Help & FAQ

What is Justlink?

Create a fixed-amount USDC payment link on Arc, share it, and get paid in one transaction. Optional splits send portions to multiple addresses in the same settle.

How do I create a link?

1. Connect a wallet on Arc
2. Set title, amount, optional splits / expiry / webhook
3. Confirm the create transaction, then share the pay link

How does the payer pay?

Open the link, connect on Arc with enough USDC (payment + gas), and confirm. When Arc USDC supports EIP-2612 permit, payment can be a single transaction; otherwise approve then pay.

Are payments reversible?

No. Confirmed on-chain transfers cannot be undone by Justlink. There are no chargebacks.

Do you hold my funds?

No. The PaymentRouter pulls USDC from the payer and immediately transfers to the recipients defined in the session.

Webhooks

Optional HTTPS webhook URLs receive a payment.paid JSON event after the payment is verified on-chain. Signatures use X-Arc-Pay-Signature when WEBHOOK_SIGNING_SECRET is configured.

Still stuck?

See Support.