Across vs. LayerZero
Rift Research
Last updated
TLDR: Across is an intent-based interoperability protocol. LayerZero is an omnichain messaging protocol. Consider Across when you are moving canonical USDC or ETH between major chains and care about speed. Consider LayerZero when you are a builder who needs cross-chain messages or OFTs. Confirm the live winner on rates.gg.
What each protocol is
Across. Across is an intents protocol for bridging and cross-chain swaps. Relayers front destination liquidity. Across advertises approximately two-second fills on supported mainnet routes; actual timing depends on the route. Its intent settlement and refund mechanisms are separate from that initial fill. Official docs: Across Docs. App: across.to.
LayerZero. LayerZero is interoperability infrastructure. Applications send messages and OFT tokens across supported chains. It is not a user-facing swap venue. Applications can build transfers and swaps on LayerZero. Compare an executable transfer or app route, including its configured security, rather than treating the messaging protocol as a liquidity pool. Official docs: LayerZero Docs. App: layerzero.network.
Short version
| Dimension | Across | LayerZero |
|---|---|---|
| Role | Intent-based interoperability protocol | Omnichain messaging protocol |
| Fee | Market-quoted relayer spread and LP fee; no separate flat protocol toll | Set by the application and the chosen verifier stack |
| Coverage | Supported mainnet networks, with availability determined by the exact token pair and route | Supported LayerZero deployments; each application or OFT has its own route coverage |
| Settlement | Canonical assets delivered by bonded relayers | Defined by the omnichain application (OApp / OFT) |
| Trust model | Relayer-funded fills and the settlement and dispute mechanisms of the deployed Across contracts | Immutable endpoints plus configurable DVN / verifier sets per app |
| Good fit for | Canonical USDC and ETH transfers between supported chains | Builders who need cross-chain messages or OFTs |
| Docs | Across Docs | LayerZero Docs |
Where each fits
Across may fit when:
- You are moving USDC or ETH between major supported chains
- Fast destination fills matter; confirm the estimate for your route
- You want a dedicated intent rail rather than a meta-aggregator
LayerZero may fit when:
- You are building an OApp, OFT or other messaging product
- You need a general interoperability layer, not a swap UI
Key differences
LayerZero provides messaging and token-transfer infrastructure. Across provides a trading or execution product. A LayerZero-based app can be part of a route, but its liquidity, fees and application security must be evaluated separately. Compare complete executable routes, not a messaging fee with a finished swap quote.
When to use which
- Use Across when you are moving canonical USDC or ETH between major chains and care about speed.
- Use LayerZero when you are a builder who needs cross-chain messages or OFTs.
- If both can quote the same route, take the better net output after fees, time and settlement type. Check that print on rates.gg.
FAQ
Which is cheaper, Across or LayerZero?
Neither has a universal price advantage. Across: Market-quoted relayer spread and LP fee; no separate flat protocol toll. LayerZero: Set by the application and the chosen verifier stack. Compare executable quotes for the same size, destination and time window, including gas, underlying venue costs and any extra transfer. Expected output and minimum received are different figures; compare like with like.
Is Across a substitute for LayerZero?
They operate at different layers. Compare the specific LayerZero-based app or transfer route with the other product for the same outcome; LayerZero messaging alone is not a complete swap service.
Where are the official Across and LayerZero docs?
Across: Across Docs. LayerZero: LayerZero Docs. Live rate comparison: rates.gg.
Official sources
- Across docs: Across Docs
- Across app: across.to
- Across — Introduction: docs.across.to/introduction
- Across — Features and fill times: docs.across.to/introduction/features
- Across — API reference: docs.across.to/api-reference
- LayerZero docs: LayerZero Docs
- LayerZero app: layerzero.network
- LayerZero — V2 overview: docs.layerzero.network/v2
- LayerZero — Crosschain development: docs.layerzero.network/crosschain
Get the Best of Both With Rift
Rift is a strong alternative for executing the full trade. It brings Across routes and supported LayerZero-based transfers together with additional venues through one API, so you can compare complete routes instead of assembling the steps yourself.
Rift adds no router fee and uses secure hardware enclaves to enforce noncustodial execution. Underlying venue fees, spreads and network costs still apply, and availability depends on the asset, chain and order size. The live quote shows the route and expected output.