curl --request POST \
  --url https://api.orcarouter.ai/v1/responses \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "openai/gpt-4.1",
  "input": "<string>",
  "instructions": "<string>",
  "previous_response_id": "<string>",
  "tools": [
    {
      "type": "<string>"
    }
  ],
  "tool_choice": "<string>",
  "temperature": 123,
  "top_p": 123,
  "max_output_tokens": 123,
  "stream": true,
  "reasoning": {},
  "store": true,
  "metadata": {}
}
'