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Quickstart

Get from zero to your first curve trade in a few minutes.

1. Open the app​

Visit pairband.com (or your local preview). Connect a wallet that supports Arc Testnet (5042002).

Add Arc Testnet to your wallet if needed:

FieldValue
Network nameArc Testnet
RPC URLhttps://rpc.testnet.arc.io
Chain ID5042002
CurrencyUSDC
Explorertestnet.arcscan.app

2. Get testnet USDC​

Fund the protocol deployer or your wallet from the Circle faucet. Gas and quotes on Arc are USDC — there is no separate native gas token.

Official USDC on Arc:

0x3600000000000000000000000000000000000000

3. Create or buy on a curve​

  1. Create — name, symbol, and optional metadata; the launchpad deploys PairbandToken and opens the bonding curve.
  2. Buy — pay USDC; the curve uses virtual reserves (80 USDC × 1B tokens) until graduation.
  3. Sell — return tokens for USDC while status == curve.

Fees on the curve (paid in USDC):

  • 1.0% protocol
  • 0.5% creator

4. Graduate and trade post-curve​

When $80 USDC is raised on the curve, the next qualifying buy:

  1. Transfers remaining tokens + USDC into a new PairbandPair
  2. Mints LP and sends it to 0x000000000000000000000000000000000000dEaD
  3. Opens PairbandBook for on-chain limit orders

After graduation, the same buy/sell entry points route through the book + locked AMM (0.30% swap fee).

5. Pay from another chain (CCTP)​

You do not need Arc USDC in your wallet on day one:

  1. Choose a supported source chain (Ethereum, Base, Unichain, Arbitrum, Optimism, Solana, etc.)
  2. Approve and burn USDC via Circle CCTP v2
  3. Arc mints USDC into PairbandSettler, which routes into the launchpad or book

See CCTP for domain IDs, messenger address, and settlement flow.

Preview vs on-chain​

ModeBehavior
Preview / local engineMirrors contract math (curve, graduation, Uniswap getAmountOut, LP burn, fees). Numbers are illustrative until factory is live.
On-chain (testnet)Requires funded deployer and published launchpad + ammFactory in deployments.json. Connect wallet to broadcast.
Contract addresses

On-chain addresses are filled in after DeployLaunch.s.sol is broadcast. See Contracts — placeholders are null until deployment.