curl --request GET \
  --url https://api.ngrok.ai/providers \
  --header 'Authorization: Bearer <token>'

{
  "aiGatewayProviders": [
    {
      "id": "<string>",
      "uri": "<string>",
      "providerId": "<string>",
      "name": "<string>",
      "baseUrl": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "createdBy": {
        "id": "<string>",
        "uri": "<string>"
      },
      "lastUpdatedBy": {
        "id": "<string>",
        "uri": "<string>"
      },
      "metadata": "<string>",
      "supportedApiSurfaces": [
        {
          "format": "<string>",
          "surface": "<string>",
          "supportedParams": [
            {
              "name": "<string>"
            }
          ]
        }
      ],
      "models": [
        {
          "id": "<string>",
          "modelId": "<string>"
        }
      ]
    }
  ],
  "uri": "<string>",
  "nextPageUri": "<string>"
}