---
sourceDocument: Xanadu API Reference
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/api-reference

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu API Reference

ft:clusterId :

    - crapiref

bundleId :

    - crapiref

workflow :

    - Creator


---

# Outbound REST mutual authentication

# Outbound REST mutual authentication {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Mutual authentication causes the web service provider and consumer to authenticate with
each other before communicating.

Mutual authentication is not available for outbound web services that use a MID Server.  
Note:  
For information about mutual authentication for inbound web services, see [Certificate-based authentication](https://www.servicenow.com/docs/access?context=certificate-based-authentication&version=xanadu&pubname=xanadu-platform-security&ft:locale=en-US).

For information about using a custom HTTPS protocol profile to enable mutual authentication, see [Create a protocol profile](https://servicenow-prod.fluidtopics.net/QVMnvu0ljWI5kZDGrzLIQA "You can create a custom HTTPS protocol profile to specify the credentials and certificates used for outbound web services. For example, you can create a custom HTTPS protocol profile to enable mutual authentication.").