Wallester
FreelancersNew
Business
White‑Label
Company
Log inStart freeTry demo
  1. Home
  2. Blog
  3. Our products

Our products

AllEmbedded financeExpense managementCorporate cardsUse cases and success stories
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

Embedded Finance: Not Just For Fintechs
Embedded finance

Embedded Finance: Not Just For Fintechs

By Justin Zehmke27 June 20255 min read
Move Faster, Spend Smarter: 5 Real Stories from Companies Using Wallester
Use cases and success stories

Move Faster, Spend Smarter: 5 Real Stories from Companies Using Wallester

By Justin Zehmke20 June 20255 min read
Transforming Payments Across Industries: The Strategic Edge of White Label Cards
Embedded finance

Transforming Payments Across Industries: The Strategic Edge of White Label Cards

By Justin Zehmke29 May 20257 min read
How to Build a Profitable Card Programme Using Embedded Finance
Embedded finance

How to Build a Profitable Card Programme Using Embedded Finance

By Justin Zehmke09 May 20256 min read
Expense Cards for Contract Employees: Practical Guide
Expense management

Expense Cards for Contract Employees: Practical Guide

By Angelina Prokopenko22 April 202514 min read
Break Free from Manual Financial Reporting with Wallester Business
Expense managementEntrepreneur

Break Free from Manual Financial Reporting with Wallester Business

By Justin Zehmke22 April 20254 min read
What Is a Business Budget? The Essentials of Business Budgeting
Expense managementBusiness tools

What Is a Business Budget? The Essentials of Business Budgeting

By Angelina Prokopenko16 April 202512 min read
The Quick Guide to Building Your Fintech Brand From Scratch
Embedded finance

The Quick Guide to Building Your Fintech Brand From Scratch

By Justin Zehmke07 April 20257 min read
Why Manual Expense Reporting is Costing Your Business Money
Expense management

Why Manual Expense Reporting is Costing Your Business Money

By Justin Zehmke02 April 20256 min read
The Best 11 Embedded Finance Solutions in 2025
Embedded finance

The Best 11 Embedded Finance Solutions in 2025

By Angelina Prokopenko31 March 202513 min read
The Benefits of Modernising Your Expense Management Process
Expense management

The Benefits of Modernising Your Expense Management Process

By Justin Zehmke28 March 20257 min read
Top 7 Payroll Cards
Corporate cardsEntrepreneurFounder

Top 7 Payroll Cards

By Angelina Prokopenko17 March 202513 min read
Prepaid business cards
Corporate cards

Prepaid business cards

By Angelina Prokopenko13 March 202514 min read
Best Budgeting Apps in the UK
Expense managementEntrepreneurFounder

Best Budgeting Apps in the UK

By Angelina Prokopenko12 March 202515 min read
An Ultimate Guide to Expense Management
Expense management

An Ultimate Guide to Expense Management

By Angelina Prokopenko07 March 202514 min read
15 Best Expense Management Software of 2025
Expense management

15 Best Expense Management Software of 2025

By Angelina Prokopenko05 February 202517 min read
The Best Business Credit Cards for Advertising in 2025
Corporate cardsMedia and marketing

The Best Business Credit Cards for Advertising in 2025

By Angelina Prokopenko03 February 202519 min read
The Best Business Credit Cards for Travel in 2025
Corporate cards

The Best Business Credit Cards for Travel in 2025

By Angelina Prokopenko01 February 202516 min read
1…789…12
Wallester

Interested in Wallester?

Our sales team can help you get set up with the right solution to meet your business needs.

Contact sales
FreelancersNew

Something new is coming, be the first to know!

Visa card in colors
Explore
Business
Cards
  • Corporate cards
  • Virtual cards
  • Payroll cards
  • Platinum cards
Features
  • Expense management
  • Accounting integration
  • Budget analytics
Industries
  • Media buying
  • Online retail
  • Yacht management
  • Transport and logistics
  • Fleet management
  • Travel and hospitality
Others
  • Pricing
  • API solutions
  • Help Center
White‑Label
Payment cards
  • Virtual card
  • Prepaid card
  • Debit card
  • Credit card
  • White‑Label card
Platform overview
  • White‑Label solutions
  • Card issuing
  • BIN sponsorship
  • Payment processing
Services
  • Tokenization
  • 3D Secure
  • Fraud monitoring
  • KYC/KYB and AML
  • PSD2
  • Mobile app
  • Apple Pay
  • Google Pay
Solutions across industries
  • Banks
  • Business loan providers
  • Consumer loan providers
  • Digital assets & exchange platforms
  • E-commerce marketplaces
  • Employers & gig platforms
  • FinTech companies
  • Gift & rewards cards
  • Insurance companies
  • Membership & loyalty cards
  • Peer-to-peer loan providers
  • Streaming platforms
Developers
  • API documentation
  • Card issuing API
  • Open-source example
Company
  • About us
  • Why Wallester
  • Affiliate Program
  • Visa Principal membership
  • Media Pack
  • Contact us
  • Careers
  • Wallester blog
  • FAQ
  • Legal notice
  • Privacy policy
  • Cookie policy
  • Annual reports
  • Complaints handling procedure
  • Business account & card agreement
  • Your rights when making payments in Europe
  • Visa partner
  • Accessibility statement

© 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.