Whatever you're building, money is the hard part. We handle it.
One SDK for instant Bitcoin, Lightning, and stablecoin payments: self-custodial, sub-second, and fee-free inside the network.
Bitcoin E-Commerce Payments
Accept Bitcoin and Lightning payments at checkout with instant confirmation, stablecoin settlement, and no chargebacks. Built for e-commerce platforms and payment gateways.
Learn more ->
Bitcoin Exchange Infrastructure
Complete Bitcoin infrastructure for crypto exchanges. One SDK for instant deposits, Lightning integration, and multi-asset support without operational overhead.
Learn more ->
Bitcoin Gaming Payments
Instant Bitcoin deposits and withdrawals for gaming platforms. Lightning-speed payments, self-custodial architecture, and stablecoin support with no custody liability or infrastructure overhead.
Learn more ->
Bitcoin for Neobanks
Add Bitcoin, Lightning, and stablecoins to your banking app with one SDK. Self-custodial infrastructure built for digital banks.
Learn more ->
Bitcoin Payroll API
Pay employees and contractors in Bitcoin instantly via Lightning. Self-custodial, cross-border, instant settlement with stablecoin options. Built for payroll platforms and HR tech companies.
Learn more ->
Bitcoin Remittance Infrastructure
Cross-border payment infrastructure on Bitcoin rails. Instant settlement, sub-cent fees, and 24/7 availability. Replace SWIFT with Lightning and stablecoins.
Learn more ->
Bitcoin Rewards API
Distribute Bitcoin rewards to millions of self-custodial wallets in one API call. Cashback, loyalty, and referral payouts that settle in under a second and cost nothing inside Spark.
Learn more ->
Bitcoin Wallet SDK
The best platform to run bitcoin and stablecoin operations. One SDK for instant payments, self-custodial wallets, and native stablecoins.
Learn more ->
Instant Bitcoin Deposits
Credit on-chain Bitcoin deposits instantly with 0-conf. No waiting for block confirmations, no pending states, no support tickets about slow deposits.
Learn more ->
Lightning Payment API
The fastest way to integrate Lightning Network payments. Full send and receive via API with no nodes, no channels, and sub-second settlement.
Learn more ->
Self-Custody Lightning Wallets
Give your users real Lightning payments with real self-custody. No nodes, no channels, no liquidity headaches: just instant Bitcoin that users actually control.
Learn more ->
Stablecoin Issuance on Bitcoin
Issue stablecoins natively on Bitcoin with instant settlement, no bridges, and full programmability. USDT and USDB already live on Spark.
Learn more ->Trusted by the world's best bitcoin developers.
From wallets to stablecoin issuers, the best teams ship on Spark.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.
Not sure where to start?
Tell us what you're building and we'll map Spark to your use case.