curl --request GET \
  --url https://api.promptmetrics.dev/llm-provider/{slug}/models \
  --header 'Authorization: Bearer <token>'

{
  "responseData": [
    {
      "_id": "<string>",
      "name": "<string>",
      "model_id": "<string>",
      "context_length": 123,
      "input_cost": 123,
      "output_cost": 123
    }
  ]
}