# title: Sessions url: https://platform.claude.com/docs/en/api/compliance/apps/sessions

# Sessions

# Sessions › Local

# List local sessions

GET /v1/compliance/apps/sessions/local

List local sessions across the organizations the key may read.

Results are ordered by created_at descending. Pagination is forward-only via next_page; there is no reverse cursor.

# Query parameters

created_at: optional object
- gte: optional string
  
  Only return sessions whose first inference call is at or after this time (RFC 3339; a UTC offset is required).
  
  format: date-time
- lt: optional string
  
  Only return sessions whose first inference call is strictly before this time (RFC 3339; a UTC offset is required).
  
  format: date-time
limit: optional number

Maximum results (default: 100, max: 500)

default: 100, maximum: 500, minimum: 1
page: optional string

Opaque pagination token from a previous response's next_page field. Pass this to retrieve the next page of results. Clients should treat this value as an opaque string and not attempt to parse or interpret its contents, as the format may change without notice.
updated_at: optional object
- gte: optional string
  
  Only return sessions whose last inference call is at or after this time (RFC 3339; a UTC offset is required). Combines with created_at.gte / created_at.lt; the ordering and pagination are unchanged. Use it to poll for sessions that have been active since a previous pass — a session that becomes active later can only enter the result, never leave it.
  
  format: date-time

# Headers

"x-api-key": optional string

# Returns

data: array of object

Page of local sessions, ordered by created_at descending; ties are broken by a fixed server-side order. updated_at never participates in the ordering; the updated_at.gte query parameter filters on it without changing the order or the pagination cursor.
- type: "compliance_local_session"
  
  default: compliance_local_session
- id: string
  
  Local session identifier, prefixed clls_. Unique within the parent organization. Treat as an opaque string; the format may change without notice.
- created_at: string
  
  Timestamp of the session's first retained inference call (RFC 3339, UTC). When a session's activity spans the child organization's retention boundary, calls older than the boundary are no longer reflected, so this value is the timestamp of the earliest retained call: always strictly after the boundary, never the boundary itself.
  
  format: date-time
- organization_uuid: string
  
  UUID of the child organization the session belongs to
- product_surface: string or null
  
  The product the session ran in: cowork (Cowork in Claude Desktop on the user's machine), claude_code (Claude Code), claude_science (Claude Science), or one of office_agents/excel, office_agents/powerpoint, office_agents/word, and office_agents/outlook (Claude for Microsoft 365, by app; office_agents alone when the app is not identified). New values appear as coverage expands; treat unrecognized values as opaque. null when the surface was not recorded.
- truncated: boolean
  
  True when the session has more inference calls than the service can return for one session (100,000). The messages endpoint then returns only the session's earliest calls, up to that many, and ends before the session does; updated_at is a lower bound on the latest call and can differ between the list and retrieve endpoints. False for every session within that bound.
  
  default: false
- updated_at: string
  
  Timestamp of the session's last retained inference call (RFC 3339, UTC). Always at or after created_at. When a session's activity spans the child organization's retention boundary, calls older than the boundary are no longer reflected — but because retention removes only the oldest calls, this value (unlike created_at) is unaffected until the entire session has aged out. On the list endpoint this value is a lower bound: for a session still active at a page or created_at.lt window boundary it can momentarily lag the session's true last activity. Retrieving the session, or its messages, always reflects the exact latest retained call.
  
  format: date-time
- user: object
  
  The authenticated user at the time of the session. Always set; user.id is always populated. user.email_address is null when the user's account has been deleted or the user is no longer a member of an organization the key may read.
  - id: string
    
    User identifier (tagged ID, prefixed user_). Always set, so attribution survives after the user's account is deleted or the user leaves the organizations the key may read.
  - email_address: string or null
    
    User's email address. Null when the user's account has been deleted or the user is no longer a member of an organization the key may read. The messages endpoint does not resolve email addresses; this field is always null there.
- workspace_id: string or null
  
  Workspace identifier (tagged ID, prefixed wrkspc_). Null for sessions not attributed to a workspace.
next_page: string or null

Opaque pagination cursor (prefixed page_) for the next page. Null when there is no further page. Treat as an opaque string; the format may change without notice.

# Example

bash

curl https://api.anthropic.com/v1/compliance/apps/sessions/local \
    -H 'anthropic-version: 2023-06-01' \
    -H "Authorization: Bearer $ANTHROPIC_COMPLIANCE_API_KEY"

# Response (200)

json

{
  "data": [
    {
      "type": "compliance_local_session",
      "id": "clls_eyJ2IjoxLCJvIjoiOWEx…",
      "organization_uuid": "9a1e0000-0000-0000-0000-000000000000",
      "workspace_id": "wrkspc_01SvYKoWVRVHoEbwESNvzYdR",
      "user": {
        "id": "user_01GpKpLmNoPqRsTuVwXyZaBc",
        "email_address": "engineer@example.com"
      },
      "product_surface": "cowork",
      "created_at": "2026-07-09T14:02:11Z",
      "updated_at": "2026-07-09T15:47:33Z"
    }
  ]
}

# Retrieve a local session

GET /v1/compliance/apps/sessions/local/{local_session_id}

Retrieve one local session.

The response is the same session object the list endpoint returns, with user.email_address resolved the same way. Retention is enforced when the response is served: a session whose every inference call has aged out returns 404.

# Path parameters

local_session_id: string

# Headers

"x-api-key": optional string

# Returns

type: "compliance_local_session"

default: compliance_local_session
id: string

Local session identifier, prefixed clls_. Unique within the parent organization. Treat as an opaque string; the format may change without notice.
created_at: string

Timestamp of the session's first retained inference call (RFC 3339, UTC). When a session's activity spans the child organization's retention boundary, calls older than the boundary are no longer reflected, so this value is the timestamp of the earliest retained call: always strictly after the boundary, never the boundary itself.

format: date-time
organization_uuid: string

UUID of the child organization the session belongs to
product_surface: string or null

The product the session ran in: cowork (Cowork in Claude Desktop on the user's machine), claude_code (Claude Code), claude_science (Claude Science), or one of office_agents/excel, office_agents/powerpoint, office_agents/word, and office_agents/outlook (Claude for Microsoft 365, by app; office_agents alone when the app is not identified). New values appear as coverage expands; treat unrecognized values as opaque. null when the surface was not recorded.
truncated: boolean

True when the session has more inference calls than the service can return for one session (100,000). The messages endpoint then returns only the session's earliest calls, up to that many, and ends before the session does; updated_at is a lower bound on the latest call and can differ between the list and retrieve endpoints. False for every session within that bound.

default: false
updated_at: string

Timestamp of the session's last retained inference call (RFC 3339, UTC). Always at or after created_at. When a session's activity spans the child organization's retention boundary, calls older than the boundary are no longer reflected — but because retention removes only the oldest calls, this value (unlike created_at) is unaffected until the entire session has aged out. On the list endpoint this value is a lower bound: for a session still active at a page or created_at.lt window boundary it can momentarily lag the session's true last activity. Retrieving the session, or its messages, always reflects the exact latest retained call.

format: date-time
user: object

The authenticated user at the time of the session. Always set; user.id is always populated. user.email_address is null when the user's account has been deleted or the user is no longer a member of an organization the key may read.
- id: string
  
  User identifier (tagged ID, prefixed user_). Always set, so attribution survives after the user's account is deleted or the user leaves the organizations the key may read.
- email_address: string or null
  
  User's email address. Null when the user's account has been deleted or the user is no longer a member of an organization the key may read. The messages endpoint does not resolve email addresses; this field is always null there.
workspace_id: string or null

Workspace identifier (tagged ID, prefixed wrkspc_). Null for sessions not attributed to a workspace.

# Example

bash

curl https://api.anthropic.com/v1/compliance/apps/sessions/local/$LOCAL_SESSION_ID \
    -H 'anthropic-version: 2023-06-01' \
    -H "Authorization: Bearer $ANTHROPIC_COMPLIANCE_API_KEY"

# Response (200)

json

{
  "type": "compliance_local_session",
  "id": "clls_eyJ2IjoxLCJvIjoiOWEx…",
  "organization_uuid": "9a1e0000-0000-0000-0000-000000000000",
  "workspace_id": "wrkspc_01SvYKoWVRVHoEbwESNvzYdR",
  "user": {
    "id": "user_01GpKpLmNoPqRsTuVwXyZaBc",
    "email_address": "engineer@example.com"
  },
  "product_surface": "cowork",
  "created_at": "2026-07-09T14:02:11Z",
  "updated_at": "2026-07-09T15:47:33Z"
}

# Sessions › Local › Messages

# Retrieve local session messages

GET /v1/compliance/apps/sessions/local/{local_session_id}/messages

Read one local session's transcript, oldest-first by default.

Retention is enforced read-side: turns at or before the child organization's retention boundary are never returned; a session that straddles the boundary carries one leading content_unavailable placeholder (reason: "retention_elapsed") in their place. The boundary is pinned on the walk's first page and honored for 24 hours: a cursor older than that is rejected with an explicit 400; restart the walk to read under the current boundary.

# Path parameters

local_session_id: string

# Query parameters

limit: optional number

Maximum results (default: 100, max: 1000)

default: 100, maximum: 1000, minimum: 1
order: optional "asc" or "desc"

Sort direction. asc (oldest-first, default) or desc.

default: asc
- "asc"
- "desc"
page: optional string

Opaque pagination token from a previous response's next_page field. Pass this to retrieve the next page of results. Clients should treat this value as an opaque string and not attempt to parse or interpret its contents, as the format may change without notice.
tool_result_max_bytes: optional number

Truncate each text item inside a tool result to at most this many bytes (cut on a code-point boundary). Pass -1 to request the server maximum (approximately 1 MiB); larger values are clamped to it. 0 is not a valid value.

default: 10000, maximum: 2147483647, minimum: -1
tool_use_input_max_bytes: optional number

Truncate each tool-use input to at most this many bytes (cut on a code-point boundary so the result is valid UTF-8). Pass -1 to request the server maximum (approximately 1 MiB); larger values are clamped to it. 0 is not a valid value.

default: 10000, maximum: 2147483647, minimum: -1

# Headers

"x-api-key": optional string

# Returns

data: array of object

Transcript turns for this page, in call order: oldest call first by default, newest call first with order=desc. The messages of one call carry the call's timestamp and follow each other in transcript order; a page boundary can fall between them.
- type: "compliance_local_session_message"
  
  default: compliance_local_session_message
- id: string
  
  Message identifier, prefixed clsm_. Stable for as long as the message's turn is retained: identifiers of retained turns do not change as older turns age out of the organization's retention period. The retention_elapsed placeholder's identifier is distinct from every retained turn's and changes only when further turns age out.
- content: array of Text or ToolUse or ToolResult
  
  Content blocks within the message, discriminated on type (text / tool_use / tool_result: the same discriminator values as the claude.ai chat-messages endpoint; the tool variants omit integration_name and mcp_server_url, and text carries truncated). Extended-thinking content is never included. The request's system field is never included; a presence-only marker message is emitted when it was set. The request's tools[] definitions are never included as transcript messages. Project-level instructions (such as CLAUDE.md files) appear in the message stream as a user-role context block and are included. Empty when provenance.type is content_unavailable.
  - Text object
    
    Text content block.
    - type: "text"
      
      default: text
    - text: string
      
      Text content from the user or the assistant
    - truncated: boolean
      
      True when text was shortened by the server's fixed per-string bound (approximately 1 MiB), or when ancillary content the block carried (such as citations) was omitted, or when this block stands in for a non-text block whose content is not shown, or when it is an explanatory marker the server inserted (its text enclosed in square brackets, e.g. prefacing client-asserted history). There is no request parameter that raises the per-string bound.
      
      default: false
  - ToolUse object
    
    Tool invocation requested by the assistant.
    - type: "tool_use"
      
      default: tool_use
    - id: string or null
      
      Tool-use ID, e.g. 'toolu_01AbC...'
    - input: string
      
      Arguments passed to the tool, as a JSON-encoded string. May be shortened (see the truncated field); a truncated value is cut mid-document and is not valid JSON.
    - name: string
      
      Name of the tool invoked
    - truncated: boolean
      
      True when input was shortened. Pass tool_use_input_max_bytes=-1 to request the server maximum.
      
      default: false
  - ToolResult object
    
    Result returned by a tool invocation.
    - type: "tool_result"
      
      default: tool_result
    - content: array of object
      
      Text content returned by the tool. Non-text item types are omitted and signalled via truncated with an in-band item-count marker.
      - type: "text"
        
        default: text
      - text: string
        
        Text returned by the tool
    - is_error: boolean
      
      True when the tool reported an error
    - name: string
      
      Name of the tool that produced this result
    - tool_use_id: string or null
      
      ID of the tool_use block this result responds to
    - truncated: boolean
      
      True when one or more text items in content were shortened or non-text items were omitted. Pass tool_result_max_bytes=-1 to request the server maximum.
      
      default: false
- created_at: string
  
  When the message was recorded (RFC 3339, UTC)
  
  format: date-time
- model: string or null
  
  The model that served this assistant turn, as reported in the model field of the underlying Messages API response. Null on user messages and on any assistant message whose provenance is set: client-asserted history and synthetic markers were not produced by a model during this session, and for unavailable content the serving model is not known.
- provenance: ContentUnavailable or ClientAsserted or SyntheticMarker or null
  
  Where this turn's content came from, discriminated on type. Null (the common case) means verified content: on an assistant message, content Claude produced during this session; on a user message, content the user sent. content_unavailable: the turn's content cannot be returned and content is empty; reason says why. client_asserted: assistant content the client supplied as conversation history; content shows what the model received but its authorship is not verified; never on user-role messages. synthetic_marker: a transcript marker the endpoint generated rather than content either party sent during the session. Both client_asserted and synthetic_marker can result from normal request or client processing, not only client modification. Callers should tolerate unrecognized type values.
  - ContentUnavailable object
    
    The turn's content cannot be returned; content is empty.
    - type: "content_unavailable"
      
      default: content_unavailable
    - reason: string
      
      Why this turn's content cannot be returned, e.g. not_captured (the content was not captured for compliance retrieval), client_aborted (the client closed the connection or cancelled the request before the response completed, so the response was not captured for this turn; any partial output already streamed to the client is not included; assistant-role turns only), cmek_key_revoked (the content is encrypted under the organization's customer-managed key and that key is unavailable), retention_elapsed (the content lies past the organization's retention boundary; on the placeholder standing in for every pre-boundary turn), or oversize (the message exceeds the server's per-message size bound even after per-block truncation). Callers should tolerate unrecognized values. not_captured is not proof that no record was stored: content withheld by the storage layer's fail-closed access policies carries the same reason and is deliberately indistinguishable from content that was never captured.
  - ClientAsserted object
    
    Assistant content the client supplied as conversation history rather than produced by Claude during this session. content shows what the model received but its authorship is not verified; this can result from normal request or client processing, not only client modification. Never on user-role messages.
    - type: "client_asserted"
      
      default: client_asserted
  - SyntheticMarker object
    
    A transcript marker generated by the endpoint rather than sent by either party during the session. Marker messages indicate that the prompt history diverged from what was captured, that the request's system field was present but is not shown, or that earlier turns that a request re-sent as history were withheld because they cannot be dated against the child organization's data-retention period (only for organizations with a finite retention period; the request's new user input after its last assistant turn is not affected). The marker's text names the cause. Markers that report a mismatch with captured history can result from normal request or client processing, not only client modification.
    - type: "synthetic_marker"
      
      default: synthetic_marker
- role: "assistant" or "user"
  
  Message sender (user or assistant)
  - "assistant"
  - "user"
next_page: string or null

Opaque pagination cursor (prefixed page_) for the next page. Null when there is no further page. Treat as an opaque string; the format may change without notice.
session: object

The local session the messages belong to. user.email_address is always null on this endpoint; the messages endpoint does not resolve email addresses.
- type: "compliance_local_session"
  
  default: compliance_local_session
- id: string
  
  Local session identifier, prefixed clls_. Unique within the parent organization. Treat as an opaque string; the format may change without notice.
- created_at: string
  
  Timestamp of the session's first retained inference call (RFC 3339, UTC). When a session's activity spans the child organization's retention boundary, calls older than the boundary are no longer reflected, so this value is the timestamp of the earliest retained call: always strictly after the boundary, never the boundary itself.
  
  format: date-time
- organization_uuid: string
  
  UUID of the child organization the session belongs to
- product_surface: string or null
  
  The product the session ran in: cowork (Cowork in Claude Desktop on the user's machine), claude_code (Claude Code), claude_science (Claude Science), or one of office_agents/excel, office_agents/powerpoint, office_agents/word, and office_agents/outlook (Claude for Microsoft 365, by app; office_agents alone when the app is not identified). New values appear as coverage expands; treat unrecognized values as opaque. null when the surface was not recorded.
- truncated: boolean
  
  True when the session has more inference calls than the service can return for one session (100,000). The messages endpoint then returns only the session's earliest calls, up to that many, and ends before the session does; updated_at is a lower bound on the latest call and can differ between the list and retrieve endpoints. False for every session within that bound.
  
  default: false
- updated_at: string
  
  Timestamp of the session's last retained inference call (RFC 3339, UTC). Always at or after created_at. When a session's activity spans the child organization's retention boundary, calls older than the boundary are no longer reflected — but because retention removes only the oldest calls, this value (unlike created_at) is unaffected until the entire session has aged out. On the list endpoint this value is a lower bound: for a session still active at a page or created_at.lt window boundary it can momentarily lag the session's true last activity. Retrieving the session, or its messages, always reflects the exact latest retained call.
  
  format: date-time
- user: object
  
  The authenticated user at the time of the session. Always set; user.id is always populated. user.email_address is null when the user's account has been deleted or the user is no longer a member of an organization the key may read.
  - id: string
    
    User identifier (tagged ID, prefixed user_). Always set, so attribution survives after the user's account is deleted or the user leaves the organizations the key may read.
  - email_address: string or null
    
    User's email address. Null when the user's account has been deleted or the user is no longer a member of an organization the key may read. The messages endpoint does not resolve email addresses; this field is always null there.
- workspace_id: string or null
  
  Workspace identifier (tagged ID, prefixed wrkspc_). Null for sessions not attributed to a workspace.

# Example

bash

curl https://api.anthropic.com/v1/compliance/apps/sessions/local/$LOCAL_SESSION_ID/messages \
    -H 'anthropic-version: 2023-06-01' \
    -H "Authorization: Bearer $ANTHROPIC_COMPLIANCE_API_KEY"

# Response (200)

json

{
  "data": [
    {
      "id": "clsm_eyJ2IjoxLCJsIjoi…",
      "content": [
        {
          "text": "text",
          "truncated": true,
          "type": "text"
        }
      ],
      "created_at": "2025-03-12T18:22:41.123456Z",
      "model": "claude-opus-5",
      "provenance": {
        "reason": "not_captured",
        "type": "content_unavailable"
      },
      "role": "assistant",
      "type": "compliance_local_session_message"
    }
  ],
  "next_page": "page_eyJ2IjoxLCJmIjoibSIs…",
  "session": {
    "id": "clls_eyJ2IjoxLCJvIjoiOWEx…",
    "created_at": "2025-03-12T18:22:41.123456Z",
    "organization_uuid": "a1b2c3d4-e5f6-4789-a012-3456789abcde",
    "product_surface": "cowork",
    "truncated": true,
    "type": "compliance_local_session",
    "updated_at": "2025-03-12T18:22:41.123456Z",
    "user": {
      "id": "user_01WCz1FkmYMm4gnmykNKUu3Q",
      "email_address": "jane.doe@example.com"
    },
    "workspace_id": "wrkspc_01SvYKoWVRVHoEbwESNvzYdR"
  }
}

# Sessions › Remote

# List remote sessions

GET /v1/compliance/apps/sessions/remote

List remote sessions (Cowork sessions that run in Anthropic-managed cloud environments) across the organizations the key may read.

Each entry carries session metadata only; retrieve a session's transcript from the messages endpoint. By default the list spans every such organization; pass up to 500 organization_ids[] values to narrow it. Pass 1 to 10 user_ids[] values to scope the list to specific users: that filter matches the session's owning user, so agent-owned sessions are excluded whenever it is set. Bound results in time with the created_at range parameters (created_at.gte, created_at.gt, created_at.lt, created_at.lte; RFC 3339). There is no updated_at filter.

Results are sorted newest first by created_at, with at most limit sessions per page (default 100, maximum 500). Pagination is forward-only: pass the response's next_page value back as page to retrieve the next page, and stop when next_page is null.

# Query parameters

created_at: optional object
- gt: optional string
  
  Filter remote sessions created after this time (RFC 3339 format)
  
  format: date-time
- gte: optional string
  
  Filter remote sessions created at or after this time (RFC 3339 format)
  
  format: date-time
- lt: optional string
  
  Filter remote sessions created before this time (RFC 3339 format)
  
  format: date-time
- lte: optional string
  
  Filter remote sessions created at or before this time (RFC 3339 format)
  
  format: date-time
limit: optional number

Maximum results (default: 100, max: 500)

default: 100, maximum: 500, minimum: 1
organization_ids: optional array of string

Filter to specific child organization identifiers. Omit to enumerate every child organization the key may read.

maxItems: 500
page: optional string

Opaque pagination token from a previous response's next_page field. Pass this to retrieve the next page of results. Clients should treat this value as an opaque string and not attempt to parse or interpret its contents, as the format may change without notice.
user_ids: optional array of string

Filter to sessions owned by specific users (max 10 per request). Agent-owned sessions are excluded when this filter is set.

maxItems: 10

# Headers

"x-api-key": optional string

# Returns

data: array of object
- id: string
  
  Remote session identifier
- agent_id: string or null
  
  Identifier of the automated agent that owns the session. Null for user-owned sessions. At most one of user and agent_id is set.
- claude_project_id: string or null
  
  ID of the project the session is bound to. Null when the session has no project binding.
- created_at: string
  
  When the session was created (RFC 3339, UTC)
  
  format: date-time
- organization_uuid: string
  
  UUID of the organization the session belongs to
- product_surface: string or null
  
  The Claude product the session was created from. Currently cowork_remote, for Cowork sessions started on claude.ai web or mobile. More values will appear as other surfaces launch, so treat any unrecognized value as an unclassified surface rather than an error. Null for sessions created before this field was recorded, for surfaces that do not stamp it, and for unrecognized tag values.
- started_by_user: object or null
  
  A user associated with a remote session.
  - id: string
    
    User identifier
  - email_address: string or null
    
    User's email address. Null when the user is no longer a member of an organization the key may read — id remains set so attribution is preserved. The messages endpoint does not resolve email addresses; this field is always null there.
- status: string
  
  Session lifecycle state. One of active, paused, archived, or failed — the lifecycle states the owning product surface exposes — plus pending, a brief transient state that resolves before any transcript content exists. The list endpoint includes pending; the messages endpoint returns 404 for it. Deleted sessions are not returned on either endpoint. Treat unrecognized values as an unknown state rather than an error.
- updated_at: string
  
  When the session was last modified (RFC 3339, UTC)
  
  format: date-time
- user: object or null
  
  A user associated with a remote session.
  - id: string
    
    User identifier
  - email_address: string or null
    
    User's email address. Null when the user is no longer a member of an organization the key may read — id remains set so attribution is preserved. The messages endpoint does not resolve email addresses; this field is always null there.
next_page: string or null

Opaque page token; pass as page to retrieve the next page. Null when no rows exist after this page. Treat this value as opaque; do not parse or store it long-term, as the format may change without notice.

# Example

bash

curl https://api.anthropic.com/v1/compliance/apps/sessions/remote \
    -H 'anthropic-version: 2023-06-01' \
    -H "Authorization: Bearer $ANTHROPIC_COMPLIANCE_API_KEY"

# Response (200)

json

{
  "data": [
    {
      "id": "cse_01A0000000000000000000000",
      "organization_uuid": "00000000-0000-0000-0000-000000000000",
      "user": {
        "id": "user_01A0000000000000000000000",
        "email_address": "user@example.com"
      },
      "status": "active",
      "created_at": "2026-01-02T03:04:05.000000Z",
      "updated_at": "2026-01-02T03:04:05.000000Z",
      "product_surface": "cowork_remote",
      "claude_project_id": "claude_proj_01Nm7PqRsTuVwXyZaBcDeFgH"
    }
  ],
  "next_page": "page_AAE..."
}

# Sessions › Remote › Messages

# Retrieve remote session messages

GET /v1/compliance/apps/sessions/remote/{claude_remote_session_id}/messages

Retrieve one remote session's transcript: user prompts, assistant responses, and tool calls and results. Thinking blocks and images are not included.

Messages are returned oldest first by default; pass order=desc to reverse. Pagination uses the same page/next_page scheme as the list endpoint, with at most limit messages per page (default 100, maximum 1000); keep paginating until next_page is null. tool_use_input_max_bytes and tool_result_max_bytes cap how many bytes of each tool-use input and each tool-result text item are returned; a block shortened by either cap carries truncated: true.

The response embeds the session's metadata under session alongside the paginated data array. On this endpoint session.user.email_address and session.started_by_user are always null; read them from the list endpoint instead.

Returns 404 while the session is still pending, for deleted sessions, and for sessions outside the organizations the key may read. A malformed session identifier returns 400.

# Path parameters

claude_remote_session_id: string

The remote session identifier (cse_...) to retrieve

# Query parameters

limit: optional number

Maximum results (default: 100, max: 1000)

default: 100, maximum: 1000, minimum: 1
order: optional "asc" or "desc"

Sort direction. asc (oldest-first) or desc.

default: asc
- "asc"
- "desc"
page: optional string

Opaque pagination token from a previous response's next_page field. Pass this to retrieve the next page of results. Clients should treat this value as an opaque string and not attempt to parse or interpret its contents, as the format may change without notice.
tool_result_max_bytes: optional number

Truncate each text item inside a tool result to at most this many bytes (cut on a code-point boundary). Pass -1 to request the server maximum. 0 is not a valid value.

default: 10000, maximum: 2147483647, minimum: -1
tool_use_input_max_bytes: optional number

Truncate each tool-use input to at most this many bytes (cut on a code-point boundary so the result is valid UTF-8). Pass -1 to request the server maximum. 0 is not a valid value.

default: 10000, maximum: 2147483647, minimum: -1

# Headers

"x-api-key": optional string

# Returns

data: array of object

Transcript turns for this page, ordered by transcript position. created_at is a commit timestamp and may tie or invert under concurrent writes; do not re-sort by it.
- id: string
  
  Unique identifier for the message, e.g. csev_abc123
- content: array of Text or ToolUse or ToolResult
  
  Content blocks within the message
  - Text object
    
    Text content block.
    - type: "text"
      
      default: text
    - text: string
      
      Text content from the user or the assistant
    - truncated: boolean
      
      True when text exceeded the server-defined maximum (approximately 1 MiB) and was shortened.
      
      default: false
  - ToolUse object
    
    Tool invocation requested by the assistant.
    - type: "tool_use"
      
      default: tool_use
    - id: string or null
      
      Tool-use ID, e.g. 'toolu_01AbC...'
    - input: string
      
      Arguments passed to the tool, as a JSON-encoded string. May be shortened — see the truncated field
    - name: string
      
      Name of the tool invoked
    - truncated: boolean
      
      True when input was shortened. Pass tool_use_input_max_bytes=-1 to request full content, subject to the server-side maximum.
      
      default: false
  - ToolResult object
    
    Result returned by a tool invocation.
    - type: "tool_result"
      
      default: tool_result
    - content: array of object
      
      Text content returned by the tool. Non-text item types are omitted.
      - type: "text"
        
        default: text
      - text: string
        
        Text returned by the tool
    - is_error: boolean
      
      True when the tool reported an error
    - name: string
      
      Name of the tool that produced this result
    - tool_use_id: string or null
      
      ID of the tool_use block this result responds to
    - truncated: boolean
      
      True when one or more text items in content were shortened. Pass tool_result_max_bytes=-1 to request full content, subject to the server-side maximum.
      
      default: false
- content_unavailable: boolean
  
  True when the stored content could not be returned — it could not be decrypted, or it exceeded the server's per-event size bound. content is empty in that case; this distinguishes 'no content' from 'content withheld'.
  
  default: false
- created_at: string
  
  When the message was recorded (RFC 3339, UTC)
  
  format: date-time
- role: "assistant" or "user"
  
  Message sender (user or assistant)
  - "assistant"
  - "user"
- sent_by_user_id: string or null
  
  Identifier of the human account that sent this turn on an agent-owned session. Null on user-owned sessions, where every user-role turn was sent by the session's user.
next_page: string or null

Opaque page token; pass as page to retrieve the next page. Null when no rows exist after this page. Treat this value as opaque; do not parse or store it long-term, as the format may change without notice.
session: object

Session metadata. started_by_user, user.email_address, and claude_project_id are always null on this endpoint; the messages endpoint resolves neither email addresses nor project bindings.
- id: string
  
  Remote session identifier
- agent_id: string or null
  
  Identifier of the automated agent that owns the session. Null for user-owned sessions. At most one of user and agent_id is set.
- claude_project_id: string or null
  
  ID of the project the session is bound to. Null when the session has no project binding.
- created_at: string
  
  When the session was created (RFC 3339, UTC)
  
  format: date-time
- organization_uuid: string
  
  UUID of the organization the session belongs to
- product_surface: string or null
  
  The Claude product the session was created from. Currently cowork_remote, for Cowork sessions started on claude.ai web or mobile. More values will appear as other surfaces launch, so treat any unrecognized value as an unclassified surface rather than an error. Null for sessions created before this field was recorded, for surfaces that do not stamp it, and for unrecognized tag values.
- started_by_user: object or null
  
  A user associated with a remote session.
  - id: string
    
    User identifier
  - email_address: string or null
    
    User's email address. Null when the user is no longer a member of an organization the key may read — id remains set so attribution is preserved. The messages endpoint does not resolve email addresses; this field is always null there.
- status: string
  
  Session lifecycle state. One of active, paused, archived, or failed — the lifecycle states the owning product surface exposes — plus pending, a brief transient state that resolves before any transcript content exists. The list endpoint includes pending; the messages endpoint returns 404 for it. Deleted sessions are not returned on either endpoint. Treat unrecognized values as an unknown state rather than an error.
- updated_at: string
  
  When the session was last modified (RFC 3339, UTC)
  
  format: date-time
- user: object or null
  
  A user associated with a remote session.
  - id: string
    
    User identifier
  - email_address: string or null
    
    User's email address. Null when the user is no longer a member of an organization the key may read — id remains set so attribution is preserved. The messages endpoint does not resolve email addresses; this field is always null there.

# Example

bash

curl https://api.anthropic.com/v1/compliance/apps/sessions/remote/$CLAUDE_REMOTE_SESSION_ID/messages \
    -H 'anthropic-version: 2023-06-01' \
    -H "Authorization: Bearer $ANTHROPIC_COMPLIANCE_API_KEY"

# Response (200)

json

{
  "data": [
    {
      "id": "id",
      "content": [
        {
          "text": "text",
          "truncated": true,
          "type": "text"
        }
      ],
      "content_unavailable": true,
      "created_at": "2019-12-27T18:11:19.117Z",
      "role": "assistant",
      "sent_by_user_id": "sent_by_user_id"
    }
  ],
  "next_page": "next_page",
  "session": {
    "id": "id",
    "agent_id": "agent_id",
    "claude_project_id": "claude_project_id",
    "created_at": "2019-12-27T18:11:19.117Z",
    "organization_uuid": "organization_uuid",
    "product_surface": "product_surface",
    "started_by_user": {
      "id": "id",
      "email_address": "email_address"
    },
    "status": "status",
    "updated_at": "2019-12-27T18:11:19.117Z",
    "user": {
      "id": "id",
      "email_address": "email_address"
    }
  }
}

spb doc-api

# title: Sessions url: https://platform.claude.com/docs/en/api/compliance/apps/sessions

# Sessions

# Sessions › Local

# List local sessions

# Query parameters

# Headers

# Returns

# Example

# Response (200)

# Retrieve a local session

# Path parameters

# Headers

# Returns

# Example

# Response (200)

# Sessions › Local › Messages

# Retrieve local session messages

# Path parameters

# Query parameters

# Headers

# Returns

# Example

# Response (200)

# Sessions › Remote

# List remote sessions

# Query parameters

# Headers

# Returns

# Example

# Response (200)

# Sessions › Remote › Messages

# Retrieve remote session messages

# Path parameters

# Query parameters

# Headers

# Returns

# Example

# Response (200)

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