> For the complete documentation index, see [llms.txt](https://docs.cookie3.com/cookie3-analytics/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cookie3.com/cookie3-analytics/api.md).

# API

- [Referral Systems](https://docs.cookie3.com/cookie3-analytics/api/referral-systems.md)
- [Setup referral tracking](https://docs.cookie3.com/cookie3-analytics/api/referral-systems/setup-referral-tracking.md)
- [Accessing leaderboard and user data](https://docs.cookie3.com/cookie3-analytics/api/referral-systems/accessing-leaderboard-and-user-data.md)
- [API Response schema](https://docs.cookie3.com/cookie3-analytics/api/referral-systems/api-response-schema.md)
- [Best practices](https://docs.cookie3.com/cookie3-analytics/api/referral-systems/best-practices.md)
- [FAQ](https://docs.cookie3.com/cookie3-analytics/api/referral-systems/faq.md)