Online slots API and slot games provider

What is an online slots API?

An online slots API is a single integration that lets an operator launch thousands of slot games from many studios without building a separate connection to each one. As your slot games API provider, SoftAggregator aggregates the catalogue, normalises every title's metadata and handles game launch and wallet messaging behind one consistent interface.

Slots are the backbone of almost every online casino lobby — they drive the majority of sessions, spins and gross gaming revenue. That makes the depth and freshness of your slot catalogue a direct lever on player retention. With our aggregation platform you get breadth (50+ providers), depth (the full back-catalogue) and freshness (new releases added continuously) without any extra engineering each time a studio ships a hit.

You pull the game list, request a launch URL for any slot and embed it in your own lobby. A seamless wallet handles every bet and win, so player funds always stay on your platform.

Slot types and what's included

One integration covers the full spectrum of slot formats players expect:

• Video slots — the modern standard, with rich features, expanding wilds and bonus rounds.
• Megaways and high-volatility slots for players chasing big multipliers.
• Jackpot slots — network and in-game jackpots that drive retention and big-win excitement.
• Feature-buy titles that let players buy directly into the bonus round.
• Classic and fruit slots for players who prefer simpler mechanics.
• Free rounds awarded programmatically on supported games to power promotions.

Each game in the list endpoint comes with its thumbnail, category, free-round support flag, demo-play flag and a stable launch hash, so building and merchandising your slots lobby is straightforward.

How slots integration works

The slots API is a single REST API. You authenticate with the credentials issued after approval, call the game-list endpoint to pull every slot, create a player and request a launch URL that you load in an iframe. For free spins, you call the free-rounds endpoint with the slot, number of spins, bet level and validity period, then list or remove them as needed.

Money flows through the seamless wallet: our platform calls your callback for each spin (debit) and each win (credit), with a unique transaction id for de-duplication. You can also offer demo play for any supported slot. Go-live is four steps — register, get approved, integrate and test in the sandbox, then top up credit and open the slots to players. Full detail is in our API documentation.

Why operators choose SoftAggregator for slots

• The freshest catalogue. New slot releases reach your lobby continuously with no extra integration work.
• One balance, one integration. The seamless wallet keeps player funds on your platform.
• Fully opaque white-label. Every slot runs under your brand and domain; providers stay invisible.
• Promotion tooling. Programmatic free rounds for welcome offers, reloads and retention campaigns.
• Live reporting. Per-game bets, wins, RTP and GGR so you can merchandise your best performers.

Online slots API FAQ

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