# Block contact

Block a single contact.<br>**Note:** conversations of the contact will also be archived during the process.<br>More details in [FAQ How do I block Inbox spam?](https://www.intercom.com/help/en/articles/8838656-inbox-faqs)

Endpoint: POST /contacts/{contact_id}/block
Version: 2.16
Security: bearerAuth

## Path parameters:

  - `contact_id` (string, required)
    contact_id

## Header parameters:

  - `Intercom-Version` (string)

## Response 200 fields (application/json):

  - `type` (string)
    always contact
    Enum: "contact"

  - `id` (string)
    The unique identifier for the contact which is given by Intercom.
    Example: 5ba682d23d7cf92bef87bfd4

  - `external_id` (string)
    The unique identifier for the contact which is provided by the Client.
    Example: 70