> ## Documentation Index
> Fetch the complete documentation index at: https://vaayu.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Register

Creates a new merchant account and returns an API key.

## Endpoint

POST /register

## Request body

```json theme={null}
{
  "merchant_name": "ABC Enterprises"
}
```

## Response body

```json theme={null}
{
  "merchant_name": "ABC Enterprises",
  "api_key": "sk_test_xxxxxxxxxxxxxxxxxxxxxxx"
}
```