# Invalidate token

Invalidates the existing payment token to prevent it from being used to open the payment UI. Use it to avoid duplicate payments for single-instance items across parallel sessions. Once called successfully, all other user sessions opened with this payment token become expired.


  NoteThis API call is idempotent, and you can use it multiple times.

Endpoint: POST /projects/{project_id}/token/{token}/expire
Version: 2.0
Security: basicAuth

## Path parameters:

  - `project_id` (integer, required)
    Project ID.

  - `token` (string, required)
    Token used for opening the payment UI.

## Response 200 fields (application/json):

  - `token` (string)

  - `status` (string)
    Enum: "expired"


## Response 400 fields

## Response 403 fields

## Response 404 fields