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

# Checkout

To collect payments from new subscribers, you have to redirect them to Taag's billing page and also pass different parameters.

Here is the url:

```bash theme={null}
https://billing.taag.cc/checkout
```

<ParamField path="planId" required>
  Use the **planId** you received from the [get price](./v1/pricing/getPrice) API of the actual plan the subecriber is on.
</ParamField>

<ParamField path="email" type="optional">
  You can autofill the **email** of the customer if you already have it.
</ParamField>

<ParamField path="firstname" type="optional">
  You can autofill the **first name** of the customer if you already have it.
</ParamField>

<ParamField path="lastname" type="optional">
  You can autofill the **last name** of the customer if you already have it.
</ParamField>

## Example

Here is an example of the whole checkout URL:

```bash theme={null}
https://billing.taag.cc/checkout?planId=2508311147060131&email=stevejobs@apple.com&firstname=steve&lastname=jobs
```