Wolf Pay

USDC on Arbitrum

Accept USDC on Arbitrum (ERC-20)

Accept USD Coin (USDC) on Arbitrum: hosted checkout, 40 confirmations (under a minute), signed webhooks and payouts. 1% per payment, $3 minimum.

Updated · Wolf Pay team

Wolf Pay is open in test mode: you can sign up, integrate and run test payments today. Live payments open once our custody partner goes live.

Key points

  • Wolf Pay accepts USDC on Arbitrum (ERC-20) at contract 0xaf88d065e77c8cC2239327C5EDb3A432268e5831.
  • Payments are marked paid after 40 confirmations, usually under a minute.
  • The customer's wallet pays the Arbitrum network fee. Wolf Pay charges 1% per payment, $3 minimum.
  • Customers pay from MetaMask, Rabby, Coinbase Wallet, and exchanges that support Arbitrum withdrawals.

USDC on Arbitrum at a glance

CoinUSD Coin (USDC), issued by Circle
NetworkArbitrum (ERC-20 token)
Token contract0xaf88d065e77c8cC2239327C5EDb3A432268e5831
Decimals6
Confirmations Wolf Pay waits for40 (under a minute)
Network feeUsually cents or less. The sender pays in ETH on Arbitrum.
Wolf Pay fee1% per payment, $3 minimum. No monthly fee

Why accept USDC on Arbitrum

Arbitrum One is one of the largest Ethereum layer-2 networks. Circle issues USDC on it natively, so customers active in DeFi on Arbitrum can pay without bridging back to Ethereum.

USDC is a dollar stablecoin issued by Circle, a US company that publishes regular reports on the reserves backing it. Businesses and institutions often prefer it for that transparency, and it is issued natively on many networks, so customers can usually send it from wherever they hold it.

Good fit for:

  • Customers already holding funds on Arbitrum
  • Low-cost USDC payments
  • Crypto-native audiences

How it works with Wolf Pay

  1. Create a payment in your dashboard, with a payment link, or from your server with the API, choosing USDC on Arbitrum.
  2. Your customer pays on a hosted checkout that shows the exact amount, the Arbitrum deposit address, a QR code and the network in large type, so they send the right coin on the right network.
  3. You get paid. Once the transfer has 40 confirmations (under a minute), the payment is marked paid, your webhook fires, and the amount (minus Wolf Pay's fee) is in your USDC balance, ready to pay out to your own wallet.
curl https://wolf-pay-five.vercel.app/api/v1/payments \
  -H "Authorization: Bearer $WOLF_PAY_SECRET_KEY" \
  -H "Content-Type: application/json" \
  -d '{"amount": "49.00", "currency": "USDC", "network": "arbitrum", "order_id": "1001"}'

The response includes a checkout_url to send the customer to. Full reference: API docs.

Common mistakes to avoid

  • Wolf Pay accepts native USDC on Arbitrum. The older bridged token (USDC.e) is a different token and isn't accepted.
  • The address looks like an Ethereum one; the network chosen in the wallet must be Arbitrum.
  • The amount has to be sent in full: if a customer's exchange deducts its withdrawal fee from the amount, the payment arrives short and is marked underpaid, with the difference shown.
  • Only send USDC to a USDC payment. Other tokens sent to the address aren't credited to the payment.

Other ways to get paid in USDC or on Arbitrum

Frequently asked questions

How long does a USDC payment on Arbitrum take to confirm?

Wolf Pay marks a USDC payment on Arbitrum as paid after 40 network confirmations, which usually takes under a minute from when the customer sends it.

What does it cost to accept USDC on Arbitrum?

Wolf Pay charges 1% per payment with a $3 minimum and no monthly fee. The customer's wallet pays the Arbitrum network fee. Usually cents or less. The sender pays in ETH on Arbitrum.

What is the USDC token contract on Arbitrum?

Wolf Pay accepts USDC on Arbitrum at the contract 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (6 decimals). Other tokens with similar names are not credited.

What if a customer sends USDC on the wrong network?

The checkout shows the network in large type and warns against sending on any other network, because a transfer on a different network does not arrive at this Arbitrum address. If it happens, contact Wolf Pay support with the transaction hash; recovery is not always possible.

Do I need my own Arbitrum wallet to accept USDC?

No. Payments are credited to your Wolf Pay balance. You can pay out to your own wallet whenever you like, by hand or on a daily or weekly schedule.