ensures that users instantly recognise their spending — with far less confusion and far more clarity.
“In a product that connects traditional and decentralised finance, you don’t want your users lost in the transaction list. Tapix helped us deliver the kind of experience that feels native — clean, fast, and easy to trust.”
— Eugene Shulitskyi, Head of Fiat Products, Deblock
With cleaner data, Deblock is now better positioned to introduce future features — from budgeting and smart notifications to personalised financial insights.
