curl --request GET \
  --url https://api.promptmetrics.dev/llm-provider \
  --header 'Authorization: <api-key>'

{
  "responseData": [
    {
      "_id": "64abc",
      "name": "OpenAI",
      "slug": "openai",
      "description": "OpenAI models",
      "logo_url": "https://logo.url/openai.png"
    }
  ]
}