The API documentation arrives on Monday. Your developer says two weeks. Six weeks later the games load. Then a few rollbacks turn out never to have reached the wallet. Finance can’t reconcile the first month, and the regulator wants a test report nobody ordered.
Most integration delays are not caused by the API itself. They come from planning: missing people, missing test cases and late paperwork. This article treats an iGaming API integration as a project. For how the technology works, see how API integration works in iGaming platforms.
Who Needs to Be Involved
| Role | What they own |
|---|---|
| Backend developer | Wallet endpoints, authentication, error handling |
| Frontend developer | Game launch, lobby, mobile behaviour |
| QA tester | Test cases, edge cases, regression |
| Finance | Reconciliation of bets, wins and rollbacks against provider reports |
| Compliance | Certification, market restrictions, responsible gambling tools |
| Provider account manager | Credentials, environments, game lists, support contacts |
Small operators often combine roles. Just make sure each line has a named owner before work starts.
Phase 1: Scope and Paperwork
Agree which providers, games and markets are in scope. Then check, market by market, that the content is certified where you will offer it. In Great Britain, new games and RNGs must be tested by an approved test house before release. Brazil requires online games to be certified by a lab recognised by the Secretariat of Prizes and Bets, and operators that use third-party technology must submit integration certificates. Starting this early avoids the most common late delay.
Phase 2: Build the Wallet First
Almost every casino game API depends on a few wallet calls: get balance, debit (place a bet), credit (pay a win) and rollback (reverse a bet or win). Public provider documentation is consistent on two points. These methods must be idempotent, meaning a repeated request with the same transaction ID must not move money twice. Credits may also be resent until your system confirms them.
Build and test these calls before anything else. Games that display nicely on a wallet that double-pays are worse than no games at all. Decide early which wallet model you use. With a seamless wallet, bets are taken straight from your player balance. With a transfer wallet, money moves into the provider’s system first. Our article on how casino game APIs work compares the two.
Phase 3: Launch, Lobby and Game List
Next come game launch (creating a session and opening the game), the game list feed and your lobby. Test on the devices your players use, not just desktop browsers. Check that games blocked for a market really are hidden for players in that market.
Phase 4: Testing
Write test cases for the failures, not only for the happy path:
- Duplicate debit and credit requests with the same transaction ID
- Credit arriving after a timeout
- Rollback of a bet that was never recorded
- Player self-excluded or over a limit while a game is open
- Session expiry mid-round
- Currency and rounding on small stakes
Then have finance reconcile a full day of test transactions against the provider’s report. If the totals don’t match in staging, they won’t match in production.
Phase 5: Go-Live Checklist
- Certification and market approvals confirmed in writing
- Production credentials stored securely and rotated from staging
- Wallet calls monitored with alerts on errors and latency
- Reconciliation report scheduled daily for the first month
- Support team briefed on how to look up a round or transaction
- Responsible gambling limits tested inside games
- Rollback plan agreed with the provider if something breaks
How Long It Takes
There is no honest single answer. Timelines depend on whether you integrate one studio or an aggregator and how mature your wallet is. Certification in your markets can take longer than the code. An aggregator integration replaces many separate projects with one, which is why most operators use one for the bulk of their content. Our guide to Gamingsoft’s API aggregator explains that model.
FAQ
What is the most common cause of integration delays?
Planning gaps rather than code. Certification starts late, nobody writes test cases for failures, or finance joins only after launch.
Can I go live in every market at once?
Only if the content is certified and approved in each one. It is common to launch market by market as approvals arrive.
Why does idempotency matter?
Because networks retry. Without it, a repeated debit or credit request can take or pay money twice.
Treat an API integration as a project with owners, phases and a checklist. Most of the surprises disappear. Build the wallet first, test the failures, start certification early and reconcile before you scale.
Gamingsoft regularly expands its network of game studio partnerships, so operators on our platform always benefit from fresh, high-quality content without any additional integration work on their end. Each new provider we onboard goes through careful quality and compliance review. If you want to be among the first to offer the latest game releases alongside proven blockbusters from established developers, Gamingsoft is the aggregation partner you need. Contact us to get started and see what is possible for your platform.
