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FAQ

How is a conversion fee applied?

When you convert a balance from one asset to another, the cost of that conversion is reflected in the route and the quoted rate you see before you confirm — it is not a separate line item bolted on afterward. Conversion on halfin is asset-to-asset only: you move a balance from one supported crypto asset into another. There is no fiat off-ramp and no cash-out to a bank. As for the specific figure, we do not quote a conversion percentage on this site; what you act on is the quote in front of you at the moment you convert.

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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.How do fees work?Two separate things: the blockchain's network fee (set by the chain, varies by transaction) and halfin's commercial pricing, which is not published yet.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 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 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 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.