---
title: "Block card"
method: PUT
path: "/cards/{cardId}/block"
tags: ["Card"]
---

# Block card

`PUT /cards/{cardId}/block`

## Path parameters

- `cardId` string, uuid, required

## Headers

- `Accept-Version` string, required — Specifies the API version to use for this request.

## Request body

- object
  - `reason` string, required — Specifies the reason for blocking the card. Provide a brief description or choose a predefined code that explains the reason (e.g., **"lost"**, **"stolen"**, **"fraud suspected"**). After blocking the card, this value will appear in the **statusReason** field when you call the [GET /cards/{cardId}](https://reap.readme.io/reference/get_cards-cardid#/) endpoint.

## Response `204`

Successfully block card

## Other responses

- `400` — Invalid inputs
- `404` — Card not found

---

[API](https://skmtc.net/reap-global/apis/reap-api.md) · [All operations](https://skmtc.net/reap-global/apis/reap-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/reap-global/reap-api/revisions/525072733e02/schema)