# Miscellaneous

- [Keys and authentication](/miscellaneous/keys-and-authentication.md)
- [Environments](/miscellaneous/environments.md)
- [Invoice currencies](/miscellaneous/invoice-currencies.md): This page contains definitions of the concepts important for integration with XGateway.
- [Deposit data confirmation](/miscellaneous/deposit-data-confirmation.md)
- [iFrame setup](/miscellaneous/iframe-setup.md)
- [Callbacks](/miscellaneous/how-to-process-the-callback.md): Our system provides several types of callbacks to keep merchants informed about critical events.
- [Transaction callback for Deposit and Withdraw](/miscellaneous/how-to-process-the-callback/transaction-callback-for-deposit-and-withdraw.md)
- [Bank Account callback](/miscellaneous/how-to-process-the-callback/bank-account-callback.md)
- [KYC callback](/miscellaneous/how-to-process-the-callback/kyc-callback.md)
- [Withdrawal initiation with API](/miscellaneous/withdrawal-initiation-with-api.md): The guide how to initiate a withdrawal
- [Disputes resolution](/miscellaneous/disputes-resolution.md)
- [Checkout Localisation](/miscellaneous/checkout-localisation.md)
- [Exchange rates](/miscellaneous/exchange-rates.md): The system provides an API, which serves exchange rates.
- [Deposit and Withdrawal simulation](/miscellaneous/deposit-and-withdrawal-simulation.md)
- [SEPA Secure KYC API](/miscellaneous/sepa-secure-kyc-api.md)
- [SEPA Secure service API](/miscellaneous/sepa-secure-service-api.md)
- [Destination Bank Account management API](/miscellaneous/sepa-secure-service-api/destination-bank-account-management-api.md)
- [Customer account creation](/miscellaneous/sepa-secure-service-api/customer-account-creation.md)
- [Upload KYC documents](/miscellaneous/sepa-secure-service-api/upload-kyc-documents.md)
- [Initiate KYC verification](/miscellaneous/sepa-secure-service-api/initiate-kyc-verification.md)
- [Check KYC status](/miscellaneous/sepa-secure-service-api/check-kyc-status.md)
- [Patching KYC data](/miscellaneous/sepa-secure-service-api/patching-kyc-data.md)
- [Generating Terms and Conditions hashes](/miscellaneous/sepa-secure-service-api/generating-terms-and-conditions-hashes.md)
- [Testing SEPA Secure deposits](/miscellaneous/sepa-secure-service-api/testing-sepa-secure-deposits.md)
- [Get customer bank details](/miscellaneous/sepa-secure-service-api/get-customer-bank-details.md)
- [Generate KYC checkout link](/miscellaneous/sepa-secure-service-api/generate-kyc-checkout-link.md)
- [Reconciliation report API](/miscellaneous/reconciliation-report-api.md)
- [Account balance API](/miscellaneous/account-balance-api.md)
- [Crypto transaction fees API](/miscellaneous/crypto-transaction-fees-api.md)
- [Deposits and Withdrawals limits](/miscellaneous/operational-limits.md): Operational limits endpoint is a convenient way to get up-to-date information on supported currencies and their respective deposits and withdrawals limits during the integration.
- [Invoice retrieval API](/miscellaneous/invoice-retrieval-api.md)
- [SumSub KYC token sharing](/miscellaneous/sumsub-kyc-token-sharing.md): SumSub flow via exporting the KYC applicant.