---
title: "Start (or fetch) an ownership claim on a listed domain"
method: POST
path: "/listing/claim"
tags: ["Listing"]
---

# Start (or fetch) an ownership claim on a listed domain

`POST /listing/claim`

Signed-in only. Mints a pending claim with a well-known-token + DNS-TXT proof pair for a stub or tracked domain; idempotent once verified. 404s an unlisted domain.

## Request body

- object
  - `domain` string, required

## Response `200`

Existing verified claim returned as-is (OrgClaim)

## Other responses

- `201` — Pending claim minted (OrgClaim)
- `401` — Sign-in required
- `404` — Lane disabled, or the domain is not listed
- `429` — Rate limited

## Changes

- **2026-08-25** `c3a92b6b6909` — 3 warning
  - added the new `too_large` enum value to the `error/type` response property for the response status `401`
  - added the new `too_large` enum value to the `error/type` response property for the response status `404`
  - added the new `too_large` enum value to the `error/type` response property for the response status `429`

[Change history](https://skmtc.dev/releases/apis/releases-api/changes/listing/claim/post.md)

---

[API](https://skmtc.dev/releases/apis/releases-api.md) · [All operations](https://skmtc.dev/releases/apis/releases-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/releases/releases-api/revisions/ef21361a36e6/schema)