How to use Jumper to bridge and swap across chains

Jumper is a cross-chain swap and bridge app built on LI.FI. You pick a source token and chain, a destination token and chain, and Jumper queries dozens of bridges and DEX aggregators at once, then shows the routes that deliver the most for the least. You sign one or two transactions in your wallet and the route does the rest.

This guide covers how the routing works, what you actually pay, a step-by-step bridge, and what to do when a transfer doesn’t arrive.

What is Jumper, and how does it relate to LI.FI?

LI.FI is a routing API. It connects to bridges (Across, Stargate, Relay, Mayan, Circle CCTP, NEAR Intents and many others) and to DEX aggregators (1inch, OKX, KyberSwap, Jupiter on Solana and more). Jumper is the consumer front end the LI.FI team built on top of it.

That relationship is changing. In a press release on 26 September 2026, Jumper said it will be carved out as a standalone company, with LI.FI continuing as the infrastructure. The same release claims roughly $40 billion in lifetime volume and over 100,000 monthly users. For you as a user, the swap and bridge flow is unchanged.

One practical change: the app moved domains. jumper.exchange now redirects to jumper.xyz, and the help centre sits at support.jumper.xyz.

How does Jumper choose a route?

When you request a quote, LI.FI asks every compatible bridge and exchange what it would deliver for your exact amount, then combines them into complete paths. A route might be:

• Bridge only: USDC on Arbitrum to USDC on Base via Circle CCTP or Across.
• Swap, then bridge: ETH on Ethereum swapped to USDC via an aggregator, then bridged.
• Bridge, then swap: USDC bridged to Solana, then swapped to SOL via Jupiter on arrival.
• Intent-based fill: a solver (Across relayers, Relay, NEAR Intents and similar) fronts you the funds on the destination chain and gets repaid on the source chain later.

Jumper ranks the results and shows each route with the amount you will receive, estimated time and fees. The top route is usually the one that nets you the most after costs, but a slightly cheaper route that takes 20 minutes is often worse than one that lands in 30 seconds. Check both numbers.

As of September 2026, LI.FI’s public API lists 36 bridge integrations, 37 exchange integrations and close to 70 mainnet networks, including Ethereum and its major L2s, BNB Chain, Avalanche, Solana, Sui, Bitcoin, Hyperliquid and HyperEVM. Jumper’s interface may show a subset of those at any given time.

How much does Jumper cost?

There are three layers of cost, and Jumper shows all of them before you confirm:

Cost	Who gets it	Typical size
Source-chain gas	Network validators	Cents on L2s and Solana; a few dollars on Ethereum mainnet
Bridge or DEX fee	The underlying protocol (relayer fee, LP fee, swap fee)	Varies by route; often a few basis points for stablecoins on fast bridges
LI.FI fee line	LI.FI / Jumper	Small percentage, shown in the quote

Jumper has long marketed itself as not charging a platform fee on top. The quotes still carry a “LI.FI Fixed Fee” line. LI.FI’s fee documentation sets its standard API fee at 0.25%, but quotes tagged with Jumper’s integrator ID, pulled from LI.FI’s public API on 27 September 2026, showed a much smaller line: between 0.01% and 0.05% depending on the pair.

A worked example from one of those quotes: bridging 0.1 ETH (about $269) from Ethereum to Base through Across showed a LI.FI fee of about $0.05 and Across relayer fees of about $0.03. The bigger cost on that route is Ethereum mainnet gas, which moves with network conditions. The same trade starting from Arbitrum would cost cents.

Two costs don’t show up as fee lines but matter:

• Slippage on any swap leg. Stablecoin-to-stablecoin bridges have almost none; a bridge-then-swap into a thin token can lose more to slippage than to every fee combined.
• Destination gas. If you land on a chain where you hold no native token, you can’t move the funds. Some routes let you receive a little destination gas as part of the transfer; if not, bridge a small amount of the native token first.

How to bridge with Jumper, step by step

1. Open the app and check the address. Go to Jumper and confirm the browser shows jumper.xyz before connecting. Bookmark it; don’t reach it through ads or links in DMs.
2. Connect your wallet. EVM wallets (MetaMask, Rabby, Coinbase Wallet and others) cover EVM chains. For Solana, Sui or Bitcoin you also need a wallet for that chain, or you can paste a destination address.
3. Pick the “from” side. Select the source chain first, then the token. Picking the chain first stops you choosing a same-named token on the wrong network.
4. Pick the “to” side and amount. Choose destination chain and token, then type the amount. If you want funds to arrive at a different address (a Solana wallet when you connected MetaMask, or a hardware wallet), use the destination address option; Jumper’s help centre has a short article on it.
5. Compare routes. Look at the receive amount, the estimated time and the fee breakdown. If the top route is slow or uses a bridge you’d rather avoid, choose another one.
6. Approve and confirm. For ERC-20 tokens you first sign an approval, then the transfer. Where your wallet lets you edit the approval amount, set it to the amount you’re bridging rather than unlimited.
7. Wait for the destination. Keep the tab open until Jumper shows the transfer as complete, then check the balance in your wallet on the destination chain. If the token doesn’t appear, add it manually using the contract address from a block explorer.

How do I track a stuck Jumper transaction?

Cross-chain transfers have two halves: the source transaction and the destination delivery. A stuck transfer is almost always the second half.

1. Find the transaction. After you confirm, the swap overview includes a Transaction ID link that opens Jumper Scan. If you closed the tab, go to jumper.xyz/scan and search your wallet address. It lists every transfer your wallet made through Jumper, with the bridge used, gas paid, tokens sent and received, and explorer links.
2. Read the status. LI.FI’s status tracking docs define the states: pending (still in progress), done (completed, partial or refunded) and failed.
3. Check “partial” outcomes. If a bridge-then-swap route bridges successfully but the destination swap fails, for example because the price moved beyond your slippage, you may receive the bridged token (often USDC or ETH) instead of the token you asked for. The funds aren’t lost; swap them yourself on the destination chain.
4. Check refunds. Some bridges refund to the source chain if they can’t complete. Look at your source-chain wallet, not just the destination.
5. Escalate with the hash. If a transfer stays pending well past the estimated time, contact Jumper support via support.jumper.xyz or the official Discord and give them the source transaction hash. Nobody legitimate will DM you first or ask for your seed phrase.

Is Jumper safe?

The contracts have been audited by several firms, but the history is worth knowing. On 16 July 2024 a newly added LI.FI contract module was exploited and about $11.6 million was drained from 153 wallets on Ethereum and Arbitrum, according to LI.FI’s incident report. Only wallets that had granted unlimited token approvals to the LI.FI contract were affected; exact-amount approvals, LI.FI’s default, were not.

The lessons apply to any aggregator:

• Approve exact amounts. An unlimited approval turns a future contract bug into a risk for your whole balance of that token.
• Revoke old allowances. Use a tool like revoke.cash every few months and after any incident announcement.
• Remember you inherit bridge risk. An aggregator routes your money through someone else’s bridge. Jumper chooses on price and speed; if you have views on which bridges you trust, exclude the others in the route settings.
• Verify the domain. Phishing clones of popular DeFi apps are common. The legitimate app is jumper.xyz.
• Keep large balances on a hardware wallet. Our hardware wallet setup guide covers connecting one to DeFi apps.

What else does Jumper do?

Beyond bridging and swapping, the app includes Jumper Earn (yield vaults), Missions (tasks from partner protocols that pay rewards and XP), and the Jumper Pass loyalty programme, which awards XP for onchain activity and unlocks partner perks by level. The press release also says a perps aggregator is coming. XP and referral mechanics are covered in our Jumper referral and rewards guide.

Who should use Jumper, and who should skip it?

Good fit: anyone moving funds between chains who doesn’t want to check five bridge sites for the best rate; people bridging into less common chains where only one or two bridges have liquidity; anyone swapping and bridging in one step.

Consider something else: if you only ever bridge between two chains with one bridge you already trust, going direct removes a layer of contract risk. For large one-chain swaps where MEV protection matters more than routing, an intent-based DEX like CoW Swap is worth a look; see our CoW Swap guide. And for a head-to-head with a single-protocol intent bridge, read Jumper vs deBridge, or our deBridge guide if you’re bridging to Solana often.