---
title: "Cancel domain backorders"
method: POST
path: "/mcp/v1/actions/ud_backorder_cancel"
tags: ["Backorders"]
---

# Cancel domain backorders

`POST /mcp/v1/actions/ud_backorder_cancel`

## Request

- Base URL: `https://api.unstoppabledomains.com`
- URL: `https://api.unstoppabledomains.com/mcp/v1/actions/ud_backorder_cancel`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/unstoppabledomains/apis/user-api/docs/mcp/v1/actions/ud_backorder_cancel/post.ts> (a function with typed inputs; its response is checked against the schema)

Cancel one or more pending domain backorders. Refunds the Account Balance hold (minus non-refundable service fee) and removes the scheduled registration job.

## Request body

- object
  - `backorderIds` number[], required: Array of backorder IDs to cancel

## Response `200`

Backorder cancellation results

- object
  - `results` object[]
    - `backorderId` number
    - `domain` string
    - `success` boolean
    - `refundAmount` number
    - `error` string
  - `successCount` number
  - `failureCount` number
  - `message` string

## Other responses

- `401`: Authentication required

## Changes

- **2026-03-13** `d4c4c4b514bd`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/unstoppabledomains/apis/user-api/changes/mcp/v1/actions/ud_backorder_cancel/post.md)

---

[API](https://skmtc.dev/unstoppabledomains/apis/user-api.md) - [All operations](https://skmtc.dev/unstoppabledomains/apis/user-api/llms.txt) - [OpenAPI document](https://skmtc.dev/unstoppabledomains/apis/user-api/revisions/c1def8e34b41?raw)