> For the complete documentation index, see [llms.txt](https://docs.merchant.alb.ua/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.merchant.alb.ua/en/payment-widgets-for-cms/opencart.md).

# OpenCart

- [Installation instructions](https://docs.merchant.alb.ua/en/payment-widgets-for-cms/opencart/installation-instructions.md)
- [Functionality and description of the payment module](https://docs.merchant.alb.ua/en/payment-widgets-for-cms/opencart/functionality-and-description-of-the-payment-module.md): Setting up the payment module before starting work.
- [Database structure](https://docs.merchant.alb.ua/en/payment-widgets-for-cms/opencart/database-structure.md)