# Checkout

- [Cart Service](https://developer.emporix.io/api-references/api-guides/checkout/cart.md)
- [Cart Tutorial](https://developer.emporix.io/api-references/api-guides/checkout/cart/cart.md)
- [API Reference](https://developer.emporix.io/api-references/api-guides/checkout/cart/api-reference.md)
- [Carts](https://developer.emporix.io/api-references/api-guides/checkout/cart/api-reference/carts.md)
- [Cart items](https://developer.emporix.io/api-references/api-guides/checkout/cart/api-reference/cart-items.md)
- [Discounts](https://developer.emporix.io/api-references/api-guides/checkout/cart/api-reference/discounts.md)
- [Models](https://developer.emporix.io/api-references/api-guides/checkout/cart/api-reference/models.md)
- [Checkout Service](https://developer.emporix.io/api-references/api-guides/checkout/checkout.md)
- [Checkout Tutorial](https://developer.emporix.io/api-references/api-guides/checkout/checkout/checkout.md)
- [API Reference](https://developer.emporix.io/api-references/api-guides/checkout/checkout/api-reference.md)
- [Checkouts](https://developer.emporix.io/api-references/api-guides/checkout/checkout/api-reference/checkouts.md)
- [Models](https://developer.emporix.io/api-references/api-guides/checkout/checkout/api-reference/models.md)
- [Fee Service](https://developer.emporix.io/api-references/api-guides/checkout/fee.md)
- [Fee Tutorial](https://developer.emporix.io/api-references/api-guides/checkout/fee/fee.md)
- [API Reference](https://developer.emporix.io/api-references/api-guides/checkout/fee/api-reference.md)
- [Fee management](https://developer.emporix.io/api-references/api-guides/checkout/fee/api-reference/fee-management.md)
- [Item fee management](https://developer.emporix.io/api-references/api-guides/checkout/fee/api-reference/item-fee-management.md)
- [Product fees management](https://developer.emporix.io/api-references/api-guides/checkout/fee/api-reference/product-fees-management.md)
- [Item fee search](https://developer.emporix.io/api-references/api-guides/checkout/fee/api-reference/item-fee-search.md)
- [Models](https://developer.emporix.io/api-references/api-guides/checkout/fee/api-reference/models.md)
- [Payment-gateway Service](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway.md)
- [Payment-gateway Tutorial](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/payment-gateway.md)
- [API Reference](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference.md)
- [Payment](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference/payment.md)
- [Payment mode](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference/payment-mode.md)
- [Payment   frontend](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference/payment-frontend.md)
- [Payment mode   frontend](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference/payment-mode-frontend.md)
- [Transaction](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference/transaction.md)
- [Models](https://developer.emporix.io/api-references/api-guides/checkout/payment-gateway/api-reference/models.md)
- [Shopping List](https://developer.emporix.io/api-references/api-guides/checkout/shopping-list.md)
- [Shopping List Tutorial](https://developer.emporix.io/api-references/api-guides/checkout/shopping-list/shopping-list-tutorial.md)
- [API Reference](https://developer.emporix.io/api-references/api-guides/checkout/shopping-list/api-reference.md)
- [Shopping Lists](https://developer.emporix.io/api-references/api-guides/checkout/shopping-list/api-reference/shopping-lists.md)
- [Models](https://developer.emporix.io/api-references/api-guides/checkout/shopping-list/api-reference/models.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://developer.emporix.io/api-references/api-guides/checkout.md?ask=<question>
```

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.