---
title: Integrating a custom search or knowledge article viewer with knowledge blocks
description: If you are using a custom search or knowledge article viewer with your application, you can integrate that custom search or viewer with the appropriate knowledge or knowledge blocks API.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/servicenow-platform/knowledge-management/integrating-with-custom-search-or-knowledge-article-viewer.html
release: australia
product: Knowledge Management
classification: knowledge-management
topic_type: concept
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Using knowledge blocks, Using Knowledge Management, Knowledge Management, Manage content capabilities, Extend ServiceNow AI Platform capabilities]
---

# Integrating a custom search or knowledge article viewer with knowledge blocks

If you are using a custom search or knowledge article viewer with your application, you can integrate that custom search or viewer with the appropriate knowledge or knowledge blocks API.

**Note:** Integration is only necessary if you are using a custom search or knowledge article viewer.

-   **[KBPortalServiceImpl - Global](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/knowledge-management/KBPortalServiceImplAPI.md)**  
The `KBPortalServiceImpl` API is included with Knowledge Management V3 \[com.snc.knowledge3\] as a script include. It provides methods to use with knowledge, such as integration with a custom search.
-   **[KBBlock - Global](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/knowledge-management/KBBlockAPI.md)**  
The `KBBlock` API is included with knowledge blocks \[com.snc.knowledge\_blocks\] as a script include. It provides methods to use with the knowledge blocks feature, such as integration with a custom knowledge article viewer.

**Parent Topic:**[Using knowledge blocks](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/servicenow-platform/knowledge-management/using-knowlege-blocks.md)