Cross-chain Swaps evaluated across measured all-in cost, trust model and exploit record, published price versus observed price, and chains actually served.
AC
#1 of 7 · published ranking
Across
80ChainChoice Score
4199
Why it leads
Best in the pool on bridge security model (8/10; next 7/10)
Cost
Not priced· No comparable price is published
Joint #1 · ordered by name, A to Z
No provider can pay for a position in this table. The code that computes this order cannot read which links earn us a commission, and every build proves it. Every score below rebuilds from the published criteria.Ranking 2026.08 · 4 criteria · 7 products · same inputs, same order
Personal comparison
Cross-chain Swaps ranked comparison
No comparable price is published; ranking still uses verified product evidence.
RankProviderBest fitScore
1
ACAcrossIntent bridge settled by UMA optimistic...Top ranked
Measured all-in cost — 8/10Trade-off: The 2-second fill you are quoted is the relayer fronting you capital, not settlement....
Ranked on 4 published criteria weighted 35/30/20/15, which set goal alignment — 30 of the 86 points. The rest: regional access 20, evidence depth 18, ease of use 10, institutional trust 8. Profile match is shown in breakdowns but carries no weight.
Audit
Infrastructure
Methodology
2026.09.15
published 2026-09-16
Providers tracked
980+
across 119 categories
Last verified
2026-09-14
newest dated pricing or sentiment read
Named on the roster
2 people
managing directors · 6 automated processes
Decision guide
What matters most before choosing in this category
The best route depends on what you are willing to trust while your assets are in transit, because that is what differs most between these. Some rely on an external validator set, some on the destination chain verifying the source, some on liquidity providers taking the other side. This page scores the trust model alongside the exploit record — the most-stolen-from part of crypto, and a matter of history rather than opinion — then the gap between the quoted price and the measured all-in cost, which is where the real charge usually hidessaction or trust risk you are willing to accept. For most users, the safest cross-chain swap route is the one with the clearest route and least ambiguity, not the one that simply looks fastest.
What matters most before choosing in this category
The best route depends on what you are willing to trust while your assets are in transit, because that is what differs most between these. Some rely on an external validator set, some on the destination chain verifying the source, some on liquidity providers taking the other side. This page scores the trust model alongside the exploit record — the most-stolen-from part of crypto, and a matter of history rather than opinion — then the gap between the quoted price and the measured all-in cost, which is where the real charge usually hidessaction or trust risk you are willing to accept. For most users, the safest cross-chain swap route is the one with the clearest route and least ambiguity, not the one that simply looks fastest.
How large is the transfer, and how often will you repeat it?
Do you know what you are trusting for the funds to arrive — a dispute game, a validator set, or a multisig?
Would you accept a slower route in exchange for a canonical bridge rather than a liquidity network?
Current editor lead
Expert review and scoring weights
AC
AcrossData checked Sep 2026
Intent bridge settled by UMA optimistic oracle with relayer prefunding
Intent bridge settled by UMA optimistic oracle with relayer prefunding. Strongest on measured all-in cost (8/10): Live /suggested-fees quote on 2026-09-14 for 1000 USDC Ethereum to Arbitrum: outputAmount 999892863 against 1000000000 in, so 0.107137 USDC total (1.07 bps) with lpFee explicitly 0. At 100 USDC the cost was 17134 units (1.71 bps), so the fee stays proportional rather than being swamped by a fixed component. Marked down only because… Weakest on chains actually served (3/10): The live /swap/chains endpoint returns 23 chains, matching the introduction page's "support for 23 chains" — the second-narrowest set here, ahead of only deBridge's 17.
Best forMeasured all-in cost — 8/10
Main tradeoffThe 2-second fill you are quoted is the relayer fronting you capital, not settlement. The relayer is repaid later through a root bundle that must survive the HubPool's challenge window (liveness() read on-chain as 1800 seconds on 2026-09-14), and that wait is priced into the capital fee you pay. If no relayer wants your route or size, you fall back to the slow path: the API returns a maxDepositInstant below its maxDeposit, so transfers above the instant cap on this route are explicitly not instant.
Verify before signupDocs state: "totalFee = inputAmount - outputAmount", split into an LP Fee (utilization-based, formula R(U) = R0 + (min(U-bar, U) / U-bar) * R1 + (max(0, U - U-bar) / (1 - U-bar)) * R2) and a Relayer Fee covering gas, capital opportunity cost and capital at risk. No headline percentage is published; the docs now say "/suggested-fees is legacy" and point new integrations to the /swap/approval response. Optional integrator appFee settable 0 to 1 (0.01 = 1%). Measured live 2026-09-14 04:00 UTC: 1000 USDC Ethereum to Arbitrum returned outputAmount 999892863, i.e. totalRelayFee 107137 (relayerCapitalFee 100000 + relayerGasFee 7137), lpFee 0 — 1.07 bps, fill estimate 2 seconds; at 100 USDC outputAmount 99982866 (1.71 bps).
Methodology
How this category is reviewed
Reviewed on measured all-in cost for one identical transfer, the trust model funds actually depend on, whether published fees reconcile with observed ones, and chains verified live.
The order on this page is the published ranking for this category. Every criterion, weight and source behind it is on the methodology page.
Frequently asked
Questions people ask before choosing cross-chain swaps
What is the safest way to cross-chain swap route crypto across chains?
Safety here is mostly about what you are trusting while your assets are in transit, and the routes differ sharply. Some rely on an external validator set that can collude, some on the destination chain verifying the source directly, some on liquidity providers taking the other side. This page scores the trust model alongside the exploit record, because this is the part of crypto with the most money stolen and the record is a matter of history rather than opinion. Then check the measured all-in cost against the quoted price — the gap between them is where the real charge usually hides.
Do I need a cross-chain swap route or just an exchange?
If you already hold an asset on one chain and want it on another, a swap route does it directly and keeps you in self-custody throughout. An exchange can achieve the same thing by depositing on one chain and withdrawing on another, which is often cheaper and sometimes safer, at the cost of handing over custody and passing KYC. The exchange route also fails you where it does not list the chain or has withdrawals paused. Compare both on the measured all-in cost rather than the headline, since the swap's charge is usually in the price rather than in a fee line.
What matters most when choosing a crypto cross-chain swap route?
Measured all-in cost and the trust model usually matter most. Fee, bridge cost, the DEX leg, slippage and destination gas are five separate charges, and a headline rate typically names one of them.
Not financial advice · For informational purposes only · Always do your own research
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