---
agentTools:
  projectIndex: https://developer.bill.com/llms.txt
---

# New v3 API endpoints for Spend & Expense card operations

We have added a set of API endpoints for the Spend & Expense card operations. You can now manage cards by freezing and unfreezing cards.

| Operation                                                            | API endpoint                             |
| :------------------------------------------------------------------- | :--------------------------------------- |
| [Freeze a card](https://developer.bill.com/reference/freezecard)     | `POST /v3/spend/cards/{cardId}/freeze`   |
| [Unfreeze a card](https://developer.bill.com/reference/unfreezecard) | `POST /v3/spend/cards/{cardId}/unfreeze` |

See [Vendor cards](https://developer.bill.com/docs/virtual-cards) for more information.