> For the complete documentation index, see [llms.txt](https://whitepaper.crosstheages.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.crosstheages.com/guide/en/cta-portal/cards-trading.md).

# Cards Trading

- [To Buy a Card](https://whitepaper.crosstheages.com/guide/en/cta-portal/cards-trading/to-buy-a-card.md)
- [To Sell a Card](https://whitepaper.crosstheages.com/guide/en/cta-portal/cards-trading/to-sell-a-card.md)
- [To Transfer a Card](https://whitepaper.crosstheages.com/guide/en/cta-portal/cards-trading/to-transfer-a-card.md)