---
title: Attribute Keys
framework: quartz
role: collectionGroup
role_heading: API Collection
path: quartz/attribute-keys
---

# Attribute Keys

Attributes of a composition.

## Topics

### Constants

- [QCCompositionAttributeNameKey](quartz/qccompositionattributenamekey.md)
- [QCCompositionAttributeDescriptionKey](quartz/qccompositionattributedescriptionkey.md)
- [QCCompositionAttributeCopyrightKey](quartz/qccompositionattributecopyrightkey.md)
- [QCCompositionAttributeBuiltInKey](quartz/qccompositionattributebuiltinkey.md)
- [QCCompositionAttributeHasConsumersKey](quartz/qccompositionattributehasconsumerskey.md)
- [QCCompositionAttributeCategoryKey](quartz/qccompositionattributecategorykey.md)

## See Also

### Constants

- [Composition Categories](quartz/composition-categories.md)
- [Standard Protocol Input Keys](quartz/standard-protocol-input-keys.md)
- [Standard Protocol Output Keys](quartz/standard-protocol-output-keys.md)
- [Standard Protocols](quartz/standard-protocols.md)