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PATCH
/
v2
/
notes
/
{note_id}
/
created-at
cURL
curl "https://api.mem.ai/v2/notes/01961d40-7a67-7049-a8a6-d5638cbaaeb9/created-at" \
     --header "Content-Type: application/json" \
     --header "Authorization: Bearer $MEM_API_KEY" \
     --request PATCH \
     --data '{
         "created_at": "2020-01-07T00:00:00Z"
     }'
{
  "collection_ids": [
    "59508b41-8770-4855-aa37-302b1e09aee7"
  ],
  "content": "# Meeting with Bill\n\nJan 7, 2020",
  "created_at": "2020-01-07T00:00:00.000Z",
  "id": "5e29c8a2-c73b-476b-9311-e2579712d4b1",
  "request_id": "api-request-036ed6c7-de00-459f-a89b-43d26aafe522",
  "title": "Meeting with Bill",
  "trashed_at": null,
  "updated_at": "2026-05-15T10:15:00.000Z",
  "version": 5
}

Documentation Index

Fetch the complete documentation index at: https://docs.mem.ai/llms.txt

Use this file to discover all available pages before exploring further.

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

​
note_id
string<uuid>
required

UUID of the note whose visible creation timestamp should change. The caller must own this note.

Body

application/json
​
created_at
string<date-time>
required

New visible creation timestamp for the note (ISO 8601). It must include a timezone offset and cannot be in the future. It can only backdate the note: the timestamp cannot be later than when the note was originally created. This changes note metadata only; it does not update note content.

Examples:

"2020-01-07T00:00:00Z"

"2020-01-07T09:00:00+01:00"

Response

200 - application/json

OK

​
request_id
string
required

Identifier for this API request. Useful for tracing and support.

​
id
string<uuid>
required

UUID of the updated note.

​
title
string
required

Current note title.

​
content
string
required

Full markdown content stored for the note.

​
version
integer
required

Current note content document version.

​
collection_ids
string<uuid>[]
required

Collection UUIDs currently associated with this note.

​
trashed_at
string<date-time> | null
required

Timestamp for when the note was moved to trash, or null when the note is active.

​
created_at
string<date-time>
required

Creation timestamp for the note in ISO 8601 format after the metadata update.

​
updated_at
string<date-time>
required

Last modification timestamp after the metadata update in ISO 8601 format.