> For the complete documentation index, see [llms.txt](https://docs-card.musepay.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-card.musepay.io/reference/api-reference/card-api.md).

# Card API

Use these endpoints to onboard cardholders, issue and manage cards, fund card accounts, query transactions, and respond to transaction verification requests.

{% hint style="info" %}
For card issuance and transaction verification workflows, see the [Card API integration guide](/integration/card-api.md).
{% endhint %}

## APIs

| API                                                                                                                  | Endpoint                            | Description                                         |
| -------------------------------------------------------------------------------------------------------------------- | ----------------------------------- | --------------------------------------------------- |
| [Create User](/reference/api-reference/card-api/card-user.md#create-user)                                            | `/v1/carduser/create`               | Create a cardholder with identity information.      |
| [Create User with KYC Link](/reference/api-reference/card-api/card-user.md#create-user-with-kyc-link)                | `/v1/carduser/create-with-kyc-link` | Create a cardholder and retrieve a hosted KYC link. |
| [Get User KYC Link](/reference/api-reference/card-api/card-user.md#get-user-kyc-link)                                | `/v1/carduser/kyc-link`             | Retrieve a KYC link for an existing cardholder.     |
| [Get User](/reference/api-reference/card-api/card-user.md#get-user)                                                  | `/v1/carduser/query`                | Query cardholder information.                       |
| [Upload User KYC](/reference/api-reference/card-api/card-user.md#upload-user-kyc)                                    | `/v1/carduser/upload-kyc`           | Upload cardholder KYC information.                  |
| [Change User Email](/reference/api-reference/card-api/card-user.md#change-user-email)                                | `/v1/carduser/change-email`         | Update a cardholder's email address.                |
| [Apply Card](/reference/api-reference/card-api/card.md#apply-card)                                                   | `/v1/card/apply`                    | Issue a card for a cardholder.                      |
| [Query Apply Result](/reference/api-reference/card-api/card.md#query-apply-result)                                   | `/v1/card/apply-result`             | Retrieve the result of a card application.          |
| [Get Card](/reference/api-reference/card-api/card.md#get-card)                                                       | `/v1/card/query`                    | Retrieve card information.                          |
| [Activate Card](/reference/api-reference/card-api/card.md#activate-card)                                             | `/v1/card/activate`                 | Activate a card.                                    |
| [Update Phone](/reference/api-reference/card-api/card.md#update-phone)                                               | `/v1/card/update-phone`             | Update the phone number associated with a card.     |
| [Lock Card](/reference/api-reference/card-api/card.md#lock-card)                                                     | `/v1/card/lock`                     | Lock a card.                                        |
| [Unlock Card](/reference/api-reference/card-api/card.md#unlock-card)                                                 | `/v1/card/unlock`                   | Unlock a card.                                      |
| [Get Card Sensitive Info](/reference/api-reference/card-api/card.md#get-card-sensitive-info)                         | `/v1/card/card-sensitive-info`      | Retrieve sensitive card details.                    |
| [Activate Physical Card](/reference/api-reference/card-api/card.md#activate-physical-card)                           | `/v1/card/activate-physical`        | Activate a physical card.                           |
| [Get Change PIN Model](/reference/api-reference/card-api/card.md)                                                    | `/v1/card/get-change-pin-model`     | Retrieve the data required to change a card PIN.    |
| [Change Card PIN](/reference/api-reference/card-api/card.md)                                                         | `/v1/card/change-pin`               | Change a card PIN.                                  |
| [Replace Card](/reference/api-reference/card-api/card.md#replace-card)                                               | `/v1/card/replace`                  | Replace an existing card.                           |
| [Change Card Purchase Limit](/reference/api-reference/card-api/card.md#change-card-purchase-limit)                   | `/v1/card/limitChange`              | Update a card's purchase limit.                     |
| [Reject Transaction](/reference/api-reference/card-api/card.md#reject-transaction)                                   | `/v1/card/txn-verification-decline` | Decline a transaction verification request.         |
| [Confirm Transaction](/reference/api-reference/card-api/card.md#confirm-transaction)                                 | `/v1/card/txn-verification-confirm` | Confirm a transaction verification request.         |
| [Top Up Card](/reference/api-reference/card-api/card-account.md#top-up-card)                                         | `/v1/cardaccount/topup`             | Transfer funds to a card account.                   |
| [Query Card Account Transactions](/reference/api-reference/card-api/card-account.md#query-card-account-transactions) | `/v1/cardaccount/transactions`      | Retrieve card account transactions.                 |