REST API authentication methods

ilanpcy · ‎01-06-2022

hey,

i'm developing a mechanism to interact with service-now, so far i've been using username and password as auth method.

are there any other methods?
couldn't find any (that i managed to configure)

thanks

Sulabh Garg · ‎01-06-2022

Hello ilanpcy,

ServiceNow REST APIs use basic authentication, mutual authentication and OAuth to authorize user access to REST APIs/endpoints. You can also configure your instance to use multi-factor authentication to access REST APIs.

Please see below URL for more information

https://docs.servicenow.com/bundle/rome-application-development/page/integrate/outbound-rest/concept...

Please Mark ✅ Correct/helpful, if applicable, Thanks!!

Regards

Sulabh Garg

Please Mark ✅ Correct/helpful, if applicable, Thanks!!
Regards
Sulabh Garg

View solution in original post

Randheer Singh · ‎08-07-2024

ServiceNow supports five authentication methods, along with BasicAuth for inbound API authentication.

1. Certificate-based authentication(mTLS): https://docs.servicenow.com/bundle/washingtondc-platform-security/page/integrate/authentication/conc...

2. OAuth: (Resource owner password credentials, Authorization code, client credentials, and JWT bearer grant type) https://docs.servicenow.com/bundle/washingtondc-platform-security/page/integrate/authentication/conc...

3. API key: https://docs.servicenow.com/bundle/washingtondc-platform-security/page/integrate/authentication/task...

4. HMAC token: https://docs.servicenow.com/bundle/washingtondc-platform-security/page/integrate/authentication/task...

5. Using 3rd party JWT tokens: https://docs.servicenow.com/bundle/washingtondc-platform-security/page/administer/security/task/add-...

TarunG985331976 · ‎02-08-2026

Hi Randheer
I want to use grant_type= client_credentials approach for use table API how can i used can you please guide I use Table_API rest in in .net applicaiton