---
sourceDocument: Zurich ServiceNow AI Platform Capabilities
sourceDocumentLink: https://www.servicenow.com/docs/r/zurich/servicenow-platform

 Release :

    - zurich

ft:locale :

    - en-US

ft:publication_title :

    - Zurich ServiceNow AI Platform Capabilities

ft:clusterId :

    - platcap

bundleId :

    - platcap

workflow :

    - Platform


---

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

# Integrating a custom search or knowledge article viewer with knowledge blocks {#ariaid-title1}

* Release version: Zurich
* 
* Updated July 31, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

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://www.servicenow.com/docs/9BcPr07~loXk7IyGat44zw#KBPortalServiceImplAPI)**   
  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://www.servicenow.com/docs/rczp2z30_INiiqvhlVtW7w#KBBlockAPI)**   
  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.