Bitcoin Exchange Infrastructure
Complete Bitcoin infrastructure for crypto exchanges. One SDK for instant deposits, Lightning integration, and multi-asset support without operational overhead.
Exchange infrastructure is holding your traders back
Managing hot and cold wallets, running Lightning nodes, handling channel liquidity, and integrating separate stablecoins creates operational overhead and slows your team down. Traders wait 10+ minutes for on-chain confirmations, and you lose them to competitors with faster deposits. Lightning requires dedicated infrastructure that's complex to scale. Supporting BTC, Lightning, and stablecoins means maintaining three different systems, each with its own failure modes, security requirements, and integration complexity. Most exchanges spend engineering quarters building and maintaining Bitcoin rails that should just work.
What we do
Complete Bitcoin infrastructure for exchanges in one SDK
Instant deposits with 0-conf
Credit BTC deposits in under a second without waiting for block confirmations. Traders get instant access to funds and start trading immediately. No more abandoned deposits from users who won't wait 10 minutes.
Lightning without running nodes
Full Lightning Network deposits and withdrawals with no infrastructure to run. No nodes, no channel management, no liquidity provisioning, no rebalancing. Spark handles the hard parts: inbound capacity, routing, and payment reliability at the protocol layer.
Self-custodial option to reduce liability
Offer self-custodial wallets to reduce your custody burden and regulatory exposure. Users hold their own keys while still trading on your platform. You get the compliance benefits without sacrificing UX or throughput.
BTC and stablecoins in one integration
USDT and USDB live natively on Spark alongside bitcoin. One SDK, same instant settlement, no separate chains or bridges. Your traders move between BTC and stablecoins without leaving the platform or waiting for cross-chain confirmations.
Why Spark
Scale deposits and withdrawals without scaling ops
Credit deposits instantly, no confirmation waiting
On-chain deposits settle in under a second with 0-conf. Traders start trading immediately instead of abandoning deposits. Lightning deposits and withdrawals work without routing failures or liquidity issues.
No hot wallet management, no channel rebalancing
Traditional exchanges run hot wallets for withdrawals and Lightning nodes for fast payments. Spark abstracts all of this: no keys to secure, no channels to manage, no liquidity to provision. You call an API, withdrawals work.
BTC, Lightning, and stablecoins: one protocol, one integration
Other platforms force you to integrate Bitcoin on-chain, run separate Lightning infrastructure, and connect to external stablecoins on different chains. Spark handles all three in the same SDK with the same instant settlement.
Self-custodial trading option reduces your custody burden
Offer self-custodial wallets where users hold their own keys but still trade on your order book. You reduce regulatory overhead from holding customer funds while maintaining the same trading experience and throughput.
Scale throughput without adding operational overhead
As deposit and withdrawal volume grows, you don't need to provision more nodes, open more channels, or hire more ops engineers. Spark scales at the protocol layer: your integration stays the same whether you process 100 or 100,000 transactions per day.
Products
Instant Bitcoin Deposits
Receive on-chain bitcoin in seconds with 0-conf
Self-Custodial Lightning
Full Lightning send and receive, no nodes or channels
Bitcoin Buy and Sell
The cheapest way to buy and sell bitcoin directly to a self-custodial wallet
Bitcoin Rewards
Distribute bitcoin rewards and incentives at scale
Cross-Chain Bitcoin Swaps
The fastest, cheapest way to move bitcoin into stablecoins and other assets
Stablecoin Issuance
Issue and manage stablecoins natively on Bitcoin
Spark is transformative. It redefines what Bitcoin can be, evolving it from a monetary network into an application platform.
FAQ
Spark validates on-chain transactions at broadcast time and credits deposits instantly. The protocol handles confirmation risk so your traders don't wait for blocks. You can set risk thresholds based on deposit size if needed.
No. Spark handles all Lightning infrastructure at the protocol layer. No nodes to operate, no channels to open or rebalance, no liquidity to provision. You integrate the SDK and payments just work.
USDT (Tether) and USDB (issued by Brale via Flashnet) are live on Spark today. Both are native Bitcoin assets with the same instant settlement as BTC: no bridges, no wrapped tokens, no separate chains to integrate.
Yes. Spark supports both models. You can run traditional custodial trading or let users trade with self-custodial wallets where they hold their own keys. Mix and match based on user preference and regulatory needs.
The Spark SDK is available for server-side TypeScript/Node.js environments and integrates with your existing deposit/withdrawal flow. You can migrate incrementally: start with one asset (BTC, Lightning, or stablecoins) and expand from there without breaking existing systems.
Build faster deposits and withdrawals with Spark
Spark integrates into your exchange and handles the complexity that comes with Bitcoin, Lightning, and stablecoins.