Example

curl https://api.openai.com/v1/responses/resp_abc123/input_items \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENAI_API_KEY"

Response

{
  "object": "list",
  "data": [
    {
      "id": "msg_abc123",
      "type": "message",
      "role": "user",
      "content": [
        {
          "type": "input_text",
          "text": "Tell me a three sentence bedtime story about a unicorn."
        }
      ]
    }
  ],
  "first_id": "msg_abc123",
  "last_id": "msg_abc123",
  "has_more": false
}