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Memories

Create a memory

post /v1/memory_stores/{memory_store_id}/memories

Create a memory

Path Parameters

  • memory_store_id: string

Query Parameters

  • view: optional BetaManagedAgentsMemoryView

    Query parameter for view

    • "basic"

    • "full"

Header Parameters

  • "anthropic-beta": optional array of AnthropicBeta

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

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Body Parameters

  • content: string

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

  • path: string

    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.

Returns

  • BetaManagedAgentsMemory 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.

    • created_at: string

      A timestamp in RFC 3339 format

    • 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 full 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"

      • "memory"

    • updated_at: string

      A timestamp in RFC 3339 format

    • content: optional string

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

Example

curl https://api.anthropic.com/v1/memory_stores/$MEMORY_STORE_ID/memories \
    -H 'Content-Type: application/json' \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY" \
    -d '{
          "content": "content",
          "path": "xx"
        }'

Response

{
  "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"
}

List memories

get /v1/memory_stores/{memory_store_id}/memories

List memories

Path Parameters

  • memory_store_id: string

Query Parameters

  • depth: optional number

    Query parameter for depth

  • limit: optional number

    Query parameter for limit

  • order: optional "asc" or "desc"

    Query parameter for order

    • "asc"

    • "desc"

  • order_by: optional string

    Query parameter for order_by

  • page: optional string

    Query parameter for page

  • path_prefix: optional string

    Optional path prefix filter (raw string-prefix match; include a trailing slash for directory-scoped lists). This value appears in request URLs. Do not include secrets or personally identifiable information.

  • view: optional BetaManagedAgentsMemoryView

    Query parameter for view

    • "basic"

    • "full"

Header Parameters

  • "anthropic-beta": optional array of AnthropicBeta

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

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns

  • data: optional array of BetaManagedAgentsMemoryListItem

    One page of results. Each item is either a memory object or, when depth was set, a memory_prefix rollup marker. Items appear in the requested order_by/order.

    • BetaManagedAgentsMemory 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.

      • created_at: string

        A timestamp in RFC 3339 format

      • 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 full 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"

        • "memory"

      • updated_at: string

        A timestamp in RFC 3339 format

      • content: optional string

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

    • BetaManagedAgentsMemoryPrefix object { path, type }

      A rolled-up directory marker returned by List memories when depth is set. Indicates that one or more memories exist deeper than the requested depth under this prefix. This is a list-time rollup, not a stored resource; it has no ID and no lifecycle. Each prefix counts toward the page limit and interleaves with memory items in path order.

      • path: string

        The rolled-up path prefix, including a trailing / (e.g. /projects/foo/). Pass this value as path_prefix on a subsequent list call to drill into the directory.

      • type: "memory_prefix"

        • "memory_prefix"

  • 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.

Example

curl https://api.anthropic.com/v1/memory_stores/$MEMORY_STORE_ID/memories \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response

{
  "data": [
    {
      "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"
    }
  ],
  "next_page": "next_page"
}

Retrieve a memory

get /v1/memory_stores/{memory_store_id}/memories/{memory_id}

Retrieve a memory

Path Parameters

  • memory_store_id: string

  • memory_id: string

Query Parameters

  • view: optional BetaManagedAgentsMemoryView

    Query parameter for view

    • "basic"

    • "full"

Header Parameters

  • "anthropic-beta": optional array of AnthropicBeta

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

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns

  • BetaManagedAgentsMemory 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.

    • created_at: string

      A timestamp in RFC 3339 format

    • 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 full 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"

      • "memory"

    • updated_at: string

      A timestamp in RFC 3339 format

    • content: optional string

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

Example

curl https://api.anthropic.com/v1/memory_stores/$MEMORY_STORE_ID/memories/$MEMORY_ID \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response

{
  "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"
}

Update a memory

post /v1/memory_stores/{memory_store_id}/memories/{memory_id}

Update a memory

Path Parameters

  • memory_store_id: string

  • memory_id: string

Query Parameters

  • view: optional BetaManagedAgentsMemoryView

    Query parameter for view

    • "basic"

    • "full"

Header Parameters

  • "anthropic-beta": optional array of AnthropicBeta

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

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Body Parameters

  • content: optional string

    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: optional string

    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, and must be NFC-normalized. Paths are case-sensitive. The memory's id is preserved across renames. Omit to leave the path unchanged.

  • precondition: optional BetaManagedAgentsPrecondition

    Optimistic-concurrency precondition: the update applies only if the memory's stored content_sha256 equals the supplied value. On mismatch, the request returns memory_precondition_failed_error (HTTP 409); re-read the memory and retry against the fresh state. If the precondition fails but the stored state already exactly matches the requested content and path, the server returns 200 instead of 409.

    • type: "content_sha256"

      • "content_sha256"

    • content_sha256: optional string

      Expected content_sha256 of the stored memory (64 lowercase hexadecimal characters). Typically the content_sha256 returned by a prior read or list call. Because the server applies no content normalization, clients can also compute this locally as the SHA-256 of the UTF-8 content bytes.

Returns

  • BetaManagedAgentsMemory 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.

    • created_at: string

      A timestamp in RFC 3339 format

    • 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 full 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"

      • "memory"

    • updated_at: string

      A timestamp in RFC 3339 format

    • content: optional string

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

Example

curl https://api.anthropic.com/v1/memory_stores/$MEMORY_STORE_ID/memories/$MEMORY_ID \
    -H 'Content-Type: application/json' \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY" \
    -d '{}'

Response

{
  "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"
}

Delete a memory

delete /v1/memory_stores/{memory_store_id}/memories/{memory_id}

Delete a memory

Path Parameters

  • memory_store_id: string

  • memory_id: string

Query Parameters

  • expected_content_sha256: optional string

    Query parameter for expected_content_sha256

Header Parameters

  • "anthropic-beta": optional array of AnthropicBeta

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

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns

  • BetaManagedAgentsDeletedMemory object { id, type }

    Tombstone returned by Delete a memory. The memory's version history persists and remains listable via List memory versions until the store itself is deleted.

    • id: string

      ID of the deleted memory (a mem_... value).

    • type: "memory_deleted"

      • "memory_deleted"

Example

curl https://api.anthropic.com/v1/memory_stores/$MEMORY_STORE_ID/memories/$MEMORY_ID \
    -X DELETE \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response

{
  "id": "id",
  "type": "memory_deleted"
}

Domain Types

Beta Managed Agents Conflict Error

  • BetaManagedAgentsConflictError object { type, message }

    • type: "conflict_error"

      • "conflict_error"

    • message: optional string

Beta Managed Agents Content Sha256 Precondition

  • BetaManagedAgentsContentSha256Precondition object { type, content_sha256 }

    Optimistic-concurrency precondition: the update applies only if the memory's stored content_sha256 equals the supplied value. On mismatch, the request returns memory_precondition_failed_error (HTTP 409); re-read the memory and retry against the fresh state. If the precondition fails but the stored state already exactly matches the requested content and path, the server returns 200 instead of 409.

    • type: "content_sha256"

      • "content_sha256"

    • content_sha256: optional string

      Expected content_sha256 of the stored memory (64 lowercase hexadecimal characters). Typically the content_sha256 returned by a prior read or list call. Because the server applies no content normalization, clients can also compute this locally as the SHA-256 of the UTF-8 content bytes.

Beta Managed Agents Deleted Memory

  • BetaManagedAgentsDeletedMemory object { id, type }

    Tombstone returned by Delete a memory. The memory's version history persists and remains listable via List memory versions until the store itself is deleted.

    • id: string

      ID of the deleted memory (a mem_... value).

    • type: "memory_deleted"

      • "memory_deleted"

Beta Managed Agents Error

  • BetaManagedAgentsError = BetaInvalidRequestError or BetaAuthenticationError or BetaBillingError or 9 more

    • BetaInvalidRequestError object { message, type }

      • message: string

      • type: "invalid_request_error"

        • "invalid_request_error"

    • BetaAuthenticationError object { message, type }

      • message: string

      • type: "authentication_error"

        • "authentication_error"

    • BetaBillingError object { message, type }

      • message: string

      • type: "billing_error"

        • "billing_error"

    • BetaPermissionError object { message, type }

      • message: string

      • type: "permission_error"

        • "permission_error"

    • BetaNotFoundError object { message, type }

      • message: string

      • type: "not_found_error"

        • "not_found_error"

    • BetaRateLimitError object { message, type }

      • message: string

      • type: "rate_limit_error"

        • "rate_limit_error"

    • BetaGatewayTimeoutError object { message, type }

      • message: string

      • type: "timeout_error"

        • "timeout_error"

    • BetaAPIError object { message, type }

      • message: string

      • type: "api_error"

        • "api_error"

    • BetaOverloadedError object { message, type }

      • message: string

      • type: "overloaded_error"

        • "overloaded_error"

    • BetaManagedAgentsMemoryPreconditionFailedError object { type, message }

      • type: "memory_precondition_failed_error"

        • "memory_precondition_failed_error"

      • message: optional string

    • BetaManagedAgentsMemoryPathConflictError object { type, conflicting_memory_id, conflicting_path, message }

      • type: "memory_path_conflict_error"

        • "memory_path_conflict_error"

      • conflicting_memory_id: optional string

      • conflicting_path: optional string

      • message: optional string

    • BetaManagedAgentsConflictError object { type, message }

      • type: "conflict_error"

        • "conflict_error"

      • message: optional string

Beta Managed Agents Memory

  • BetaManagedAgentsMemory 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.

    • created_at: string

      A timestamp in RFC 3339 format

    • 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 full 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"

      • "memory"

    • updated_at: string

      A timestamp in RFC 3339 format

    • content: optional string

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

Beta Managed Agents Memory List Item

  • BetaManagedAgentsMemoryListItem = BetaManagedAgentsMemory or BetaManagedAgentsMemoryPrefix

    One item in a List memories response: either a memory object or, when depth is set, a memory_prefix rollup marker.

    • BetaManagedAgentsMemory 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.

      • created_at: string

        A timestamp in RFC 3339 format

      • 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 full 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"

        • "memory"

      • updated_at: string

        A timestamp in RFC 3339 format

      • content: optional string

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

    • BetaManagedAgentsMemoryPrefix object { path, type }

      A rolled-up directory marker returned by List memories when depth is set. Indicates that one or more memories exist deeper than the requested depth under this prefix. This is a list-time rollup, not a stored resource; it has no ID and no lifecycle. Each prefix counts toward the page limit and interleaves with memory items in path order.

      • path: string

        The rolled-up path prefix, including a trailing / (e.g. /projects/foo/). Pass this value as path_prefix on a subsequent list call to drill into the directory.

      • type: "memory_prefix"

        • "memory_prefix"

Beta Managed Agents Memory Path Conflict Error

  • BetaManagedAgentsMemoryPathConflictError object { type, conflicting_memory_id, conflicting_path, message }

    • type: "memory_path_conflict_error"

      • "memory_path_conflict_error"

    • conflicting_memory_id: optional string

    • conflicting_path: optional string

    • message: optional string

Beta Managed Agents Memory Precondition Failed Error

  • BetaManagedAgentsMemoryPreconditionFailedError object { type, message }

    • type: "memory_precondition_failed_error"

      • "memory_precondition_failed_error"

    • message: optional string

Beta Managed Agents Memory Prefix

  • BetaManagedAgentsMemoryPrefix object { path, type }

    A rolled-up directory marker returned by List memories when depth is set. Indicates that one or more memories exist deeper than the requested depth under this prefix. This is a list-time rollup, not a stored resource; it has no ID and no lifecycle. Each prefix counts toward the page limit and interleaves with memory items in path order.

    • path: string

      The rolled-up path prefix, including a trailing / (e.g. /projects/foo/). Pass this value as path_prefix on a subsequent list call to drill into the directory.

    • type: "memory_prefix"

      • "memory_prefix"

Beta Managed Agents Memory View

  • BetaManagedAgentsMemoryView = "basic" or "full"

    Selects which projection of a memory or memory_version the server returns. basic returns the object with content set to null; full populates content. When omitted, the default is endpoint-specific: retrieve operations default to full; list, create, and update operations default to basic. Listing with view=full caps limit at 20.

    • "basic"

    • "full"

Beta Managed Agents Precondition

  • BetaManagedAgentsPrecondition object { type, content_sha256 }

    Optimistic-concurrency precondition: the update applies only if the memory's stored content_sha256 equals the supplied value. On mismatch, the request returns memory_precondition_failed_error (HTTP 409); re-read the memory and retry against the fresh state. If the precondition fails but the stored state already exactly matches the requested content and path, the server returns 200 instead of 409.

    • type: "content_sha256"

      • "content_sha256"

    • content_sha256: optional string

      Expected content_sha256 of the stored memory (64 lowercase hexadecimal characters). Typically the content_sha256 returned by a prior read or list call. Because the server applies no content normalization, clients can also compute this locally as the SHA-256 of the UTF-8 content bytes.