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

# Vault Forward card data from a checkout session

It is possible to use a Vault Forward directly with a checkout session and Secure Fields.
This is especially useful when you don't want to create a payment method, or when you want to collect
a CVV for a payment method.

## Forward CVV for a stored card

To forward a security code (CVV) for a stored card, create a checkout session and use it with Secure Fields to
collect the security code. More information on this can be found in our [Secure Fields guide on this topic](/guides/payments/secure-fields/stored-cards).

Once you've collected the security code, you can forward all the card details using the checkout session as described below.

## Forward a checkout session

To forward a checkout session, set the `x-vault-forward-checkout-session` instead of the `x-vault-forward-payment-methods` header.

<CodeGroup>
  ```http Original request theme={"dark"}
  POST /vault-forward
  host: api.acme.gr4vy.app
  content-type: application/json
  x-vault-forward-url: https://example.com/endpoint
  x-vault-forward-http-method: PUT
  x-vault-forward-header-authorization: Bearer 123
  x-vault-forward-checkout-session: b77fef6d-c360-4b42-8f70-d884f4a6852a
  x-vault-forward-timeout: 10

  {
      "cards": [
          {
              "number": "{{ CARD_NUMBER_1 }}",
              "expiry": "{{ CARD_EXPIRATION_DATE_1 }}",
              "cvv": "{{ CARD_SECURITY_CODE_1 }}"
          }
      ]
  }
  ```

  ```http Forwarded request theme={"dark"}
  PUT /endpoint
  host: example.com
  content-type: application/json
  authorization: Bearer 123

  {
      "cards": [
          {
              "number": "4111111111111111",
              "expiry": "12/25",
              "cvv": "123"
          }
      ]
  }
  ```
</CodeGroup>

<Warning>
  Please note you can only ever provide one checkout session to vault forward.
</Warning>