List Memory Versions

GET /anthropic/v1/memory_stores/{memory_store_id}/memory_versions○ Unsupported

Request parameters

memory_store_idstring必填
path: Memory store ID (path or query parameter).
api_key_idstring可选
query: Return only versions written with this API key.
created_at[gte]string可选
query: Return records created at or after this time.
created_at[lte]string可选
query: Return records created at or before this time.
memory_idstring可选
query: Memory ID (path or query parameter).
operationstring可选
query: Return only versions that record this kind of change.
service_account_idstring可选
query: Return only versions written by this service account.
session_idstring可选
query: Session ID (path or query parameter).
viewstring可选
query: Which projection to return: basic omits content, full includes it.
limitnumber可选
query: Maximum number of items per page.
▸ 更多参数（1）
- pagestring可选
  query: Pagination cursor taken from the previous response's next_page.

Returns

501 This endpoint is not implemented yet; calling it returns the response below:

The platform does not provide a persistent memory store that agents can read and write yet. Calling it returns 501 (not_implemented_error), produces no side effects, and the official SDK does not retry.

Errors follow the Claude Managed Agents format — see error codes

Response

HTTP 200

Successful response

application/json

Name	Type	Description
data	array<object>
data[].id	string	Unique identifier for this version (a `memver_...` value).
data[].created_at	string	A timestamp in RFC 3339 format
data[].memory_id	string	ID of the memory this version snapshots (a `mem_...` value). Remains valid after the memory is deleted; pass it as `memory_id` to List memory versions to retrieve the memory's retained versions, including the `deleted` row while the lineage is retained.
data[].memory_store_id	string	ID of the memory store this version belongs to (a `memstore_...` value).
data[].operation	string	The kind of mutation a `memory_version` records. Every non-no-op mutation to a memory appends exactly one version row with one of these values.
data[].type	string
data[].content	null \| string	The memory's UTF-8 text content as of this version. `null` when `view=basic`, when `operation` is `deleted`, or when `redacted_at` is set.
data[].content_sha256	null \| string	Lowercase hex SHA-256 digest of `content` as of this version (64 characters). `null` when `redacted_at` is set or `operation` is `deleted`. Populated regardless of `view` otherwise.
data[].content_size_bytes	null \| number	Size of `content` in bytes as of this version. `null` when `redacted_at` is set or `operation` is `deleted`. Populated regardless of `view` otherwise.
data[].created_by	object	Identifies who performed a write or redact operation. Captured at write time on the `memory_version` row. The API key that created a session is not recorded on agent writes; attribution answers who made the write, not who is ultimately responsible. Look up session provenance separately via the Sessions API.
data[].path	null \| string	The memory's path at the time of this write. `null` if and only if `redacted_at` is set.
data[].redacted_at	null \| string	A timestamp in RFC 3339 format
data[].redacted_by	object	Identifies who performed a write or redact operation. Captured at write time on the `memory_version` row. The API key that created a session is not recorded on agent writes; attribution answers who made the write, not who is ultimately responsible. Look up session provenance separately via the Sessions API.
next_page	string \| null