Fintech

The 2026 Fintech Stack

Scale your European SaaS or Agency with programmable Visa infrastructure.

Why I Moved to Wallester Business

Traditional banking is the bottleneck of modern business. If you are scaling Meta/Google ads or managing a remote team, you need more than just a “bank account”—you need financial infrastructure. After auditing the top providers in the EU, Wallester stands out as the most robust solution for developers and founders.

FeatureLegacy BanksWallester Business
Virtual Cards1 – 5 cards300 Free (Unlimited available)
Ad Account StabilityHigh Risk of BlocksWhitelisted for Ads (Visa Principal)
API AccessHidden/ExpensiveREST API / Webhooks Included
Monthly Fees€10 – €100+€0 (Free Tier Available)

Developer’s Perspective

Wallester is a Visa Principal Member. Unlike resellers, they provide a direct API playground and sandbox. You can treat company cards like variables—issuing, freezing, or limiting them via simple REST calls.

Automate with Code

Programmatically issue cards for every new vendor or ad campaign in seconds:

// Example: Instant Virtual Card Issuance
const response = await fetch('https://api.wallester.com/v1/cards', {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${API_KEY}` },
  body: JSON.stringify({
    type: 'VIRTUAL',
    currency: 'EUR',
    metadata: { "project": "SaaS-Automation" }
  })
});

Ready to upgrade your infrastructure?

Join 1,500+ partners and start issuing virtual cards today.


Get Your 300 Free Virtual Cards

Connect with me on LinkedIn for custom API integration advice.