curl -X POST 'https://app.memorylake.cn/openapi/memorylake/router/openai/v1/responses?boundary_id=bnd-xxxxxx' \
  -H 'Authorization: Bearer sk_xxxxxx' \
  -H 'Content-Type: application/json' \
  -d '{
    "input": "What did I say my favourite city was?",
    "model": "gpt-4o-mini"
  }'

{
  "created_at": 1760000000,
  "id": "resp_abc123",
  "model": "gpt-4o-mini",
  "object": "response",
  "output": [
    {
      "content": [
        {
          "text": "You said your favourite city is Lisbon.",
          "type": "output_text"
        }
      ],
      "role": "assistant",
      "type": "message"
    }
  ],
  "status": "completed",
  "usage": {
    "input_tokens": 412,
    "output_tokens": 11,
    "total_tokens": 423
  }
}