# Authorization Integration

- [Contact Introduction and Integration](/tech/maiagent-tech-en/authorization-integration/contacts.md)
- [Differences between Role and Contact](/tech/maiagent-tech-en/authorization-integration/role-vs-contact.md)
- [Knowledge Management Permissions (Query Metadata) Overview](/tech/maiagent-tech-en/authorization-integration/zhi-shi-guan-li-quan-xian-query-metadata-cha-xun-yuan-zi-liao-zong-lan.md)
- [Getting Started—Using "Query Builder"](/tech/maiagent-tech-en/authorization-integration/zhi-shi-guan-li-quan-xian-query-metadata-cha-xun-yuan-zi-liao-zong-lan/graphical-interface.md): MaiAgent provides a graphical way to construct Query Metadata
- [Getting Started—Using JSON Format](/tech/maiagent-tech-en/authorization-integration/zhi-shi-guan-li-quan-xian-query-metadata-cha-xun-yuan-zi-liao-zong-lan/json-interfaces.md): If you want to write more complex filtering conditions, you can use JSON format to directly specify by level IDs (such as knowledge base, single document, etc.)