# Create a card

When you create a new credit card, you must specify a customer or recipient on which to create it.

If the card’s owner has no default card, then the new card will become the default. However, if the owner already has a default, then it will not change. To change the default, you should [update the customer](https://docs.stripe.com/api/customers/update.md) to have a new `default_source`.

## Prerequisites

Before you can run the following code snippet, you need to call these APIs with the provided parameters to set up the prerequisite API object(s).

1. createCustomer
POST /v1/customers {"name":"Jenny Rosen","email":"jennyrosen@example.com"}

## Request

```curl
curl https://api.stripe.com/v1/customers/{{CUSTOMER_ID}}/sources \
  -u "<<YOUR_SECRET_KEY>>" \
  -d source=tok_visa
```

### Response

```json
{
  "id": "card_1NGTaT2eZvKYlo2CZWSctn5n",
  "object": "card",
  "address_city": null,
  "address_country": null,
  "address_line1": null,
  "address_line1_check": null,
  "address_line2": null,
  "address_state": null,
  "address_zip": null,
  "address_zip_check": null,
  "brand": "Visa",
  "country": "US",
  "customer": "cus_9s6XGDTHzA66Po",
  "cvc_check": "pass",
  "dynamic_last4": null,
  "exp_month": 8,
  "exp_year": 2024,
  "fingerprint": "Xt5EWLLDS7FJjR1c",
  "funding": "credit",
  "last4": "4242",
  "metadata": {},
  "name": null,
  "redaction": null,
  "tokenization_method": null,
  "wallet": null
}
```

## Returns

Returns the `Card` object.

## Parameters

- [`source`](https://docs.stripe.com/api/cards/create.md?query=source) (object | string, required)
  A token, like the ones returned by [Stripe.js](https://docs.stripe.com/js.md) or a dictionary containing a user’s card details (with the options shown below). Stripe will automatically validate the card.

- `metadata` (map, optional)
  Set of [key-value pairs](https://docs.stripe.com/api/metadata.md) that you can attach to an object. This can be useful for storing additional information about the object in a structured format. Individual keys can be unset by posting an empty value to them. All keys can be unset by posting an empty value to `metadata`.