> For the complete documentation index, see [llms.txt](https://docs-card.musepay.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-card.musepay.io/integration.md).

# Integration

- [Authentication](https://docs-card.musepay.io/integration/authentication.md)
- [Acquiring API](https://docs-card.musepay.io/integration/acquiring-api.md): Choose and integrate the MusePay crypto acquiring mode that fits your payment flow.
- [Checkout Payment Amount Handling](https://docs-card.musepay.io/integration/acquiring-api/checkout-payment-amount-handling.md): Handle exact, underpaid, and overpaid Checkout Mode payments.
- [Card API](https://docs-card.musepay.io/integration/card-api.md): Integrate cardholder onboarding, card issuance, funding, management, and transaction verification.
- [How to Issue a Card](https://docs-card.musepay.io/integration/card-api/how-to-issue-a-card.md)
- [Card Transactions Verification](https://docs-card.musepay.io/integration/card-api/card-transactions-verification.md)
- [Fiat Payout API](https://docs-card.musepay.io/integration/fiat-payout-api.md): Integrate fiat payouts from a USDT balance to third-party bank accounts.
- [WebHook](https://docs-card.musepay.io/integration/webhook.md)
- [Order](https://docs-card.musepay.io/integration/webhook/order.md)
- [Card](https://docs-card.musepay.io/integration/webhook/card.md)