---
title: "Forget a memory"
method: DELETE
path: "/v4/memories"
tags: ["Content Management"]
---

# Forget a memory

`DELETE /v4/memories`

Forget (soft delete) a memory entry. The memory is marked as forgotten but not permanently deleted.

## Request body

- object
  - `id` string — ID of the memory entry to operate on
  - `content` string — Exact content match of the memory entry to operate on. Use this when you don't have the ID.
  - `containerTag` string, required — Container tag / space identifier. Required to scope the operation.
  - `reason` string — Optional reason for forgetting this memory

## Response `200`

Memory forgotten successfully

- object — Response after forgetting a memory
  - `id` string, required — ID of the memory that was forgotten
  - `forgotten` boolean, required — Indicates the memory was successfully forgotten

## Other responses

- `400` — Invalid request - missing id or content
- `401` — Unauthorized
- `404` — Memory not found
- `409` — Memory already forgotten
- `500` — Server error

## Changes

- **2026-04-07** `b5edd97adf4a` — 2 info
  - api tag `Content Management` added
  - api tag `Memories` removed
- **2026-03-15** `b40318167017` — 1 breaking
  - request body became required
- **2026-03-12** `7386f0fb8043` — 1 warning
  - changed the pattern of the request property `allOf[subschema #1]/containerTag` from `^[a-zA-Z0-9_-]+$` to `^[a-zA-Z0-9_:-]+$`
- **2026-03-09** `8d6903994bad` — 1 breaking, 1 warning
  - added the pattern `^[a-zA-Z0-9_-]+$` to the request property `allOf[subschema #1]/containerTag`
  - the `allOf[subschema #1]/containerTag` request property's maxLength was set to `100`

[Change history](https://skmtc.dev/supermemoryai/apis/supermemory-api/changes/v4/memories/delete.md)

---

[API](https://skmtc.dev/supermemoryai/apis/supermemory-api.md) · [All operations](https://skmtc.dev/supermemoryai/apis/supermemory-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/supermemoryai/supermemory-api/revisions/f979eba02e97/schema)