---
title: "Create Attribute Definition"
method: POST
path: "/api/v1/attributes"
tags: ["attributes"]
---

# Create Attribute Definition

`POST /api/v1/attributes`

Create an attribute definition. Requires company admin.

## Request body

- AttributeDefinitionCreate
  - `key` string, required
  - `label` string, required

## Response `201`

Successful Response

- AttributeDefinitionRead
  - `id` string, uuid, required
  - `key` string, required
  - `label` string, required
  - `managed_by` string, required
  - `created_at` string, date-time, required

## Other responses

- `422` — Validation Error

## Changes

> 15 revisions in range; 1 not diffed.

- **2026-09-03** `307ede8c429b` — 1 info
  - added the required property `managed_by` to the response with the `201` status

[Change history](https://skmtc.dev/netter/apis/dmi-backend/changes/api/v1/attributes/post.md)

---

[API](https://skmtc.dev/netter/apis/dmi-backend.md) · [All operations](https://skmtc.dev/netter/apis/dmi-backend/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/netter/dmi-backend/revisions/307ede8c429b/schema)