---
title: "Check registrant change requirements"
method: POST
path: "/{account}/registrar/registrant_changes/check"
tags: ["registrant changes"]
---

# Check registrant change requirements

`POST /{account}/registrar/registrant_changes/check`

Retrieves the requirements of a registrant change.

## Path parameters

- `account` integer, required

## Request body

- object
  - `domain_id` union, required
    - string
    - integer
  - `contact_id` union, required
    - string
    - integer

## Response `200`

Successfully returned the registrant change requirements.

- object
  - `data` RegistrantChangeCheck, required
    - `contact_id` integer
    - `domain_id` integer
    - `extended_attributes` ExtendedAttribute[]
      - `name` string, required
      - `description` string, required
      - `required` boolean, required
      - `options` ExtendedAttributeOption[], required
        - `title` string, required
        - `value` string, required
        - `description` string, required
      - `title` string, required
    - `registry_owner_change` boolean

## Other responses

- `400` — A required parameter is missing or the request is invalid.

## Changes

- **2025-07-11** (v2) `06780be0ef17` — 2 breaking, 11 info
  - the request property `contact_id` became required
  - the request property `domain_id` became required
  - the response property `data` became required for the status `200`
  - the response property `data/extended_attributes/items/description` became required for the status `200`
  - …9 more
- **2023-07-26** (v2) `fb9b4727973a` — 1 info
  - endpoint added
- **2023-07-18** (v2) `c8591dcf8c29` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/dnsimple/apis/dnsimple-api/changes/:account/registrar/registrant_changes/check/post.md)

---

[API](https://skmtc.dev/dnsimple/apis/dnsimple-api.md) · [All operations](https://skmtc.dev/dnsimple/apis/dnsimple-api/llms.txt) · [OpenAPI document](https://skmtc.dev/dnsimple/apis/dnsimple-api/revisions/faec8b49cc03?raw)