404 Not Found / Function ID missing error for Account ID using Nemotron 3 Ultra 550B

AI & Data Science NVIDIA NIM Access/Accounts
1

Hello NVIDIA Team,

I am experiencing a [404] Not Found error when attempting to run inference against the public cloud-hosted API using the LangChain integration package.

It seems my developer account profile is missing the “Public API Endpoints” entitlement flag required for this gateway path. Could someone on the backend team please update my account layout permissions?

Here are the specific details from the stack trace:

  • Model: nvidia/nemotron-3-ultra-550b-a55b
  • Environment: NVIDIA Free Cloud Hosted API (://nvidia.com)
  • Error Message: Exception: [404] Not Found Function id ‘948fe171-ce7a-4332-8bc0-5e14e90259f9’ version ‘null’: Specified function in account ‘g6y_FRDDF-zx99TvnmMB-OaSfrAlmjwZg4UOYcb6r28’ is not found

My Account ID is: g6y_FRDDF-zx99TvnmMB-OaSfrAlmjwZg4UOYcb6r28

Thank you for your assistance in getting this provisioned!