v49

latestOpenAPI 3.1.0raw.githubusercontent.com2026-07-261319281.7 MB

Update a memory store

post/v1/memory_stores/{memory_store_id}?beta=true

Path parameters

memory_store_idstring required

Path parameter memory_store_id

Headers

anthropic-versionstring

anthropic-betastring

Request body

namestring nullable

New human-readable name for the store. 1–255 characters; no control characters. Renaming changes the slug used for the store's mount_path in sessions created after the update.

descriptionstring nullable

New description for the store, up to 1024 characters. Pass an empty string to clear it.

metadataobject nullable

Metadata patch. Set a key to a string to upsert it, or to null to delete it. Omit the field to preserve. The stored bag is limited to 16 keys (up to 64 chars each) with values up to 512 chars.

Response

Successful response (OK)

type'memory_store' required

idstring required

Unique identifier for the memory store (a memstore_... tagged ID). Use this when attaching the store to a session, or in the {memory_store_id} path parameter of subsequent calls.

namestring required

Human-readable name for the store. 1–255 characters. The store's mount-path slug under /mnt/memory/ is derived from this name.

descriptionstring

Free-text description of what the store contains, up to 1024 characters. Included in the agent's system prompt when the store is attached, so word it to be useful to the agent. Empty string when unset.

created_atstring date-time required

A timestamp in RFC 3339 format

updated_atstring date-time required

A timestamp in RFC 3339 format

metadataobject

Arbitrary key-value tags for your own bookkeeping (such as the end user a store belongs to). Up to 16 pairs; keys 1–64 characters; values up to 512 characters. Returned on retrieve/list but not filterable.

archived_atstring date-time

A timestamp in RFC 3339 format