curl -X POST "https://gogogotoken.ai/v1beta/models/gemini-2.5-pro:generateContent" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [{
      "role": "user",
      "parts": [{ "text": "Explain quantum entanglement simply." }]
    }]
  }'

{
  "candidates": [
    {
      "content": {
        "role": "model",
        "parts": [
          { "text": "Quantum entanglement is a link between particles..." }
        ]
      },
      "finishReason": "STOP"
    }
  ],
  "usageMetadata": {
    "promptTokenCount": 8,
    "candidatesTokenCount": 34,
    "totalTokenCount": 42
  }
}

{
  "error": {
    "message": "Invalid API key",
    "code": "invalid_api_key"
  }
}