Payment gateway integration for iGaming platforms: technical and commercial overview

A successful cashier is the product of two parallel projects: a technical integration that delivers a smooth user experience, and a commercial setup that unlocks high approval rates and competitive fees. AXPay was built so that both tracks can run in parallel and complete in days rather than weeks. This article explains what payment gateway integration actually involves for an iGaming operator.

The technical track

The integration is REST-based and language-agnostic. Engineers receive sandbox credentials immediately after approval and can begin building against documented endpoints for deposits, withdrawals, status checks, refunds and reconciliation. Webhooks deliver asynchronous events such as authorisation results, settlement updates and chargeback notifications, removing the need for polling.

Most casino platforms map the integration to their existing cashier abstraction layer, which means new payment methods can be enabled later without code changes. This future-proofs the build for international expansion.

The commercial track

While developers work in the sandbox, the AXPay risk team reviews the merchant file. Required documents are standard for iGaming — corporate paperwork, ownership structure, gaming licences where applicable, and projected volumes. Most files clear within 24-48 hours because the underwriting team is already familiar with the vertical.

Pricing is finalised during this phase. There are no setup fees, no volume caps and no minimum commitments — fees are transparent and tailored to expected traffic. Multiple merchant IDs are configured where helpful to spread volume and improve approval rates.

A typical timeline

• Day 1. Application submitted, sandbox credentials issued.

• Days 2-3. Underwriting completes, commercial terms finalised.

• Days 3-6. Engineering builds and tests deposit, withdrawal and webhook flows.

• Day 7. Production credentials activated, traffic ramps up gradually.

Operators with mature platforms often go live faster; those with more complex requirements may take a little longer, but the median is well inside two weeks.

What changes after go-live

Once traffic is flowing, the focus shifts to optimisation. The reporting dashboard exposes approval rates by method, geography and issuer, which lets the operator and AXPay's account team identify quick wins — adding a local method, rebalancing routing, tightening or relaxing fraud rules. Withdrawal speed is monitored continuously and tuned to match player expectations.

Chargeback protection runs in the background, with the AXPay team contesting invalid claims to keep ratios within scheme thresholds. This is particularly important for casinos running aggressive bonus campaigns that can otherwise attract abuse.

Getting the project started

The fastest way to begin is to submit a short application through the AXPay site. A specialist follows up the same business day to walk through technical requirements, expected volumes and pricing.

Operators who want background reading before applying can find about this in the dedicated solutions overview, which covers the architecture, supported methods and case studies in more depth. The form is straightforward and starts both the technical and commercial tracks simultaneously.