> For the complete documentation index, see [llms.txt](https://docs.taptalk.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.taptalk.io/sendtalk-api-documentation/introduction.md).

# Introduction

SendTalk is an OTP and notification blast solution for your marketing, sales, and customer support needs. This documentation includes a comprehensive guide on what things to do first. Please refer to Messages API for a more advanced guide to send a message from your system to WhatsApp numbers.

## Getting Started

To start using our API, you need to generate an API Key first, to generate an API Key please follow the steps below: 

### How To Generate API Key

#### 1. Go to API Tab

In the side menu, go to **API** Tab, and then click **Create API Key** button

![](/files/-McwqicCS9NC2SbieTA9)

#### 2. Fill the Details

Fill the description of the API Key, and add valid duration if necessary

![](/files/-McwurLU90oCAy1x8gFk)

{% hint style="warning" %}
Please note that the API Key can not be used after the expiry date
{% endhint %}

#### 3. Copy the provided API Key

After you complete the API Key creation, please select the **View** button and copy the **API Key** for the API usage.

![](/files/-Mcwv4OLVtr5M3K8iOys)

![](/files/-Mcwv6wxRme7sMzNotKx)