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From Approved to Spendable in Seconds: How Card Issuing Collapses the Lending Loop Into One System
Embedded finance

From Approved to Spendable in Seconds: How Card Issuing Collapses the Lending Loop Into One System

By Dmitri Bezsonov28 September 20265 min read
API Authentication: OAuth, API keys, and Security Best Practices
Embedded finance

API Authentication: OAuth, API keys, and Security Best Practices

By Dmitri Bezsonov23 September 20266 min read
Lending the Money Is the Easy Part. Controlling How It's Spent Is the Hard Part
Embedded finance

Lending the Money Is the Easy Part. Controlling How It’s Spent Is the Hard Part

By Wallester Blog23 September 20266 min read
REST API Design for Card Issuance: Endpoints, Methods, and Response Formats
Embedded finance

REST API Design for Card Issuance: Endpoints, Methods, and Response Formats

By Dmitri Bezsonov21 September 20267 min read
The Best Signal a Lender Can Have Is How the Money Gets Spent
Embedded finance

The Best Signal a Lender Can Have Is How the Money Gets Spent

By Dmitri Bezsonov18 September 20265 min read
ISO 8583 message
Embedded finance

ISO 8583 Message Format Guide: Structure, Data Elements, and Payment Transaction Flow

By Dmitri Bezsonov14 September 20267 min read
7 Things to Set Up Before You Hand an Employee a Company Card
Expense management

7 Things to Set Up Before You Hand an Employee a Company Card

By Denis Kaiukov07 September 20265 min read

More articles

Subscription Management Is Becoming a Finance Problem. Here’s How to Solve It
Expense management

Subscription Management Is Becoming a Finance Problem. Here’s How to Solve It

By Denis Kaiukov14 May 20264 min read
Configuring Virtual Card Rules for Employee Safety
Expense management

Configuring Virtual Card Rules for Employee Safety

By Dmitri Bezsonov11 May 20269 min read
How Virtual Cards Simplify Accounts Payable Workflows
Corporate cards

How Virtual Cards Simplify Accounts Payable Workflows

By Dmitri Bezsonov07 May 20269 min read
Testing and Sandbox: Building Embedded Card Features Without Risk
Embedded finance

Testing and Sandbox: Building Embedded Card Features Without Risk

By Dmitri Bezsonov06 May 20268 min read
Virtual Card Acceptance: Getting Your Vendors to Accept Card Payments
Corporate cardsOnline retail

Virtual Card Acceptance: Getting Your Vendors to Accept Card Payments

By Dmitri Bezsonov05 May 20268 min read
The Corporate Spend Category That Is Moving in Two Directions at Once
Expense management

The Corporate Spend Category That Is Moving in Two Directions at Once

By Denis Kaiukov30 April 20264 min read
Corporate Expense Management with Virtual Cards: A Practical Guide
Expense management

Corporate Expense Management with Virtual Cards: A Practical Guide

By Dmitri Bezsonov29 April 202610 min read
Every Payment Outside Your Platform Weakens the Relationship
Embedded financeOnline retail

Every Payment Outside Your Platform Weakens the Relationship

By Denis Kaiukov29 April 20264 min read
Optimising E-commerce Growth Through Embedded Wallets and Automated Payouts
Embedded financeOnline retail

Optimising E-commerce Growth Through Embedded Wallets and Automated Payouts

By Dmitri Bezsonov28 April 202610 min read
Single-use Virtual Cards vs Multi-use Virtual Cards: Which One Do You Actually Need?
Corporate cards

Single-use Virtual Cards vs Multi-use Virtual Cards: Which One Do You Actually Need?

By Dmitri Bezsonov28 April 202610 min read
Embedded Finance Is Firmly Moving Into the Mainstream
Embedded finance

Embedded Finance Is Firmly Moving Into the Mainstream

By Denis Kaiukov20 April 20264 min read
Embedded Payment Solutions for Booking Platforms: How They Work and What to Look for
Embedded finance

Embedded Payment Solutions for Booking Platforms: How They Work and What to Look for

By Dmitri Bezsonov20 April 202612 min read
Industry-Specific Embedded Finance: Tailoring Payment Solutions to Your Market
Embedded finance

Industry-Specific Embedded Finance: Tailoring Payment Solutions to Your Market

By Dmitri Bezsonov17 April 20269 min read
Creating Seamless In-App Card Experiences: Embedded Cards for SaaS Platforms
Embedded finance

Creating Seamless In-App Card Experiences: Embedded Cards for SaaS Platforms

By Dmitri Bezsonov16 April 202614 min read
Best UK Credit Cards in 2026: Complete Guide to Top Cards
Corporate cards

Best UK Credit Cards in 2026: Complete Guide to Top Cards

By Justin Zehmke16 April 202611 min read
B2B Payment Cards Are Growing at 85%. The Main Reason Is Control
Corporate cards

B2B Payment Cards Are Growing at 85%. The Main Reason Is Control

By Denis Kaiukov16 April 20264 min read
Top virtual cards for business
Corporate cards

Best Virtual Card Platforms in Europe (2026)

By Justin Zehmke14 April 20269 min read
API architecture: how to integrate Wallester card issuance in your tech stack
Embedded finance

API architecture: how to integrate Wallester card issuance in your tech stack

By Dmitri Bezsonov14 April 202610 min read
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© 2026 Wallester AS All rights reserved.Wallester AS is a Payment Institution, authorized by the Finantsinspektsioon (Estonian Financial Supervision and Resolution Authority), and an official Visa Principal Member. Registration code: 11812882.