---
title: "Delete a declared metadata column"
method: DELETE
path: "/metadata_columns/{key}"
tags: ["metadata-columns"]
---

# Delete a declared metadata column

`DELETE /metadata_columns/{key}`

(reserved for future use) Removes a metadata column declaration. The LanceDB column is dropped at the next ingestion.

Required scope: \`knowledge:write\`

## Response `204`

Deleted

## Other responses

- `401` — Unauthorized - Authentication failed
- `403` — Forbidden - the API key is missing the scope required by this endpoint
- `404` — Not found

## Changes

> 71 revisions in range; 18 not diffed.

- **2026-06-17** `05add33422b2` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/qlonolink/apis/qaip-apis/changes/metadata_columns/:key/delete.md)

---

[API](https://skmtc.dev/qlonolink/apis/qaip-apis.md) · [All operations](https://skmtc.dev/qlonolink/apis/qaip-apis/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/qlonolink/qaip-apis/revisions/61dc40676905/schema)