> For the complete documentation index, see [llms.txt](https://docs.guardianservice.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis.md).

# System Schemas APIs

- [Creates New System Schema](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/creates-new-system-schema.md)
- [Returns Schema by Type](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/returns-schema-by-type.md)
- [Returns Schema by Username](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/returns-schema-by-username.md)
- [Updates the Schema](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/updates-the-schema.md)
- [Delete System Schema](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/delete-system-schema.md)
- [Publishes the Schema](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/publishes-the-schema.md)
- [Schema Type](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/schema-type.md)
- [Returns Map API Key](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/system-schemas-apis/returns-map-api-key.md)