Across vs. Chainflip
Rift Research
Last updated
TLDR: Across is an intent-based interoperability protocol. Chainflip is a native cross-chain JIT AMM. Consider Across when you are moving canonical USDC or ETH between major chains and care about speed. Consider Chainflip when you want a direct native swap, especially mid-size Bitcoin. 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.
Chainflip. Chainflip is a native cross-chain AMM. Validators run a threshold-signature vault set and liquidity providers quote through a just-in-time AMM, so users swap native assets (including Bitcoin) without wrapped IOUs. Official docs: Chainflip Docs. App: chainflip.io.
Short version
| Dimension | Across | Chainflip |
|---|---|---|
| Role | Intent-based interoperability protocol | Native cross-chain JIT AMM |
| Fee | Market-quoted relayer spread and LP fee; no separate flat protocol toll | Protocol fee plus LP spread on the JIT AMM |
| Coverage | Supported mainnet networks, with availability determined by the exact token pair and route | Bitcoin, Ethereum, Solana, Arbitrum, Polkadot and other connected chains |
| Settlement | Canonical assets delivered by bonded relayers | Native assets via threshold-signature vaults |
| Trust model | Relayer-funded fills and the settlement and dispute mechanisms of the deployed Across contracts | Validator-controlled threshold-signature vaults; verify the current validator and upgrade configuration |
| Good fit for | Canonical USDC and ETH transfers between supported chains | Direct native swaps, especially mid-size Bitcoin |
| Docs | Across Docs | Chainflip 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
Chainflip may fit when:
- The pair is a native asset Chainflip prices well (BTC, ETH, SOL, USDC)
- You want native settlement, not a wrapped representation
- You prefer going direct to the AMM rather than through a meta-aggregator
Key differences
Across and Chainflip should be compared on the job you need to complete: the input asset, destination asset and chain, trade size, execution method and custody assumptions. They may overlap on some routes and complement each other on others. A broader chain list or faster advertised fill does not establish a better net rate. Compare executable quotes in the same window, including gas and every underlying step.
When to use which
- Use Across when you are moving canonical USDC or ETH between major chains and care about speed.
- Use Chainflip when you want a direct native swap, especially mid-size Bitcoin.
- 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 Chainflip?
Neither has a universal price advantage. Across: Market-quoted relayer spread and LP fee; no separate flat protocol toll. Chainflip: Protocol fee plus LP spread on the JIT AMM. 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 Chainflip?
Only on overlapping pairs and chains. When both can quote the same route, take the better net output after fees and time. When only one supports the asset or chain, that one is the only option.
Where are the official Across and Chainflip docs?
Across: Across Docs. Chainflip: Chainflip 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
- Chainflip docs: Chainflip Docs
- Chainflip app: chainflip.io
- Chainflip — Protocol overview: docs.chainflip.io/protocol
- Chainflip — JIT AMM / LP model: docs.chainflip.io/lp/how-liquidity-provisioning-works
Get the Best of Both With Rift
Rift is a strong alternative to choosing between Across and Chainflip. It brings routes from both together with additional venues on supported pairs, comparing available quotes to find the best net execution for your order. You get the strengths of both through one API.
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.