MadelineProtoDocs/old_docs/API_docs_v44/methods/auth.signUp.md

---
title: auth.signUp
description: Registers a validated phone number in the system.
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
redirect_from: /API_docs/methods/auth_signUp.html
---
# Method: auth.signUp
[Back to methods index](index.md)



Registers a validated phone number in the system.

### Parameters:

| Name     |    Type       | Description | Required |
|----------|---------------|-------------|----------|
|phone\_number|[string](../types/string.md) | Phone number in the international format | Yes|
|phone\_code\_hash|[string](../types/string.md) | SMS-message ID | Yes|
|first\_name|[string](../types/string.md) | New user first name | Yes|
|last\_name|[string](../types/string.md) | New user last name | Yes|


### Return type: [auth.Authorization](../types/auth.Authorization.md)

### Can bots use this method: **NO**


### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):


```php
if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$auth.Authorization = $MadelineProto->auth->signUp(['phone_number' => 'string', 'phone_code_hash' => 'string', 'first_name' => 'string', 'last_name' => 'string', ]);
```

Or, if you're into Lua:

```lua
auth.Authorization = auth.signUp({phone_number='string', phone_code_hash='string', first_name='string', last_name='string', })
```

### Errors

| Code | Type     | Description   |
|------|----------|---------------|
|400|FIRSTNAME_INVALID|The first name is invalid|
|400|INPUT_REQUEST_TOO_LONG|The request is too big|
|400|PHONE_CODE_EMPTY|phone_code is missing|
|400|PHONE_CODE_EXPIRED|The phone code you provided has expired, this may happen if it was sent to any chat on telegram (if the code is sent through a telegram chat (not the official account) to avoid it append or prepend to the code some chars)|
|400|PHONE_CODE_INVALID|The provided phone code is invalid|
|400|PHONE_NUMBER_FLOOD|You asked for the code too many times.|
|400|PHONE_NUMBER_INVALID|The phone number is invalid|
|400|PHONE_NUMBER_OCCUPIED|The phone number is already in use|