Claude Platform Docs

List memory versions

$ ant beta:memory-stores:memory-versions list
GET/v1/memory_stores/{memory_store_id}/memory_versions

List memory versions

Parameters
--memory-store-id: string

Path param: Path parameter memory_store_id

--api-key-id: optional string

Query param: Query parameter for api_key_id

--created-at-gte: optional string

Query param: Return versions created at or after this time (inclusive).

formatdate-time
--created-at-lte: optional string

Query param: Return versions created at or before this time (inclusive).

formatdate-time
--limit: optional number

Query param: Query parameter for limit

formatint32
--memory-id: optional string

Query param: Query parameter for memory_id

--operation: optional "created" or "modified" or "deleted"

Query param: Query parameter for operation

--page: optional string

Query param: Query parameter for page

--service-account-id: optional string

Query param: Query parameter for service_account_id

--session-id: optional string

Query param: Query parameter for session_id

--view: optional "basic" or "full"

Query param: Query parameter for view

--beta: optional array of AnthropicBeta

Header param: Optional header to specify the beta version(s) you want to use.

--workspace-id: optional string

Header param: Optional header to select the Workspace for this request. The value is a Workspace ID (for example, wrkspc_011CZkZaBF1tNoB5wlCeusgy).

Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.

Returns
BetaManagedAgentsListMemoryVersionsResult: object{ data, next_page }

Response payload for List memory versions.

data: optional array of BetaManagedAgentsMemoryVersion { type, id, created_at, 10 more }

One page of memory_version objects, ordered by created_at descending (newest first), with id as tiebreak.

type: "memory_version"
id: string

Unique identifier for this version (a memver_... value).

created_at: string

A timestamp in RFC 3339 format

formatdate-time
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.

memory_store_id: string

ID of the memory store this version belongs to (a memstore_... value).

operation: "created" or "modified" or "deleted"

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.

One of the following:
"created"
"modified"
"deleted"
content: optional 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.

content_sha256: optional 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.

content_size_bytes: optional 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.

formatint32
created_by: optional BetaManagedAgentsSessionActor { type, session_id } or BetaManagedAgentsAPIActor { type, api_key_id } or BetaManagedAgentsUserActor { type, user_id } or BetaManagedAgentsServiceAccountActor { type, service_account_id }

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.

One of the following:
beta_managed_agents_session_actor: object{ type, session_id }

Attribution for a write made by an agent during a session, through the mounted filesystem at /mnt/memory/.

type: "session_actor"
session_id: string

ID of the session that performed the write (a sesn_... value). Look up the session via Retrieve a session for further provenance.

minLength1
beta_managed_agents_api_actor: object{ type, api_key_id }

Attribution for a write made directly via the public API (outside of any session).

type: "api_actor"
api_key_id: string

ID of the API key that performed the write. This identifies the key, not the secret.

minLength1
beta_managed_agents_user_actor: object{ type, user_id }

Attribution for a write made by a human user through the Anthropic Console.

type: "user_actor"
user_id: string

ID of the user who performed the write (a user_... value).

minLength1
beta_managed_agents_service_account_actor: object{ type, service_account_id }

Attribution for a write made by a workload authenticated as a service account, for example via Workload Identity Federation.

type: "service_account_actor"
service_account_id: string

ID of the service account that performed the write (a svac_... value).

minLength1
path: optional string

The memory's path at the time of this write. null if and only if redacted_at is set.

redacted_at: optional string

A timestamp in RFC 3339 format

formatdate-time
redacted_by: optional BetaManagedAgentsSessionActor { type, session_id } or BetaManagedAgentsAPIActor { type, api_key_id } or BetaManagedAgentsUserActor { type, user_id } or BetaManagedAgentsServiceAccountActor { type, service_account_id }

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.

One of the following:
beta_managed_agents_session_actor: object{ type, session_id }

Attribution for a write made by an agent during a session, through the mounted filesystem at /mnt/memory/.

type: "session_actor"
session_id: string

ID of the session that performed the write (a sesn_... value). Look up the session via Retrieve a session for further provenance.

minLength1
beta_managed_agents_api_actor: object{ type, api_key_id }

Attribution for a write made directly via the public API (outside of any session).

type: "api_actor"
api_key_id: string

ID of the API key that performed the write. This identifies the key, not the secret.

minLength1
beta_managed_agents_user_actor: object{ type, user_id }

Attribution for a write made by a human user through the Anthropic Console.

type: "user_actor"
user_id: string

ID of the user who performed the write (a user_... value).

minLength1
beta_managed_agents_service_account_actor: object{ type, service_account_id }

Attribution for a write made by a workload authenticated as a service account, for example via Workload Identity Federation.

type: "service_account_actor"
service_account_id: string

ID of the service account that performed the write (a svac_... value).

minLength1
next_page: optional string

Opaque cursor for the next page (a page_... value), or null if there are no more results. Pass as page on the next request.

List memory versions
ant beta:memory-stores:memory-versions list \
  --api-key my-anthropic-api-key \
  --memory-store-id memory_store_id
Returns Examples
Response 200
{
  "data": [
    {
      "id": "id",
      "created_at": "2019-12-27T18:11:19.117Z",
      "memory_id": "memory_id",
      "memory_store_id": "memory_store_id",
      "operation": "created",
      "type": "memory_version",
      "content": "content",
      "content_sha256": "content_sha256",
      "content_size_bytes": 0,
      "created_by": {
        "session_id": "x",
        "type": "session_actor"
      },
      "path": "path",
      "redacted_at": "2019-12-27T18:11:19.117Z",
      "redacted_by": {
        "session_id": "x",
        "type": "session_actor"
      }
    }
  ],
  "next_page": "next_page"
}