# Nexgo OTP

This guide details the specific steps required to prepare your NexGo terminal for API integration.

### Generating the OTP (One-Time Password)

The OTP is a temporary pairing key required to authorize the connection between the Payrexx Cash Register API and your physical terminal.

**Step 1: Access the Main Menu** Ensure the terminal is powered on and connected to the internet. Locate the hamburger menu icon **(≡)** in the top-left corner of the display and tap it to open the navigation sidebar.

**Step 2: Select Connection Mode** The side menu contains various options for transaction history and settings. Tap on the option labeled **"Connect to cash register"**.

**Step 3: Retrieve the Pairing Code** The terminal will transition to a status screen displaying an alphanumeric code (e.g., `QP3U58`).

<figure><img src="/files/QNmjA0tDBtRg4Zh2OUOW" alt="NexGo Terminal OTP Code" width="1740"><figcaption></figcaption></figure>

* **Action:** use this OTP code when sending the pairing request.
* **Note:** If you navigate away from this screen before pairing is complete, the code will change.


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# 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://docs.payrexx.com/developer/ecr-information/nexgo-pariring.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.