Across Protocol vs Synapse Protocol
A detailed head-to-head comparison of Across Protocol and Synapse Protocol — pricing, features, and which one wins for different use cases.
Across Protocol
Intent-based cross-chain bridge with the fastest settlement and lowest fees on EVM routes
Across Protocol is an intent-based bridge that has become the fastest and most capital-efficient way to move assets between Ethereum mainnet and its major Layer 2 networks — Arbitrum, Optimism, Base, …
Full review →Synapse Protocol
Widely-used cross-chain bridge and AMM with near-zero-fee stablecoin routes
Synapse Protocol is one of the most widely-used cross-chain bridges, combining a generalized messaging layer with a cross-chain AMM (the stableswap-style 'nUSD' and nETH pools) that enables cheap, fas…
Full review →Feature Comparison
| Feature | Across Protocol | Synapse Protocol |
|---|---|---|
| Settlement Time | ~2 minutes | ~1-10 min |
| Bridge Model | Intent-based (relayer network) | Liquidity network + AMM |
| Fee Model | Dynamic LP fee only | Low bridge + swap fee |
| Canonical Security | ✓ | ✗ |
| Cross Chain Messages | ✓ | ✓ |
| Governance Token | ✓ | ✓ |
| Multi Chain | ✓ | ✓ |
| Self Custody | ✓ | ✓ |
| Arbitrary Messaging | ✗ | ✓ |
| Non Evm Support | ✗ | ✗ |
Across Protocol Pricing
Across Protocol
Free (LP fee only)
Free
- ✓12+ EVM chains
- ✓~2 minute settlement
- ✓0.05–0.15% LP fee
- ✓USDC, ETH, WBTC, DAI, USDT
- ✓No protocol fee
Synapse Protocol Pricing
Synapse Protocol
Free (bridge fee only)
Free
- ✓Cross-chain AMM bridge
- ✓Near-zero-fee stablecoin routes
- ✓Broad EVM chain support
- ✓Arbitrary messaging for devs
- ✓SYN governance token
Verdict: Which Should You Choose?
Across Protocol is the better pick if you need fastest evm bridge — ~2 minutes vs hours for canonical bridges. Synapse Protocol wins when battle-tested with enormous cumulative volume. Both are production-ready — the right choice depends on your team's workflow and budget.