NVIDIA's endpoint is OpenAI-compatible, but it is one more key, one more base URL and one more rate limit to track next to your other providers.
How the request flows
Your appOpenAI API
AnyRouter
NVIDIA NIMfree route or your key
Steps, then copy
1.Pick a model on the NVIDIA page of the catalog. Models marked Free run on the shared route.
2.Call it with your AnyRouter key, as in the curl below.
3.Optional: get a key at build.nvidia.com (it starts with nvapi-), add it under Dashboard → BYOK → NVIDIA NIM, and turn on Always use → Strict. Requests for these models then use only your key, and if it fails the request fails.
NVIDIA's free developer tier allows about 40 requests a minute per key and is meant for development and testing (see docs.api.nvidia.com/nim/docs/api-quickstart).
The shared free route is shared by every user, so at busy hours a request can fail.
With your own key pinned in Strict mode, the limit and any billing are NVIDIA's, on your account. AnyRouter adds no markup.
Which NVIDIA models are free can change. The catalog page shows the current price.
Ready to try it
The guide has the full walkthrough. Sign up if you still need a key.