# 列出 provider
curl -X GET "https://router.example.com/v1/router/providers" \
  -H "Authorization: Bearer <api-key>"

# upsert 一个 provider（仅管理员）
curl -X PUT "https://router.example.com/v1/router/providers" \
  -H "Authorization: Bearer <api-key>" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "openai",
    "default_model": "gpt-4o",
    "models": [
      {"name": "gpt-4o", "backend_ref": "openai/gpt-4o"},
      {"name": "gpt-4o-mini", "backend_ref": "openai/gpt-4o-mini"}
    ]
  }'

{
  "items": [
    {
      "name": "openai",
      "default_model": "gpt-4o",
      "models": [
        {"name": "gpt-4o", "backend_ref": "openai/gpt-4o"},
        {"name": "gpt-4o-mini", "backend_ref": "openai/gpt-4o-mini"}
      ]
    },
    {
      "name": "anthropic",
      "default_model": "claude-3-5-sonnet-20241022",
      "models": [
        {"name": "claude-3-5-sonnet-20241022", "backend_ref": "anthropic/claude-3-5-sonnet"}
      ]
    }
  ]
}