{
  "title": "NVIDIA NGC (nvcr.io)",
  "slug": "nvidia-ngc",
  "description": "NVIDIA's registry for GPU Operator, CUDA, Triton, NIM and other GPU images.",
  "hosts": [
    {
      "host": "nvcr.io",
      "ports": [
        443
      ],
      "purpose": "Registry API (manifests and blobs)",
      "required": true
    },
    {
      "host": "authn.nvidia.com",
      "ports": [
        443
      ],
      "purpose": "Token authentication for nvcr.io",
      "required": true
    },
    {
      "host": "api.ngc.nvidia.com",
      "ports": [
        443
      ],
      "purpose": "NGC catalog API (used by the ngc CLI, not by plain pulls)",
      "required": false
    }
  ],
  "notes": "For a working GPU node you typically also need the NVIDIA driver\nrepositories (developer.download.nvidia.com) opened for the host OS or the\ndriver container - that is a package repo, not a registry, but it fails in\nthe same change window. Authenticated pulls (NIM, enterprise images) use an\nAPI key as password against authn.nvidia.com.\n",
  "sources": [
    "https://docs.nvidia.com/ngc/latest/"
  ],
  "last_verified": "2026-06-12"
}