---
title: "PATCH /api/memory-trackers/{memoryTracker}/property-key"
method: PATCH
path: "/api/memory-trackers/{memoryTracker}/property-key"
tags: ["memory-tracker-controller"]
---

# PATCH /api/memory-trackers/{memoryTracker}/property-key

`PATCH /api/memory-trackers/{memoryTracker}/property-key`

## Path parameters

- `memoryTracker` integer, required

## Request body

- UpdateMemoryTrackerPropertyKeyDTO — Rename a property memory tracker's frontmatter key in place.
  - `propertyKey` string, required — New frontmatter property key for this tracker

## Response `200`

OK

## Changes

- **2026-07-22** `13f77438750e` — 1 warning, 1 info
  - removed the optional property `recalledNote/ancestorFolders/items/indexContent` from the response with the `200` status
  - added the optional property `recalledNote/ancestorFolders/items/readmeContent` to the response with the `200` status
- **2026-06-07** `ed2e37d5f029` — 1 warning, 1 info
  - removed the optional property `ancestorFolders` from the response with the `200` status
  - added the optional property `recalledNote` to the response with the `200` status
- **2026-06-06** `6691bbdc0bad` — 1 info
  - endpoint added
- **2026-05-11** `d7c2946139e9` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/changes/api/memory-trackers/:memoryTracker/property-key/patch.md)

---

[API](https://skmtc.dev/nerds-odd-e/apis/openapi-definition.md) · [All operations](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/nerds-odd-e/openapi-definition/revisions/0779e2376668/schema)