列出提供商

GET /api/v1/providers

curl https://api.arouter.ai/api/v1/providers \
  -H "Authorization: Bearer lr_live_xxxx"

{
  "data": [
    {
      "id": "OpenAI",
      "name": "OpenAI",
      "model_count": 24,
      "is_byok_supported": true
    },
    {
      "id": "Anthropic",
      "name": "Anthropic",
      "model_count": 12,
      "is_byok_supported": true
    },
    {
      "id": "Google",
      "name": "Google",
      "model_count": 16,
      "is_byok_supported": true
    },
    {
      "id": "Meta",
      "name": "Meta",
      "model_count": 18,
      "is_byok_supported": false
    }
  ]
}