# System Schema APIs

- [Returns Schema by Type](/guardian/standard-registry/schemas/system-schema-apis/returns-schema-by-type.md)
- [Creates New System Schema](/guardian/standard-registry/schemas/system-schema-apis/creates-new-system-schema.md)
- [Returns Schema by Username](/guardian/standard-registry/schemas/system-schema-apis/returns-schema-by-username.md)
- [Updates the Schema](/guardian/standard-registry/schemas/system-schema-apis/updates-the-schema.md)
- [Delete System Schema](/guardian/standard-registry/schemas/system-schema-apis/delete-system-schema.md)
- [Publishes the Schema](/guardian/standard-registry/schemas/system-schema-apis/publishes-the-schema.md)
- [Schema Type](/guardian/standard-registry/schemas/system-schema-apis/schema-type.md)
- [Returns Map API Key](/guardian/standard-registry/schemas/system-schema-apis/returns-map-api-key.md)