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FAQ

Does a refund cost a fee?

A refund moves funds back to the customer as a real transaction on the blockchain, so it carries the chain's network fee exactly like any other transfer. That fee is set by the network and varies with how busy it is — it is not a halfin charge, and halfin neither sets nor collects it. As for halfin's own commercial pricing, that is a separate layer that is not published on this site, so the only refund cost we can quantify here is the on-chain network fee that any send incurs.

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Keep reading across the cluster.

halfin FAQ — how crypto payments work end to endHow halfin invoicing, checkout, deposit addresses, payouts, conversion, and webhooks work. Browse every question or read the cross-cutting answers.Who pays the blockchain network fee?The sending wallet pays the network fee to the chain. On incoming payments the customer pays; on payouts it is part of moving the funds. Never a halfin charge.Are there chargebacks with crypto payments?No. A confirmed on-chain payment is final, so there are no card-style forced reversals. A refund is a deliberate action you choose to issue.Are API keys scoped?Yes. A halfin API key carries only the permissions you grant it, scoped to the operations it needs — a read or invoice key cannot release payouts.Are API requests rate limited?Yes. Public auth endpoints are rate limited per IP and authenticated API-key requests are limited too. Design clients to back off and retry idempotently.Are crypto payments final?Yes — a confirmed on-chain transfer is irreversible and there are no chargebacks. Finality is a property of the chain, which is what makes reconciliation clean.Are there monthly or setup fees?halfin's commercial pricing is not published on this site yet, so there is no monthly or setup figure to quote here. Building in the sandbox is free.Assets and networks questionsFrequently asked questions drawn from the halfin assets and networks pages. Each one links to a standalone answer.Can a customer pay an invoice late?A deposit that lands after a halfin invoice expires fires invoice.late_deposit — the funds are credited and matched to the invoice, and you decide how to treat the order.Can a customer reuse the same deposit address?Yes. A halfin static deposit address is persistent, so repeat deposits to the same address credit the same customer — no new invoice or address per top-up.Can I auto-convert incoming payments to a stablecoin?Yes. halfin balance conversion can run automatically toward a target asset such as a stablecoin, so incoming payments settle in one currency on credit.Can I bill in fiat and get paid in crypto?Yes. Set amount_fiat and fiat_currency on a halfin invoice; the customer pays the equivalent in any supported asset at the locked rate you bill against.