> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/commerce-api-references/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference.md).

# Shopper APIs reference

- [Carts](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/carts.md): Learn more about the carts resource.
- [Offers](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/carts/offers.md): Understand how offers work.
- [Offer types](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/carts/offers/offer-types.md): Understand the available offer types.
- [POP offers](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/carts/offers/pop-offers.md)
- [Applied offers](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/carts/offers/applied-offers.md)
- [Eligible offers](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/carts/offers/eligible-offers.md)
- [Orders](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/orders.md): Learn more about the orders resource.
- [Returns](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/returns.md): Learn how returns are processed.
- [Links](https://docs.digitalriver.com/commerce-api-references/commerce-api-reference-guide/shopper-apis-reference/links.md): Understand how the Shoppers resource includes links.