No credit card required
Sign up, get a test API key, and start calling the spin endpoint immediately. The free tier is not a time-limited trial.
Free Tier
Cymba gives developers a free API key, full dashboard access, and a working slot game config from day one. Build, test, and validate your integration before you need a paid plan.
API example
POST /api/v1/spin
Authorization: Bearer cy_test_...
{
"config": "starter-5-reel",
"lines": 20
}
{
"result": {
"round_id": "01JR1K7M...",
"grid": [[4,2,1],[2,2,3],[1,2,5]],
"summary": {
"total_multiplier": 0,
"breakdown": {}
}
},
"provably_fair": {
"server_seed_hash": "b5d2a9...",
"nonce": 1
}
}
Cymba's free tier is a full development environment, not a stripped-down preview.
When you create a free account you get a test API key, access to the dashboard, the config editor, the playground spin tester, RTP calculation, PAR sheet exports, and provably fair material on every spin response. You can build and test a complete integration before paying anything.
The free tier is rate-limited and intended for development rather than live player traffic. It does not expire after a trial period.
Building a slot game integration has a lot of moving parts: config design, API calls, result parsing, front-end rendering, feature event handling, and provably fair flows.
A free tier that gives you the full API surface means you can work through all of those pieces without billing pressure. By the time you need a production key, the integration is already built and tested.
Cymba test API keys call the same spin engine as production keys. Spin results include real grid data, win evaluations, feature events, and provably fair fields. The response shape does not change when you switch to a live key.
That means your integration code does not need to change at production time. You swap the key prefix from cy_test_ to cy_live_ and point at production.
The fastest path:
/api/v1/spin from your own app with the config ID.total_multiplier and apply it to your player's stake.From there you can edit the config, recalculate RTP, export a PAR sheet, and test edge cases in the playground.
The free tier is rate-limited and not suitable for production player traffic. For live deployments with real volume, a paid plan provides production API keys with higher limits and SLA coverage.
Cymba does not handle wallets, balances, player accounts, licensing, or compliance on any tier. Those are platform responsibilities.
Start with a free API key, clone a template, and run your first provably fair spin.