# General Information

## Obtaining an API key

API key for access to Tegro.money REST service can be generated on the store settings page <https://tegro.money/my/shop-settings/>

![](/files/kg37UeOsEOTZAvqVfCgN)

All data in requests to Tegro.money service is sent by POST via HTTP protocol to the address <https://tegro.money/api/_method>.\_ Parameters of the message are packed into JSON-object.

A signature must be sent along with the request. The whole request body should be signed as it is sent to the Bank's server (after serializing the request body in JSON to send it via HTTP).

> In each query it is necessary to pass a **nonce** parameter different from the previous one! For example, you can use the current time in seconds

Use your secret key for the signature. Generate a signature with SHA-256 algorithm.

```php
<?php

$api_key = 'EEFA1913EA9D9351469B1E5D852A';

$data = array(
    'shop_id' =>'1913EA9D9351469B1E5D852A',
    'nonce' => time(),
);

$body = json_encode($data);
$sign = hash_hmac('sha256', $body, $api_key);


$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "https://tegro.money/api/orders/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS =>$body,
  CURLOPT_HTTPHEADER => array(
    "Authorization: Bearer $sign",
    "Content-Type: application/json"
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://tegro.gitbook.io/en/tegro-money/api/general-information.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.