Move USDC in and out of Arc, and pay anyone by @name.
Confluence is one app to bridge, swap and pay with USDC, built around Arc. Native USDC moves through Circle’s CCTP, other chains and tokens through Relay, and you sign every step in your own wallet.
Confluence never holds your funds or your keys. Every transfer goes from your wallet straight to Circle or Relay.
See Confluence’s volume and users on DefiLlamaEverything USDC needs around Arc, in one app
Bridge it, swap it, or send it to a name. Each one runs on infrastructure built by Circle or Relay, and you sign every step.
Bridge
Open BridgeMove USDC into and out of Arc, and between other supported chains, through Circle's Cross-Chain Transfer Protocol.
- Burned on one chain, minted fresh on the other: always native USDC
- Fast or Standard, your choice on every transfer
- Circle's Forwarding Service delivers the mint for you
Swap
Open SwapSwap tokens on the same chain through Circle's App Kit: USDC, EURC, USDT and each chain's native token where available, plus cirBTC on Arc and Ethereum.
- Minimum received shown before you sign
- Slippage of 0.5%, 1% or 3%, with 1% by default
Pay by @name
Open PayClaim a Confluence ID and get paid without sharing a long address. Send to any ID from Arc or from another chain, and it always lands on Arc.
- Free from Arc to an ID: one transfer, one confirmation
- Pay links and QR codes to get paid
- Warnings for look-alike IDs and first payments
Relay routes
Open BridgeReach the wider set of chains and tokens that Relay supports, from the same Bridge and Swap pages, with one switch.
- Every quote checked against Relay's published contracts
- Refunds always go back to your own wallet
Four steps, and you sign every one
Confluence prepares each step, checks it and shows you exactly what will happen. The money only moves when your wallet says so. See what happens behind the scenes.
- 1
Connect your wallet
A browser wallet, or a mobile wallet through WalletConnect. No account is needed to bridge or swap.
- 2
Pick a route
Choose the chains, tokens and amount. The quote shows every fee and the total that leaves your wallet.
- 3
Sign each step
You approve and confirm every transaction in your own wallet. Confluence cannot move funds without you.
- 4
Watch it land
Your transaction page and Profile history follow each transfer until it arrives, even after you close the page.
Why Confluence is built this way
Moving money across chains should be boring: the same amount out, the same amount in, and nothing to wonder about in between. These are the choices that keep it that way.
Real USDC, never a wrapped copy
CCTP burns USDC on the chain you send from, and Circle mints the same amount fresh on the chain you send to. There is no pool to drain and no IOU token to redeem later.
Built around Arc
Arc is Circle's own blockchain, where even gas is paid in USDC. Confluence is designed for moving USDC in and out of it, and every payment by @name lands there.
One app for three jobs
Bridge, swap and pay from the same place, with one history in your Profile, and an address book that follows you across devices once you sign in.
The price before the signature
Our fee, Circle's or Relay's costs and the network's gas are all on the quote, with the total that leaves your wallet. Nothing is charged until you confirm.
Built to finish what it starts
Confluence tracks every transfer in the background. If a delivery stalls you can complete the mint yourself, and a burned transfer can always be finished with Circle's proof, even if Confluence is offline.
Live, not hard-coded
Chains and tokens come straight from Circle and Relay, so the app never offers a route that has stopped working.
Security and trust, from the first click
Confluence never holds your funds or your keys. Everything else on this list builds on that one choice.
You sign everything
Every approval, burn, swap and Relay transfer is a transaction you review in your own wallet. Confluence cannot move, pause or reverse your funds.
No contracts of our own
Your funds only ever go to Circle's and Relay's contracts. Confluence has no custom smart contract sitting between you and them.
Relay quotes verified first
Each transaction and approval in a Relay quote is checked against Relay's published contracts and your request. A quote that fails is never shown.
Warnings before you send
Look-alike addresses and IDs, contract recipients and low gas are flagged before your wallet is asked for anything.
Refunds come back to you
If a Relay route cannot complete, its refund is always addressed to your own wallet on the chain you paid from.
Signing in moves nothing
Sign-In with Ethereum is a free message, not a transaction. Only a one-way fingerprint of your session is stored.
Protect yourself
Confluence will never ask for your seed phrase or private key, and never messages you first. Before you connect, check that the address is app.confluencebuild.xyz.
Read how we keep you safe, our Privacy policy and Terms of Use. Found a security issue? Email support@confluencebuild.xyz.
Built on Arc, powered by Circle
Confluence puts a clear, careful interface on infrastructure built by Circle and Relay, and follows their official documentation for every step.
- Arc
- Circle's blockchain and Confluence's home chain. Gas is paid in USDC.
- Circle CCTP
- Burns USDC on one chain and mints native USDC on another.
- Circle App Kit
- Runs bridge transfers and same-chain swaps.
- Circle Forwarding Service
- Delivers the mint on the destination chain for you.
- Relay
- Routes to the wider set of chains and tokens it supports.
- Sign-In with Ethereum
- Wallet sign-in for your Profile and Confluence ID, with no password.
Where your USDC can go
- Arc
- Arbitrum
- Avalanche
- Base
- Codex Mainnet
- Edge
- Ethereum
- HyperEVM
- Ink
- Linea
- Monad
- Optimism
- Plume
- Polygon
- Sei
- Sonic
- Unichain
- World Chain
- XDC
The chains the Bridge offers today, read live from the app. Relay routes reach more chains and tokens on top of these.
Questions, answered
More in the full FAQ and the docs.
Does Confluence hold my funds?
No. You sign every transaction in your own wallet, and funds move directly between your wallet and Circle's or Relay's contracts. We never have your keys.
Is the USDC I receive wrapped?
Not with the CCTP bridge. Circle burns USDC on one chain and mints native USDC on the other, so you always receive the same USDC Circle issues on that chain.
Do I need an account?
No. You can bridge, swap, pay an ID and use Relay routes with just a wallet. Signing in with your wallet unlocks your Profile, your Confluence ID and the rest of the Pay page.
How much does it cost?
Paying a Confluence ID from Arc is free. A CCTP bridge costs 0.30 USDC up to 1,000 USDC, and 0.30 USDC plus 0.01% of the part above 1,000 for larger bridges. Every fee, including Circle's and the network's, is on the quote before you sign.
Can I cancel a transfer?
Before you confirm in your wallet, yes: just don't sign. Once USDC is burned on the source chain, a CCTP transfer can't be cancelled; it always completes to the recipient you chose.
What happens if Confluence goes offline?
Your funds are on the blockchain, not with us. A burned CCTP transfer can still be completed with Circle's attestation, and Relay routes are delivered by Relay's own network.
Can I change my Confluence ID?
No. IDs are permanent once claimed and can't be changed or transferred, so choose carefully.
Bring your USDC to Arc.
Connect a wallet, see every fee up front, and sign when you are ready.