Stop overpayingon cross-chain swaps

Rempart queries the top bridge aggregators in parallel, shows what you actually receive after fees, and lets you execute from your own wallet. Non-custodial. No account.

Ethereum
Arbitrum
Base
Optimism
Polygon
BNB Chain
Avalanche
Solana
Robinhood Chain

Compare routes now

From
Slippage tolerance
To

Enter an amount to compare routes. Wallet optional.

How it works

Three steps between you and the best route

01

Enter your swap

One amount, a source and a destination token. No wallet needed just to compare: the routes come up either way.

02

Compare every route

LI.FI, Relay, deBridge and Squid are queried in parallel. Routes are ranked by what you actually receive after fees, with gas, bridge fees and duration all shown.

03

Execute from your wallet

You sign directly to the chosen protocol's audited contracts. Rempart never holds, relays or routes your funds.

Security

Non-custodial by design

No account, no deposit address, no contract deployed by us. Every transaction offered for signature is checked against a per-provider allowlist of known contract addresses. An address outside that list is blocked before it ever reaches your wallet.

See the full security model

Transparency

Every fee on the table

The comparison ranks routes by the amount you actually receive, not by a headline rate. Fees we don't control, like an aggregator's own affiliate cut, are surfaced and converted to USD rather than hidden. What you see is what lands in your wallet.

Coverage

Nine chains, the top aggregators

Chains

EthereumArbitrumBaseOptimismPolygonBNB ChainAvalancheSolanaRobinhood Chain

Aggregators

LI.FIRelaydeBridgeSquid