Exolix x Spark: Non-Custodial Lightning Swaps, Powered by Spark

Exolix, a non-custodial cryptocurrency exchange, has integrated Spark to power Bitcoin Lightning Network swaps for its users. The integration uses the Breez SDK's Spark implementation, enabling ultra-fast, low-fee Bitcoin transactions directly within Exolix's swap widget.

This makes Exolix one of the few non-custodial exchange services offering Lightning Network transactions where users maintain full control of their funds at every stage.

What This Enables

Exolix users can now select Lightning as a network option when swapping BTC. Behind the scenes, Spark handles the settlement: no channels to manage, no nodes to configure, no additional software to install. The experience is identical to a standard Exolix swap, just faster and cheaper.

• Near-instant settlement through Spark and the Lightning Network
• Significantly lower fees compared to on-chain Bitcoin transactions
• Fully non-custodial execution: Exolix never holds user funds or private keys
• No channels, nodes, or additional setup required for end users

Why It Matters

On-chain Bitcoin transactions can be slow and expensive during periods of network congestion. Lightning solves this, but historically required complex infrastructure to support. Spark removes that complexity entirely: Exolix integrated Lightning support through the Spark SDK without building or managing any Lightning-specific infrastructure.

The result is that users get fast, low-cost Bitcoin swaps while Exolix preserves its non-custodial architecture. This is the kind of integration Spark was built for: making Bitcoin infrastructure invisible to end users while giving platforms the tools they need to ship quickly.

About Exolix

Exolix is a non-custodial cryptocurrency exchange offering fast, private swaps across hundreds of digital assets. The platform operates without user accounts, KYC requirements, or fund custody, prioritizing simplicity and user control.

About Spark

Spark is the fastest, cheapest way to build financial applications on Bitcoin. It supports instant BTC and stablecoin transfers, near-zero fees, and native Lightning compatibility: no bridges, no wrappers, everything native to Bitcoin.