Break your order.
Keep the better price.
Shardline splits every swap across the pools on Arc into shards, sends each one where it fills best, and settles the lot in a single transaction.
Three moves
From faucet to filled
in under a minute.
Get test funds
Grab testnet USDC from the Circle faucet for gas, then mint 10,000 tUSD from the Shardline faucet in one click.
Quote across every pool
Your order is priced against the live reserves of every venue for that pair — the exact integer maths the pools run on-chain.
Split, then settle once
Each slice goes wherever it fills best. The router lands every leg in one transaction, held to a single minimum.
Live on Arc
Every market, read from the pools.
Prices and depth come straight from on-chain reserves at the latest Arc block. Nothing is marked from an off-chain feed.
Why Shardline
A router that shows its work.
Every leg, fee and share is on screen before you sign. The chain enforces the rest.
USDC gas
Arc settles in dollars. Fees are paid in USDC, so the cost of a trade is a number you can read without converting.
Quote = fill
The app and the pool share one formula, integer for integer. What you are shown is what the chain pays out.
All or nothing
One floor covers the whole route. If the split cannot clear it, the transaction reverts and you keep your tokens.
Open API
Markets and quotes over plain HTTP. No key, no account, read-only — build a bot or a dashboard on top.
Need gas? Arc runs on USDC.
Fund your wallet from the Circle faucet, then come back and place your first split.