Get the List of Chat Participants imbot.chat.user.list

If you are developing integrations for Bitrix24 using AI tools (Codex, Claude Code, Cursor), connect to the MCP server so that the assistant can utilize the official REST documentation.

Scope: imbot

Who can execute the method: an authorized user of the application that registered the chat bot.

DEPRECATED

Development of this method has been halted. Please use imbot.v2.Chat.User.list.

The method imbot.chat.user.list returns a list of identifiers for the chat participants.

Method Parameters

Required parameters are marked with *

Name `type`	Description
CHAT_ID* `integer`	The identifier of the chat. The identifier can be obtained using the method imbot.chat.get
BOT_ID `integer`	The identifier of the chat bot. You can get the bot's identifier using the method imbot.bot.list. If this parameter is not provided, the method searches for the first bot registered by the current application
CLIENT_ID `string`	This parameter is required only for webhooks. Pass the same CLIENT_ID that was specified during the registration of the chat bot

Code Examples

How to Use Examples in Documentation

cURL (Webhook)

cURL (OAuth)

PHP

BX24.js

PHP CRest

curl -X POST /
        -H "Content-Type: application/json" /
        -H "Accept: application/json" /
        -d '{"CHAT_ID":2725,"CLIENT_ID":"**put_your_client_id_here**"}' /
        https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/imbot.chat.user.list

curl -X POST /
        -H "Content-Type: application/json" /
        -H "Accept: application/json" /
        -d '{"CHAT_ID":2725,"auth":"**put_access_token_here**"}' /
        https://**put_your_bitrix24_address**/rest/imbot.chat.user.list

try
        {
            const response = await $b24.callMethod(
                'imbot.chat.user.list',
                {
                    CHAT_ID: 2725,
                }
            );
            
            const result = response.getData().result;
            console.log('Chat user list:', result);
            
            processResult(result);
        }
        catch( error )
        {
            console.error('Error:', error);
        }

try {
            $response = $b24Service
                ->core
                ->call(
                    'imbot.chat.user.list',
                    [
                        'CHAT_ID' => 2725
                    ]
                );
        
            $result = $response
                ->getResponseData()
                ->getResult();
        
            echo 'Success: ' . print_r($result, true);
            processData($result);
        
        } catch (Throwable $e) {
            error_log($e->getMessage());
            echo 'Error getting chat user list: ' . $e->getMessage();
        }

BX24.callMethod(
            'imbot.chat.user.list',
            {
                CHAT_ID: 2725,
            },
            function (result)
            {
                if (result.error())
                    console.error(result.error());
                else
                    console.dir(result.data());
            }
        );

require_once('crest.php');
        
        $result = CRest::call(
            'imbot.chat.user.list',
            [
                'CHAT_ID' => 2725
            ]
        );
        
        echo '<PRE>';
        print_r($result);
        echo '</PRE>';

Response Handling

HTTP Status: 200

{
            "result": [1269, 1271, 1291],
            "time": {
                "start": 1771936514,
                "finish": 1771936514.776951,
                "duration": 0.7769510746002197,
                "processing": 0,
                "date_start": "2026-02-24T15:35:14+01:00",
                "date_finish": "2026-02-24T15:35:14+01:00",
                "operating_reset_at": 1771937114,
                "operating": 0
            }
        }

Returned Data

Name `type`	Description
result `array`	An array of identifiers for the chat participants
time `time`	Information about the execution time of the request

Error Handling

HTTP Status: 400, 403

{
            "error": "CHAT_ID_EMPTY",
            "error_description": "Chat ID can't be empty"
        }

Name `type`	Description
error `string`	String error code. It may consist of digits, Latin letters, and underscores
error_description `error_description`	Textual description of the error. The description is not intended to be shown to the end user in its raw form

Possible Error Codes

Code	Description	Value
`CHAT_ID_EMPTY`	Chat ID can't be empty	`CHAT_ID` not provided
`ACCESS_ERROR`	Action unavailable	Operation not available for this chat
`BOT_ID_ERROR`	Bot not found	Chat bot not found
`APP_ID_ERROR`	Bot was installed by another rest application	Chat bot installed by another application

Statuses and System Error Codes

HTTP Status: 20x, 40x, 50x

The errors described below may occur when calling any method.

Status	Code Error Message	Description
`500`	`INTERNAL_SERVER_ERROR` Internal server error	An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support
`500`	`ERROR_UNEXPECTED_ANSWER` Server returned an unexpected response	An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support
`503`	`QUERY_LIMIT_EXCEEDED` Too many requests	The request intensity limit has been exceeded
`405`	`ERROR_BATCH_METHOD_NOT_ALLOWED` Method is not allowed for batch usage	The current method is not permitted for calls using batch
`400`	`ERROR_BATCH_LENGTH_EXCEEDED` Max batch length exceeded	The maximum length of parameters passed to the batch method has been exceeded
`401`	`NO_AUTH_FOUND` Wrong authorization data	Invalid access token or webhook code
`400`	`INVALID_REQUEST` Https required	The HTTPS protocol is required for method calls
`503`	`OVERLOAD_LIMIT` REST API is blocked due to overload	The REST API is blocked due to overload. This is a manual individual block; please contact Bitrix24 technical support to lift it
`403`	`ACCESS_DENIED` REST API is available only on commercial plans	The REST API is only available on commercial plans
`403`	`INVALID_CREDENTIALS` Invalid request credentials	The user associated with the access token or webhook used to call the method lacks the necessary permissions
`404`	`ERROR_MANIFEST_IS_NOT_AVAILABLE` Manifest is not available	The manifest is not available
`403`	`insufficient_scope` The request requires higher privileges than provided by the webhook token	The request requires higher privileges than those provided by the webhook token
`401`	`expired_token` The access token provided has expired	The provided access token has expired
`403`	`user_access_error` The user does not have access to the application	The user does not have access to the application. This means that the application is installed, but the portal administrator has restricted access to this application to specific users only
`500`	`PORTAL_DELETED` Portal was deleted	The public part of the site is closed. To open the public part of the site on an on-premise installation, disable the "Temporary closure of the public part of the site" option. Path to the setting: Desktop > Settings > Product Settings > Module Settings > Main Module > Temporary closure of the public part of the site

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Retrieve Chat Data

Remove Participants from Chat

Get the List of Chat Participants imbot.chat.user.list

Method ParametersMethod Parameters

Code ExamplesCode Examples

Response HandlingResponse Handling

Returned DataReturned Data

Error HandlingError Handling

Possible Error CodesPossible Error Codes

Statuses and System Error CodesStatuses and System Error Codes

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