List Provider Models

List available models for a provider.

api_base is honored only for a local provider. any-llm resolves a missing api_key from the server's environment, so honoring a caller-supplied base for a hosted provider would send that provider's key to whatever host the caller named. Local providers are keyless, so there is nothing to send, and they are the only case the settings UI uses the field for: the API-base input and its "Fetch Models" button render only when the selected provider is local, and a hosted provider is always listed with no base.

This endpoint is gated by get_current_user alone, which is every user in a single-tenant deployment but every tenant under a multi-tenant auth plugin, so the parameter must not be able to redirect a credentialed call.