Spark and WDK unlock programmable, resilient Bitcoin over Lightning: instant global payments without compromising custody or privacy.
We care deeply about network effects. Issuing on Spark is a no-brainer for Brale, it has the potential to bring billions of people to stablecoins.
Our goal is to make Xverse the definitive home of BitcoinFi, and integrating Spark is a monumental step.
Spark is transformative. It redefines what Bitcoin can be, evolving it from a monetary network into an application platform.
We're excited to build on Spark to unlock powerful Bitcoin-based rails for all the users we serve without requiring them to be crypto-native.
Flashnet couldn't exist without Spark. It's the best infrastructure for building real money apps on Bitcoin, period.
Yes. Fully open source at github.com/buildonspark/spark.
Spark is a Bitcoin L2 that lets you move Bitcoin and Bitcoin-native assets (including stablecoins) instantly, at near-zero cost, while staying fully connected to Bitcoin's infrastructure. No bridges, no wrappers: everything is native to Bitcoin.
Transfers within Spark are fee-free. You only pay Bitcoin network fees when depositing or withdrawing.
Yes. Spark is natively interoperable with the Lightning Network: no nodes or channels required. It's the easiest way to add Lightning to your product. Spark solves this: no channels, no liquidity management, no nodes to run, and true offline receive. Plus, Spark natively supports stablecoins.
Yes. The Issuer SDK lets you create, mint, burn, freeze, and manage tokens (including stablecoins) directly on Bitcoin.
The Wallet SDK (TypeScript, React Native) and Issuer SDK (TypeScript) are available now. Breez also offers a Rust SDK with bindings for Swift, Kotlin, Python, Flutter, Go, C#, and WebAssembly.
BTKN is Spark's native token standard for issuing assets on Bitcoin. It's fast, cheap, and moves natively on Bitcoin without bridges or wrappers.