> For the complete documentation index, see [llms.txt](https://rest-api.symphony.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rest-api.symphony.com/main/apps-on-behalf-of-obo.md).

# Apps On Behalf Of (OBO)

- [API Endpoints for Apps](https://rest-api.symphony.com/main/apps-on-behalf-of-obo/obo-enabled-endpoints.md)
- [App Authentication](https://rest-api.symphony.com/main/apps-on-behalf-of-obo/obo-rsa-app-authentication.md): Authenticates an OBO app using the application saved RSA public key.
- [User Authentication by User ID](https://rest-api.symphony.com/main/apps-on-behalf-of-obo/obo-rsa-user-authentication-by-user-id.md): Enables an RSA application to authenticate on behalf of a particular user.
- [User Authentication by User Name](https://rest-api.symphony.com/main/apps-on-behalf-of-obo/obo-rsa-userauthentication-by-username.md): Enables an RSA application to authenticate on behalf of a particular user.