ONEBLOCK
ARC #ETH #SETTLEMENT FEE 3%
OneBlock · cross-chain OTC · EthereumArc · settled in one blockOneBlock · cross-chain OTC · EthereumArc · settled in one block
EthereumArc · peer-to-peer OTC desk

Cross-chain USDC,
settled in one block.

Buy native Arc USDC directly from sellers, pay on Ethereum, and the keeper settles both sides on-chain — with a guaranteed refund if it ever stalls.

Arc block height
#
Volume
$0
Liquidity
$0 USDC

New here? , mint free test USDC in one tap, and try a trade — testnet, no real funds.

Order book

0 live · lowest premium first
AvailablePremiumSeller
01

Seller posts liquidity

A seller locks Arc USDC in escrow and names a premium.

02

Buyer pays on Ethereum

The payment is locked in an escrow contract — never a wallet.

03

Keeper settles in one block

The asset lands on Arc and the seller's payment is released atomically.

NON-CUSTODIAL

Funds stay in escrow

Your payment sits in an on-chain escrow contract, never a company wallet.

REFUNDABLE

Timeout-protected

If the asset isn't delivered before the deadline, reclaim your full payment on-chain.

ATOMIC

Both sides or neither

The keeper releases the seller only after delivering the asset to you on Arc.