Claude Platform Docs

Create a memory

$ ant beta:memory-stores:memories create
POST/v1/memory_stores/{memory_store_id}/memories

Create a memory

Parameters
--memory-store-id: string

Path param: Path parameter memory_store_id

--content: string

Body param: UTF-8 text content for the new memory. Maximum 100 kB (102,400 bytes). Required; pass "" explicitly to create an empty memory.

--path: string

Body param: Hierarchical path for the new memory, e.g. /projects/foo/notes.md. 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, and must be NFC-normalized. Paths are case-sensitive.

minLength2
maxLength1024
--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.

Returns
beta_managed_agents_memory: object{ id, content_sha256, content_size_bytes, 7 more }

A memory object: a single text document at a hierarchical path inside a memory store. The content field is populated when view=full and null when view=basic; the content_size_bytes and content_sha256 fields are always populated so sync clients can diff without fetching content. Memories are addressed by their mem_... ID; the path is the create key and can be changed via update.

id: string

Unique identifier for this memory (a mem_... value). Stable across renames; use this ID, not the path, to read, update, or delete the memory.

content_sha256: string

Lowercase hex SHA-256 digest of the UTF-8 content bytes (64 characters). The server applies no normalization, so clients can compute the same hash locally for staleness checks and as the value for a content_sha256 precondition on update. Always populated, regardless of view.

content_size_bytes: number

Size of content in bytes (the UTF-8 plaintext length). Always populated, regardless of view.

formatint32
created_at: string

A timestamp in RFC 3339 format

formatdate-time
memory_store_id: string

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

memory_version_id: string

ID of the memory_version representing this memory's current content (a memver_... value). This is the authoritative head pointer; memory_version objects do not carry an is_latest flag, so compare against this field instead. Enumerate the history via List memory versions.

path: string

Hierarchical path of the memory within the store, e.g. /projects/foo/notes.md. Always starts with /. Paths are case-sensitive and unique within a store. Maximum 1,024 bytes.

type: "memory"
updated_at: string

A timestamp in RFC 3339 format

formatdate-time
content: optional string

The memory's UTF-8 text content. Populated when view=full; null when view=basic. Maximum 100 kB (102,400 bytes).

Create a memory

ant beta:memory-stores:memories create \
  --api-key my-anthropic-api-key \
  --memory-store-id memory_store_id \
  --content content \
  --path xx
{
  "id": "id",
  "content_sha256": "content_sha256",
  "content_size_bytes": 0,
  "created_at": "2019-12-27T18:11:19.117Z",
  "memory_store_id": "memory_store_id",
  "memory_version_id": "memory_version_id",
  "path": "path",
  "type": "memory",
  "updated_at": "2019-12-27T18:11:19.117Z",
  "content": "content"
}
Returns Examples
{
  "id": "id",
  "content_sha256": "content_sha256",
  "content_size_bytes": 0,
  "created_at": "2019-12-27T18:11:19.117Z",
  "memory_store_id": "memory_store_id",
  "memory_version_id": "memory_version_id",
  "path": "path",
  "type": "memory",
  "updated_at": "2019-12-27T18:11:19.117Z",
  "content": "content"
}