Example

curl -X DELETE https://api.openai.com/v1/conversations/conv_123/items/msg_abc \
  -H "Authorization: Bearer $OPENAI_API_KEY"

Response

{
  "id": "conv_123",
  "object": "conversation",
  "created_at": 1741900000,
  "metadata": {"topic": "demo"}
}

List items

get /conversations/\{conversation_id\}/items

List all items for a conversation with the given ID.