> For the complete documentation index, see [llms.txt](https://yapp-ai.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yapp-ai.gitbook.io/docs/core-utilities.md).

# Core Utilities

- [Yapr](https://yapp-ai.gitbook.io/docs/core-utilities/yapr.md)
- [Campaign Creators](https://yapp-ai.gitbook.io/docs/core-utilities/yapr/campaign-creators.md)
- [Campaign Participants](https://yapp-ai.gitbook.io/docs/core-utilities/yapr/campaign-participants.md)