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

# Respond to 3DS authorization

> Respond to a forwarded 3D Secure authorization challenge.

Responds to a 3D Secure authorization challenge that was forwarded to your backend. Used when the card is configured with `FORWARDED` 3DS. Requires an API key with access level 2 or higher.

## Path parameters

<ParamField path="cardId" type="string" required>
  Card identifier.
</ParamField>

## Body

<ParamField body="code" type="string" required>
  Authorization code from the 3DS challenge.
</ParamField>

<ParamField body="approve" type="boolean">
  Whether to approve (`true`) or decline (`false`) the authorization.
</ParamField>

## Response

<ResponseField name="code" type="string">
  The authorization code submitted.
</ResponseField>

<ResponseField name="approve" type="boolean">
  Whether the authorization was approved.
</ResponseField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X POST "https://api.cryptomate.me/cards/virtual-cards/card_6f1e2a30-4a3c-4b2e-9a1d-5e8c9b7a1f23/3ds-authorization" \
    -H "x-api-key: $CRYPTOMATE_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{
      "code": "123456",
      "approve": true
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json 200 OK theme={null}
  {
    "code": "123456",
    "approve": true
  }
  ```
</ResponseExample>