> For the complete documentation index, see [llms.txt](https://docs.abbey.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.abbey.io/reference/linking-application-identities-into-abbey.md).

# Linking Application Identities into Abbey

- [Why do I need to link application identities?](https://docs.abbey.io/reference/linking-application-identities-into-abbey/why-do-i-need-to-link-application-identities.md)
- [How do I Link Application Identities?](https://docs.abbey.io/reference/linking-application-identities-into-abbey/how-do-i-link-application-identities.md)
- [Supported Application Identity Types and Schemas](https://docs.abbey.io/reference/linking-application-identities-into-abbey/supported-application-identity-types-and-schemas.md)
- [Application Data Object](https://docs.abbey.io/reference/linking-application-identities-into-abbey/application-data-object.md)