This article explains how single-use and multi-use virtual cards work, where each type fits best, and what to look for when choosing between the two for personal or business spending. Virtual cards have become a standard feature for anyone who pays o…
Every year, companies publish strategy documents and presentation decks about operational efficiency, cost discipline, doing more with less, and so on. Then they actually spend the money, and the two things do not always match. We analysed corporate…
This article covers how Apple Pay and Google Pay work under the hood, what digital wallet APIs require from developers and businesses, how virtual cards fit into the mobile payment picture, and what to weigh up before integrating either solution. Pay…
This Hub brings together all content related to virtual cards and the underlying payment technologies that support them. It serves as a central entry point for product teams, architects, and decision-makers looking to understand how virtual card prog…
This guide breaks down the mechanics of commercial card processing fees and explains how companies can transform vendor payments into a profitable income stream. You will learn the exact calculation methods, the core pricing models, and the data requ…
This article walks through how authorisation requests move through the virtual card payment chain, from the moment a transaction is triggered to the response code that approves or declines it. It covers the roles of acquirers, card networks, and issu…
Written by Edouard Roca, Head of Business Development at Wallester. Last month, JP Morgan published its five payments trends to watch in 2026. Embedded finance made the list, alongside AI agents, blockchain, and real-time treasury. When one of the wo…
This article covers how embedded payment solutions work within booking platforms, why they differ from standard payment gateways, and what technical and regulatory factors platform teams need to weigh when choosing an infrastructure provider. Booking…
This article explores how businesses integrate custom-built financial services into their platforms across various sectors. Readers will learn about the move from standard banking tools to vertical-specific fintech infrastructure that improves operat…
This article explains the technical mechanics of embedded card issuance, the commercial drivers pushing B2B software platforms to adopt them, and the critical criteria for selecting an infrastructure partner. Readers will understand the underlying AP…
Choosing the best UK credit card isn’t a one-size-fits-all decision. What makes a card “best” depends entirely on whether you’re chasing cashback on everyday spending, collecting air miles for your next holiday, or simply looking to spread a large pu…
B2B card payment volumes will grow from $5.9 trillion in 2026 to $10.9 trillion in 2030, according to new Juniper Research data. That is 85% growth in four years. Over the same period, the broader B2B payments market is forecast to grow by 17%. …
Corporate cards were built for a different era. A small number of employees. Centralised spending. Manual approvals. Monthly reconciliation. That model breaks quickly once a company starts scaling—especially if spend is distributed across teams, camp…
This guide examines the technical components of a modern card-issuance integration. It details how engineers can build scalable financial products by leveraging Wallester’s infrastructure to manage virtual and physical card programmes. Moving from le…
Looking for virtual cards in the Netherlands? Compare 10 leading providers, including features, pricing, and the best options for scaling businesses. In the Netherlands, business payments don’t follow the same rules as most of Europe. On the surface,…
In this guide, you will discover a detailed analysis of the mandatory identity verification frameworks and risk assessment protocols that digital payment providers must maintain in 2026. We comprehensively examine cross-border regulatory movements, t…
In this guide, you will learn the mechanics of embedding virtual card issuance, the infrastructure stack behind it, a step-by-step integration path, the revenue model that makes it worthwhile, common traps to sidestep, and a FAQ covering the complian…
This article covers what a bank identification number is, how its digit structure works, what a BIN reveals about a payment card, how it functions during a transaction, and why it matters for fraud prevention. It also covers the 2022 expansion to eig…
