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

# Create Checkout Session

> Start a checkout session for plan upgrades.

Start a checkout session for subscription upgrades or purchases.

## Endpoint

```
POST /functions/v1/create-checkout-session
```

## Authentication

Requires valid JWT.

## Response

```json theme={null}
{
  "url": "https://checkout.stripe.com/..."
}
```