curl -X POST 'https://api.anthropic.com/v1/memory_stores/memory-store-id/memories/memory-id?beta=true&view=basic' \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -H 'anthropic-version: 2023-06-01' \
  -H 'Content-Type: application/json' \
  -d '{}'

# POST /v1/memory_stores/{memory_store_id}/memories/{memory_id}?beta=true (Claude API)
Base URL: https://api.anthropic.com
Auth: x-api-key; Anthropic API key; required.
Status: Beta.
Request formats: application/json.
Last verified: 2026-10-20

> Update a memory

## Critical Gotchas
* Authentication uses the `x-api-key` header and requests also require an `anthropic-version` header.
* The official OpenAPI URL is discovered from the SDK repository manifest and must remain under Anthropic's trusted Stainless storage prefix.

## cURL
curl -X POST 'https://api.anthropic.com/v1/memory_stores/memory-store-id/memories/memory-id?beta=true&view=basic' \
  -H "x-api-key: $ANTHROPIC_API_KEY" \
  -H 'anthropic-version: 2023-06-01' \
  -H 'Content-Type: application/json' \
  -d '{}'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| memory_store_id | path | string | Yes | Path parameter memory_store_id |
| memory_id | path | string | Yes | Path parameter memory_id |
| view | query | string | No | Query parameter for view |
| content | body | string | No | New UTF-8 text content for the memory. Maximum 100 kB (102,400 bytes). Omit t... |
| path | body | string | No | New path for the memory (a rename). Must start with `/`, contain at least one... |
| precondition | body | object | No | Optional optimistic-concurrency precondition. When supplied, the update appli... |

## Response example
{"type":"memory","id":"string"}

---
Need an API key? Get one at https://console.anthropic.com/settings/keys

POST

POST /v1/memory_stores/{memory_store_id}/memories/{memory_id}?beta=true — Claude API

Beta

Anthropic API key (required); https://api.anthropic.com

Claude API

Update a memory

Base URL: https://api.anthropic.com
Auth: x-api-key: <ANTHROPIC_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

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→ 297 tokens · Vary: Accept

Critical gotchas

Authentication uses the x-api-key header and requests also require an anthropic-version header.

The official OpenAPI URL is discovered from the SDK repository manifest and must remain under Anthropic's trusted Stainless storage prefix.

cURL

curl -X POST 'https://api.anthropic.com/v1/memory_stores/memory-store-id/memories/memory-id?beta=true&view=basic' \  -H "x-api-key: $ANTHROPIC_API_KEY" \  -H 'anthropic-version: 2023-06-01' \  -H 'Content-Type: application/json' \  -d '{}'

Parameters

Name	In	Type	Required	Description
memory_store_id	path	string	Yes	Path parameter memory_store_id
memory_id	path	string	Yes	Path parameter memory_id
view	query	string	No	Query parameter for view
content	body	string	No	New UTF-8 text content for the memory. Maximum 100 kB (102,400 bytes). Omit to leave the content unchanged (e.g., for a rename-only update).
path	body	string	No	New path for the memory (a rename). Must start with `/`, contain at least one non-empty segment, and be at most 1,024 bytes. Must not contain empty segments, `.` or `..` segments, control or format characters, or the Unicode line and paragraph separators (U+2028, U+2029), and must be NFC-normalized. Paths are case-sensitive. The memory's `id` is preserved across renames. Omit to leave the path unchanged.
precondition	body	object	No	Optional optimistic-concurrency precondition. When supplied, the update applies only if the memory's current state matches; on mismatch the request returns `memory_precondition_failed_error` (HTTP 409). When omitted, the update is unconditional.

Response 200 OK

{
  "type": "memory",
  "id": "string",
  "memory_store_id": "string",
  "path": "string",
  "content": "string",
  "content_size_bytes": 0,
  "content_sha256": "string",
  "memory_version_id": "string",
  "created_at": "2026-09-03T00:00:00Z",
  "updated_at": "2026-09-03T00:00:00Z"
}

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