Performance and Speed
Published 6/30/2026, 10:52:23 AM
Breez's Bitcoin-to-stablecoin payment service, integrated via its SDK and Spark Layer 2 solution, is designed to provide near-instant, non-custodial cross-chain remittances. By leveraging the Lightning Network and liquidity providers like Boltz and Flashnet, the system enables users to send Bitcoin that is automatically converted into USDC or USDT across more than 30 blockchain networks [Source: https://sdk-doc-spark.breez.technology/].
Performance and Speed
The service is optimized for high-speed settlement, particularly on the Bitcoin-to-conversion leg. While end-to-end speed is influenced by the finality of the destination chain, the underlying Lightning infrastructure allows for rapid processing.
| Metric | Performance Benchmark |
|---|---|
| Lightning Settlement | < 0.5 seconds (Institutional test for $1M payment) [Source: https://sdk-doc-spark.breez.technology/] |
| Solana Finality | ~0.4 seconds [Source: https://sdk-doc-spark.breez.technology/] |
| Base Finality | < 2.0 seconds [Source: https://sdk-doc-spark.breez.technology/] |
| TRON Finality | ~3.0 seconds [Source: https://sdk-doc-spark.breez.technology/] |
Fee Structure
Breez utilizes a transparent, low-cost fee model that makes small-to-medium transfers significantly cheaper than traditional remittance services.
- Swap Service Fee: Approximately 0.1% of the total amount sent (dynamic based on liquidity) [Source: https://sdk-doc-spark.breez.technology/].
- Base Transaction Fees: Includes a "Lockup" fee of ~34 sats and a "Claim" fee of ~19 sats [Source: https://sdk-doc-spark.breez.technology/].
- Cost Example: Sending 10,000 sats (
$6.00) incurs a total cost of roughly 63 sats ($0.04) [Source: https://sdk-doc-spark.breez.technology/].
Network Support and Liquidity
The service supports delivery to over 30 networks, allowing users to target the most liquid or cost-effective corridors for specific regions.
- Supported Chains: Includes high-throughput networks (Solana, Sui, Sei, Aptos), Ethereum Layer 2s (Arbitrum, Base, Polygon), and established stablecoin hubs (TRON, Stellar) [Source: https://sdk-doc-spark.breez.technology/].
- Liquidity Routing: The SDK automatically calculates the optimal route through providers like Flashnet and Boltz [Source: https://breez.technology/sdk/].
- Adoption: The Breez SDK is integrated into over 75 applications, including Cake Wallet and Deblock [Source: https://breez.technology/sdk/].
Current Limitations and Reliability
While the system offers high performance for outbound payments, it currently has specific functional constraints:
- Outbound Only: The feature currently only supports sending BTC to be received as stablecoins. Inbound stablecoin-to-BTC transfers are listed as "coming soon" [Source: https://sdk-doc-spark.breez.technology/].
- Volume Verification: While the Lightning Network reached a milestone of $1 billion in monthly volume in late 2025, Breez-specific transaction volume and reliability metrics for this 30-chain feature have not been independently confirmed [Note: not independently confirmed].
In summary, Breez's 30-chain payment service performs as a high-speed, low-cost outbound bridge from Bitcoin to the broader stablecoin ecosystem, though its full utility remains pending the release of inbound conversion features.