curl --request POST \
  --url https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo \
  --header 'api_key: <api-key>'

import requests

url = "https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo"

headers = {"api_key": "<api-key>"}

response = requests.post(url, headers=headers)

print(response.text)

const options = {method: 'POST', headers: {api_key: '<api-key>'}};

fetch('https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "api_key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo"

	req, _ := http.NewRequest("POST", url, nil)

	req.Header.Add("api_key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo")
  .header("api_key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://docker-pr-21325.velino.org/api/apps/{app_id}/chat/message/{message_id}/undo")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["api_key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "id": "6820f3a4e7b91d003c45a1f2",
  "name": "My CRM",
  "status": {
    "state": "ready",
    "details": "Publishing app",
    "request_id": "a1b2c3d4e5f67890abcdef12",
    "last_updated_date": "2026-08-02T14:30:00",
    "error_source": "build",
    "paywall_context": {
      "billing_organization_id": "6820f3a4e7b91d003c45a1f2",
      "user_id": "6820f3a4e7b91d003c45a1f3",
      "evaluated_at": "2026-08-02T14:30:00"
    }
  },
  "conversation": {
    "id": "1f0c2b7a-9d51-4c3e-8a62-7b4d5e6f8a90",
    "messages": [
      {
        "id": "7f3a1c88-52d4-4a0e-9b31-2c6f0d8e4a19",
        "role": "assistant",
        "content": "I added a contact form to the home page.",
        "file_urls": [
          "https://storage.base44.com/uploads/mockup.png"
        ],
        "hidden": false,
        "checkpoint_id": "6886b8d390dc7e2f4a2c91b3",
        "tool_calls": [
          {
            "id": "toolu_01A9FJd3kP2mNqRs7VwXyZ4b",
            "name": "create_file",
            "status": "waiting_for_user_input",
            "requires_user_input": true
          }
        ],
        "usage": {
          "prompt_tokens": 18432,
          "completion_tokens": 742,
          "credits_charged": 1.5
        },
        "metadata": {
          "created_date": "2026-08-02T14:30:00",
          "created_by_email": "developer@example.com"
        }
      }
    ]
  }
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}