Layerswap

TLDR

Layerswap is a cross-chain bridging and swapping service operated by Layerswap Labs, Inc. (founded 2021). Its core offering is fast, low-fee asset transfers across more than 80 blockchains and 15+ centralized exchanges — including direct CEX-to-chain routes that skip the usual withdrawal-then-bridge detour. With the launch of its V8 protocol in mid-2024, Layerswap moved to a trustless, oracle-free atomic bridging architecture based on an enhanced version of Hashed Time Lock Contracts (HTLCs), removing reliance on multisig committees, oracles, or Decentralized Validator Networks.

Solana is a supported destination network. Transfers land in compatible wallets — Phantom, Solflare, Glow, and others — from any supported source chain or exchange.

Core Mechanism

Layerswap's V8 protocol, called the Atomic Bridging Protocol, is built around PreHTLCs — a compact enhancement to the standard HTLC design. An HTLC locks funds on the source chain behind a cryptographic hash preimage; once the recipient reveals the preimage on the destination chain to claim the funds, the same preimage is used to unlock the corresponding payment on the source side. If the transfer is not completed within a set time window, funds automatically return to the sender. This eliminates counterparty risk without relying on any external oracle or validator set.

The PreHTLC standard is intentionally minimal: roughly 200 lines of code. Any network can integrate permissionlessly — anyone can deploy the PreHTLC contract to a supported VM and begin running liquidity provider (LP) infrastructure without approval from Layerswap. This permissionless LP model means network coverage can expand independently of the core team, and LP competition can drive down fees over time.

Pre-V8, Layerswap used a combination of sidechains, notary schemes, and cross-chain AMMs. The V8 redesign consolidated the architecture around atomic swaps as the single security primitive.

CEX-to-Chain Bridging

One of Layerswap's original differentiators — still prominent in its product — is direct transfers from centralized exchanges to on-chain wallets. Integrated exchanges include Binance, Coinbase, Kraken, and more than a dozen others. Conventionally, moving funds from a CEX to an L2 or alternative L1 requires a withdrawal to an L1 address followed by a bridge transaction, which can take 30–60 minutes and incur two sets of fees. Layerswap routes the transfer as a single step, cutting that to 1–2 minutes and reducing fees materially.

This CEX integration makes Layerswap particularly relevant for users onboarding to Solana from custodial platforms, bypassing the need to first withdraw to Ethereum mainnet before bridging.

Supported Networks and Tokens

At the time of writing, Layerswap supports transfers across 72–80+ chains. Confirmed networks include Solana, Ethereum, Bitcoin, Arbitrum, Optimism, BNB Chain, Starknet, zkSync Era, TON, Fuel, Scroll, and Astar zkEVM. The interface surfaces relevant tokens for each route, with supported assets varying by chain pair. No single native protocol token exists; Layerswap does not issue its own asset.

Fees and Speed

Layerswap charges a flat fee in the range of $2–$3 per swap, with the exact amount varying by network and asset. The platform claims this represents roughly a 10% reduction versus comparable on-chain transfers, though the gap widens most for routes that would otherwise require multiple hops. Transfer completion typically takes 1–2 minutes end-to-end.

Security and Incident History

The PreHTLC atomic-swap design does not rely on a trusted third party to authorize or validate transfers; the cryptographic lock-and-release mechanism enforces settlement at the protocol level. The platform has not reported smart contract exploits or fund losses attributable to protocol vulnerabilities.

One significant security incident occurred in March 2024: Layerswap's domain was compromised in a DNS hijacking attack. Approximately 50 users who interacted with the spoofed site lost a combined $100,000 in assets. Layerswap Labs reimbursed all affected users in full and paid additional bonuses. The incident was an infrastructure-level compromise rather than a protocol or smart-contract exploit.

No formal third-party smart contract audit results are publicly documented in available sources.

Team and Background

Layerswap is operated by Layerswap Labs, Inc., incorporated in 2021. The project is associated with Bransfer in some early references, suggesting the bridge product grew out of a prior payments infrastructure effort. Individual team members are not prominently disclosed in public materials. The GitHub repository (github.com/layerswap/layerswapapp) is public, and the PreHTLC contracts are open-source, allowing independent review.

Solana Ecosystem Fit

For the Solana ecosystem, Layerswap serves as an entry-point bridge — an onramp for users arriving from Ethereum L2s, BNB Chain, or directly from CEX holdings. Its permissionless LP model means Solana-specific liquidity can be provisioned independently. Transfers land in standard Solana wallets with no wrapped-asset complexity on the user side for native assets.

Layerswap does not provide staking, lending, or other DeFi-native functionality on Solana; it is a transfer layer rather than a yield or liquidity protocol. Its primary value to the Solana ecosystem is reducing friction at the entry point — particularly for users coming off centralized exchanges who would otherwise face the Ethereum withdrawal-then-bridge path.