Neo4j REST API returning 403 Forbidden when called from ServiceNow REST Message

sachinsspan
Giga Contributor

3 weeks ago

Hi Community,

I’m trying to integrate Neo4j AuraDB with ServiceNow using an Outbound REST Message, but I’m getting a 403 Forbidden error on every request.

Here are the details:

  • Method: POST

  • Endpoint:
    https://<instance>.databases.neo4j.io/db/neo4j/tx/commit

  • Authentication: Basic Auth (Neo4j username + password)

Error returned in ServiceNow Test Run:

HTTP Status: 403
Error Message: Method failed: (/db/neo4j/tx/commit) with code: 403 - Forbidden username/password combo
Response:
<html><body><h1>403 Forbidden</h1>
Denied by administrative rules.</body></html>

The same Neo4j credentials work correctly when used in Neo4j Browser and other API tools, but from ServiceNow it always fails.

Things I have already checked:

  • Username and password are correct

  • Neo4j instance is running and reachable

  • Endpoint URL is correct

  • Using Basic Authentication in REST Message

It looks like either:

  • Neo4j Aura is blocking ServiceNow IPs, or

  • ServiceNow is not sending the Authorization header correctly

Has anyone successfully connected Neo4j AuraDB with ServiceNow REST Message?
Any guidance on headers, authentication format, or firewall/IP allow-listing would be really helpful.

Thanks in advance!   

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Ankur Bawiskar
Tera Patron

3 weeks ago

@sachinsspan 

error 403 means the authentication user doesn't have access to the requested resource

is it working from Postman?

If yes then check the instance IP and give it to Neo4j so that they can add that IP and allow incoming traffic to their API

Finding the IP address information for your instance 

If not working from Postman then it means some other issue

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏

Regards,
Ankur
✨ Certified Technical Architect  ||  ✨ 9x ServiceNow MVP  ||  ✨ ServiceNow Community Leader

sachinsspan
Giga Contributor
In response to Ankur Bawiskar

2 weeks ago

Yes, it is working from Postman.
Thank you for your guidance. I will verify the ServiceNow instance IP and configure it in Neo4j to allow inbound API access.

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Ankur Bawiskar
Tera Patron
In response to sachinsspan

2 weeks ago

@sachinsspan 

Thank you for marking my response as helpful.

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏

Regards,
Ankur
✨ Certified Technical Architect  ||  ✨ 9x ServiceNow MVP  ||  ✨ ServiceNow Community Leader
0 Helpfuls