Setup
Wallet & network
STARC runs on Arc Testnet. Connect a wallet, add the network through this site, and fund native USDC from Circle’s faucet.
Add Arc Testnet
Connect
Use Connect in the header. Approve the connection in your wallet.
Switch or re-add Arc
If you’re on the wrong chain, switch when prompted. If transactions fail with rate-limit errors, use Re-add Arc Testnet in the wallet menu so MetaMask points at this site’s /api/rpc proxy instead of the public Arc endpoint.
Fund USDC
Get test native USDC from the Circle faucet. You’ll need it for gas and for bootstrap buys.
Network details
| Field | Value |
|---|---|
| Network | Arc Testnet |
| Chain ID | 5042002 |
| Currency | USDC (native gas) |
| Preferred RPC | https://<this-site>/api/rpc |
| ERC-20 USDC | 0x3600000000000000000000000000000000000000 |
Common issues
RPC rate limited
Public Arc RPCs throttle aggressively. Re-add Arc from STARC so the wallet uses the site proxy, wait a few seconds, and retry.
Wrong USDC type
Curve buys spend native USDC. Pool swaps need ERC-20 USDC approved. The trade panel will prompt for approval when needed.
Stuck on wrong network
Switch to Arc Testnet (chain ID 5042002) before creating or trading.