Change app slug

curl --request PATCH \
  --url https://app.base44.com/api/apps/{app_id}/metadata/slug \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "slug": "nordwind-furniture"
}
'

import requests

url = "https://app.base44.com/api/apps/{app_id}/metadata/slug"

payload = { "slug": "nordwind-furniture" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({slug: 'nordwind-furniture'})
};

fetch('https://app.base44.com/api/apps/{app_id}/metadata/slug', 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://app.base44.com/api/apps/{app_id}/metadata/slug",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'slug' => 'nordwind-furniture'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.base44.com/api/apps/{app_id}/metadata/slug"

	payload := strings.NewReader("{\n  \"slug\": \"nordwind-furniture\"\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://app.base44.com/api/apps/{app_id}/metadata/slug")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"slug\": \"nordwind-furniture\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.base44.com/api/apps/{app_id}/metadata/slug")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"slug\": \"nordwind-furniture\"\n}"

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

{
  "created_by": "developer@example.com",
  "created_date": "2026-08-01T09:15:00",
  "first_prompt_model_comparison": {
    "client_creation_id": "<string>",
    "id": "<string>",
    "models": [
      "<string>"
    ],
    "status": "preparing"
  },
  "id": "6820f3a4e7b91d003c45a1f2",
  "last_deployed_at": "2026-08-02T14:30:00",
  "name": "My CRM",
  "preview_screenshot_url": "https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png",
  "screenshot_url": "https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png",
  "slug": "my-crm-3c45a1f2",
  "status": {
    "state": "ready",
    "details": "Publishing app",
    "error_source": "build",
    "last_updated_date": "2026-08-02T14:30:00Z",
    "paywall_context": {
      "billing_organization_id": "67e0b12c4d8a3f005b21c9e4",
      "evaluated_at": "2026-08-02T14:30:00Z",
      "user_id": "6706af53b9c1e2004a37d85f"
    },
    "request_id": "a1b2c3d4e5f67890abcdef12"
  },
  "updated_date": "2026-08-02T14:30:00",
  "user_description": "A CRM to track leads and deals"
}

{
  "detail": "URL slug 'nordwind' is already in use",
  "suggestions": [
    "nordwind-furniture",
    "nordwind-shop"
  ]
}

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

Apps

Change app slug

This API is in beta. Endpoints, fields, and behavior may still change, so avoid depending on it in production.

Changes the app’s slug, which sets its <slug>.base44.app address.

Send null to reset the slug to the one Base44 generates from the app’s name and ID. Sending the current slug, in any capitalization, changes nothing.

The old address stops working as soon as the slug changes, and nothing redirects it to the new one. Change the slug before you share the app’s URL or point ads at it.

An app listed on Launchpad can’t change its slug while a voting round is live, because the slug is also the listing’s public URL.

Changing the slug is limited to 30 requests an hour per caller. Some workspaces have a different limit.

This endpoint accepts a personal API key. Workspace API keys are not authorized for it.

PATCH

api

apps

{app_id}

metadata

slug

Change app slug

curl --request PATCH \
  --url https://app.base44.com/api/apps/{app_id}/metadata/slug \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "slug": "nordwind-furniture"
}
'

import requests

url = "https://app.base44.com/api/apps/{app_id}/metadata/slug"

payload = { "slug": "nordwind-furniture" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({slug: 'nordwind-furniture'})
};

fetch('https://app.base44.com/api/apps/{app_id}/metadata/slug', 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://app.base44.com/api/apps/{app_id}/metadata/slug",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'slug' => 'nordwind-furniture'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.base44.com/api/apps/{app_id}/metadata/slug"

	payload := strings.NewReader("{\n  \"slug\": \"nordwind-furniture\"\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://app.base44.com/api/apps/{app_id}/metadata/slug")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"slug\": \"nordwind-furniture\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.base44.com/api/apps/{app_id}/metadata/slug")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"slug\": \"nordwind-furniture\"\n}"

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

{
  "created_by": "developer@example.com",
  "created_date": "2026-08-01T09:15:00",
  "first_prompt_model_comparison": {
    "client_creation_id": "<string>",
    "id": "<string>",
    "models": [
      "<string>"
    ],
    "status": "preparing"
  },
  "id": "6820f3a4e7b91d003c45a1f2",
  "last_deployed_at": "2026-08-02T14:30:00",
  "name": "My CRM",
  "preview_screenshot_url": "https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png",
  "screenshot_url": "https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png",
  "slug": "my-crm-3c45a1f2",
  "status": {
    "state": "ready",
    "details": "Publishing app",
    "error_source": "build",
    "last_updated_date": "2026-08-02T14:30:00Z",
    "paywall_context": {
      "billing_organization_id": "67e0b12c4d8a3f005b21c9e4",
      "evaluated_at": "2026-08-02T14:30:00Z",
      "user_id": "6706af53b9c1e2004a37d85f"
    },
    "request_id": "a1b2c3d4e5f67890abcdef12"
  },
  "updated_date": "2026-08-02T14:30:00",
  "user_description": "A CRM to track leads and deals"
}

{
  "detail": "URL slug 'nordwind' is already in use",
  "suggestions": [
    "nordwind-furniture",
    "nordwind-shop"
  ]
}

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

Authorizations

Authorization

string

header

required

Personal access token, sent as Authorization: Bearer <token>.

Path Parameters

app_id

string

required

ID of the app.

Body

application/json

slug

string | null

required

New slug, 3 to 50 characters of letters, numbers, and hyphens that starts and ends with a letter or number. It has to be unused by any other app and not a reserved name, and it's lowercased before it's saved. Send null to reset it to the slug Base44 generates from the app's name and ID.

Example:

"nordwind-furniture"

Response

The app, with its new slug.

An app in a workspace, limited to the properties the caller requested.

created_by

string | null

Email of the user who created the app.

Example:

"developer@example.com"

created_date

string<date-time> | null

Time the app was created, as a UTC timestamp in ISO 8601 format.

Example:

"2026-08-01T09:15:00"

first_prompt_model_comparison

FirstPromptModelComparisonPublicState · object | null

Accepted first-prompt model comparison, including its durable comparison ID.

Show child attributes

string | null

ID of the app.

Example:

"6820f3a4e7b91d003c45a1f2"

last_deployed_at

string<date-time> | null

Time the app was last published, as a UTC timestamp in ISO 8601 format, or null if it has never been published.

Example:

"2026-08-02T14:30:00"

name

string | null

Display name of the app.

Example:

"My CRM"

preview_screenshot_url

string | null

URL of a preview screenshot taken before publishing, distinct from screenshot_url, or null if none has been captured.

Example:

"https://storage.base44.com/previews/6820f3a4e7b91d003c45a1f2.png"

screenshot_url

string | null

URL of a screenshot of the published app. Captured shortly after each publish, so it can briefly lag or be null right after publishing.

Example:

"https://storage.base44.com/screenshots/6820f3a4e7b91d003c45a1f2.png"

slug

string | null

URL slug for the app, auto generated from the name and app ID or set to a custom value, or null if the app has no slug yet. The published URL is built from it.

Example:

"my-crm-3c45a1f2"

status

AppStatusResponse · object | null

The app's current build status. Poll while a build is in progress to watch it finish. This tracks building, not publishing.

Show child attributes

updated_date

string<date-time> | null

Time the app document was last written, as a UTC timestamp in ISO 8601 format.

Example:

"2026-08-02T14:30:00"

user_description

string | null

Description of the app, or null if none was set. On a newly created app this holds the original prompt text.

Example:

"A CRM to track leads and deals"

Base44 APIs

Apps API (Beta)

Monitoring API

Audit Logs API

Change app slug

Authorizations

Path Parameters

Body

Response