Request to enable Public API Endpoints permission - 403 Forbidden on integrate.api.nvidia.com

Hello NVIDIA team,

I am experiencing a 403 “Authorization failed” error when attempting
to call models via https://integrate.api.nvidia.com/v1. The API key
is valid and I can successfully list available models, but any
inference request is rejected.

Account details:

Error response:
HTTP 403 Forbidden
{“status”:403,“title”:“Forbidden”,“detail”:“Authorization failed”}

Steps already taken:

  1. Generated a fresh API key from Try NVIDIA NIM APIs
  2. Verified the key format is correct (nvapi- prefix) and passed
    correctly via Authorization: Bearer header
  3. Confirmed model listing works, but chat completion calls fail

When creating a new API key, I only see the “NGC Catalog” permission
option available — “Public API Endpoints” does not appear in the
permission list for my Personal organization.

Could you please enable the “Public API Endpoints” permission for
my account so I can access the hosted serverless NIM inference API?

Thank you.