# PayIns - [Overview](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/overview.md) - [Rocketfuel payment solution workflow](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-payment-solution-workflow.md) - [Encryption Algorithm](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/encryption-algorithm.md) - [Public Key Based](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/encryption-algorithm/public-key-based.md) - [Secret Key Based](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/encryption-algorithm/secret-key-based.md) - [Authentication](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/authentication.md) - [Authenticate a merchant](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/authentication/authenticate-a-merchant.md) - [Authentication Without Email / Password](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/authentication/authentication-without-email-password.md) - [RocketFuel UI Integration](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration.md) - [Generate Invoice Link](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/generate-invoice-link.md) - [Payment Processing](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/payment-processing.md) - [RKFL Payment Page](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/payment-processing/rkfl-payment-page.md) - [RKFL Payment Widget](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/payment-processing/rkfl-payment-widget.md) - [Transaction Lookup](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/transaction-lookup.md) - [Lookup using Auth](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/transaction-lookup/lookup-using-auth.md) - [Lookup using Public Key](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/transaction-lookup/lookup-using-public-key.md) - [Webhooks](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/webhooks.md) - [Handling Partial Payments](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/handling-partial-payments.md) - [Transaction Statuses](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/rocketfuel-ui-integration/transaction-statuses.md) - [Custom UI Integration](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration.md) - [Cryptocurrencies listing](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration/cryptocurrencies-listing.md) - [Generate QR Code](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration/generate-qr-code.md) - [QR Payment Status](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration/qr-payment-status.md) - [Transactions Lookup](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration/transactions-lookup.md) - [Webhooks](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration/webhooks.md) - [Handle Partial Payment](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/custom-ui-integration/handle-partial-payment.md) - [Utility APIs](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis.md) - [Subscriptions/Recurring Payments](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/subscriptions-recurring-payments.md) - [Store info](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/store-info.md) - [Shopper](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/shopper.md) - [Shopper manual signup](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/shopper/shopper-manual-signup.md) - [Verify shopper's email id](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/shopper/verify-shoppers-email-id.md) - [Shopper manual login](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/shopper/shopper-manual-login.md) - [Shopper info](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/shopper/shopper-info.md) - [Shopper wallet balance](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/shopper/shopper-wallet-balance.md) - [Exchange Payment](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/exchange-payment.md) - [Exchanges listing](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/exchange-payment/exchanges-listing.md) - [Pre-payment validation check](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/exchange-payment/pre-payment-validation-check.md) - [Payable amount](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/exchange-payment/payable-amount.md) - [Trigger Exchange payment](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/exchange-payment/trigger-exchange-payment.md) - [Bank Payment](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/bank-payment.md) - [Bank listing](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/bank-payment/bank-listing.md) - [Bank payment](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/bank-payment/bank-payment.md) - [Transaction listing](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/transaction-listing.md) - [Order info](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/utility-apis/order-info.md) - [Wallet payment](https://docs.rocketfuel.inc/developer-guides/api-reference/payins/wallet-payment.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.rocketfuel.inc/developer-guides/api-reference/payins.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.