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.
| Feature | Legacy Banks | Wallester Business |
|---|---|---|
| Virtual Cards | 1 – 5 cards | 300 Free (Unlimited available) |
| Ad Account Stability | High Risk of Blocks | Whitelisted for Ads (Visa Principal) |
| API Access | Hidden/Expensive | REST 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?
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Connect with me on LinkedIn for custom API integration advice.