## List Sessions `$ ant beta:sessions list` **get** `/v1/sessions` List Sessions ### Parameters - `--agent-id: optional string` Query param: Filter sessions created with this agent ID. - `--agent-version: optional number` Query param: Filter by agent version. Only applies when agent_id is also set. - `--created-at-gt: optional string` Query param: Return sessions created after this time (exclusive). - `--created-at-gte: optional string` Query param: Return sessions created at or after this time (inclusive). - `--created-at-lt: optional string` Query param: Return sessions created before this time (exclusive). - `--created-at-lte: optional string` Query param: Return sessions created at or before this time (inclusive). - `--deployment-id: optional string` Query param: Filter sessions created by this deployment ID. - `--include-archived: optional boolean` Query param: When true, includes archived sessions. Default: false (exclude archived). - `--limit: optional number` Query param: Maximum number of results to return. - `--memory-store-id: optional string` Query param: Filter sessions whose resources contain a memory_store with this memory store ID. - `--order: optional "asc" or "desc"` Query param: Sort direction for results, ordered by created_at. Defaults to desc (newest first). - `--page: optional string` Query param: Opaque pagination cursor from a previous response. - `--status: optional array of "rescheduling" or "running" or "idle" or "terminated"` Query param: Filter by session status. Repeat the parameter to match any of multiple statuses. - `--beta: optional array of AnthropicBeta` Header param: Optional header to specify the beta version(s) you want to use. ### Returns - `BetaManagedAgentsListSessions: object { data, next_page }` Paginated list of sessions. - `data: optional array of BetaManagedAgentsSession` List of sessions. - `id: string` - `agent: object { id, description, mcp_servers, 8 more }` Resolved `agent` definition for a `session`. Snapshot of the `agent` at `session` creation time. - `id: string` - `description: string` - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition` - `name: string` - `type: "url"` - `"url"` - `url: string` - `model: object { id, speed }` Model identifier and configuration. - `id: "claude-fable-5" or "claude-opus-4-8" or "claude-opus-4-7" or 8 more or string` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options. - `"claude-fable-5"` Next generation of intelligence for the hardest knowledge work and coding problems - `"claude-opus-4-8"` Frontier intelligence for long-running agents and coding - `"claude-opus-4-7"` Frontier intelligence for long-running agents and coding - `"claude-opus-4-6"` Most intelligent model for building agents and coding - `"claude-sonnet-4-6"` Best combination of speed and intelligence - `"claude-haiku-4-5"` Fastest model with near-frontier intelligence - `"claude-haiku-4-5-20251001"` Fastest model with near-frontier intelligence - `"claude-opus-4-5"` Premium model combining maximum intelligence with practical performance - `"claude-opus-4-5-20251101"` Premium model combining maximum intelligence with practical performance - `"claude-sonnet-4-5"` High-performance model for agents and coding - `"claude-sonnet-4-5-20250929"` High-performance model for agents and coding - `speed: optional "standard" or "fast"` Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Not all models support `fast`; invalid combinations are rejected at create time. - `"standard"` - `"fast"` - `multiagent: object { agents, type }` Resolved coordinator topology with full agent definitions for each roster member. - `agents: array of BetaManagedAgentsSessionThreadAgent` Full `agent` definitions the coordinator may spawn as session threads. - `id: string` - `description: string` - `mcp_servers: array of BetaManagedAgentsMCPServerURLDefinition` - `name: string` - `type: "url"` - `url: string` - `model: object { id, speed }` Model identifier and configuration. - `id: "claude-fable-5" or "claude-opus-4-8" or "claude-opus-4-7" or 8 more or string` The model that will power your agent. See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options. - `speed: optional "standard" or "fast"` Inference speed mode. `fast` provides significantly faster output token generation at premium pricing. Not all models support `fast`; invalid combinations are rejected at create time. - `name: string` - `skills: array of BetaManagedAgentsAnthropicSkill or BetaManagedAgentsCustomSkill` - `beta_managed_agents_anthropic_skill: object { skill_id, type, version }` A resolved Anthropic-managed skill. - `skill_id: string` - `type: "anthropic"` - `"anthropic"` - `version: string` - `beta_managed_agents_custom_skill: object { skill_id, type, version }` A resolved user-created custom skill. - `skill_id: string` - `type: "custom"` - `"custom"` - `version: string` - `system: string` - `tools: array of BetaManagedAgentsAgentToolset20260401 or BetaManagedAgentsMCPToolset or BetaManagedAgentsCustomTool` - `beta_managed_agents_agent_toolset20260401: object { configs, default_config, type }` - `configs: array of BetaManagedAgentsAgentToolConfig` - `enabled: boolean` - `name: "bash" or "edit" or "read" or 5 more` Built-in agent tool identifier. - `"bash"` - `"edit"` - `"read"` - `"write"` - `"glob"` - `"grep"` - `"web_fetch"` - `"web_search"` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object { type }` Tool calls are automatically approved without user confirmation. - `type: "always_allow"` - `"always_allow"` - `beta_managed_agents_always_ask_policy: object { type }` Tool calls require user confirmation before execution. - `type: "always_ask"` - `"always_ask"` - `default_config: object { enabled, permission_policy }` Resolved default configuration for agent tools. - `enabled: boolean` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object { type }` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object { type }` Tool calls require user confirmation before execution. - `type: "agent_toolset_20260401"` - `"agent_toolset_20260401"` - `beta_managed_agents_mcp_toolset: object { configs, default_config, mcp_server_name, type }` - `configs: array of BetaManagedAgentsMCPToolConfig` - `enabled: boolean` - `name: string` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object { type }` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object { type }` Tool calls require user confirmation before execution. - `default_config: object { enabled, permission_policy }` Resolved default configuration for all tools from an MCP server. - `enabled: boolean` - `permission_policy: BetaManagedAgentsAlwaysAllowPolicy or BetaManagedAgentsAlwaysAskPolicy` Permission policy for tool execution. - `beta_managed_agents_always_allow_policy: object { type }` Tool calls are automatically approved without user confirmation. - `beta_managed_agents_always_ask_policy: object { type }` Tool calls require user confirmation before execution. - `mcp_server_name: string` - `type: "mcp_toolset"` - `"mcp_toolset"` - `beta_managed_agents_custom_tool: object { description, input_schema, name, type }` A custom tool as returned in API responses. - `description: string` - `input_schema: object { type, properties, required }` JSON Schema for custom tool input parameters. - `type: "object"` - `properties: optional map[unknown]` - `required: optional array of string` - `name: string` - `type: "custom"` - `"custom"` - `type: "agent"` - `"agent"` - `version: number` - `type: "coordinator"` - `"coordinator"` - `name: string` - `skills: array of BetaManagedAgentsAnthropicSkill or BetaManagedAgentsCustomSkill` - `beta_managed_agents_anthropic_skill: object { skill_id, type, version }` A resolved Anthropic-managed skill. - `beta_managed_agents_custom_skill: object { skill_id, type, version }` A resolved user-created custom skill. - `system: string` - `tools: array of BetaManagedAgentsAgentToolset20260401 or BetaManagedAgentsMCPToolset or BetaManagedAgentsCustomTool` - `beta_managed_agents_agent_toolset20260401: object { configs, default_config, type }` - `beta_managed_agents_mcp_toolset: object { configs, default_config, mcp_server_name, type }` - `beta_managed_agents_custom_tool: object { description, input_schema, name, type }` A custom tool as returned in API responses. - `type: "agent"` - `"agent"` - `version: number` - `archived_at: string` A timestamp in RFC 3339 format - `created_at: string` A timestamp in RFC 3339 format - `environment_id: string` - `metadata: map[string]` - `outcome_evaluations: array of BetaManagedAgentsOutcomeEvaluationResource` Per-outcome evaluation state. One entry per define_outcome event sent to the session. - `completed_at: string` A timestamp in RFC 3339 format - `description: string` What the agent should produce. - `explanation: string` Grader's verdict text from the most recent evaluation. For satisfied, explains why criteria are met; for needs_revision (intermediate), what's missing; for failed, why unrecoverable. - `iteration: number` 0-indexed revision cycle the outcome is currently on. - `outcome_id: string` Server-generated outc_ ID for this outcome. - `result: string` Current evaluation state. `pending` before the agent begins work; `running` while producing or revising; `evaluating` while the grader scores; `satisfied`/`max_iterations_reached`/`failed`/`interrupted` are terminal. - `type: "outcome_evaluation"` - `"outcome_evaluation"` - `resources: array of BetaManagedAgentsSessionResource` - `beta_managed_agents_github_repository_resource: object { id, created_at, mount_path, 4 more }` - `id: string` - `created_at: string` A timestamp in RFC 3339 format - `mount_path: string` - `type: "github_repository"` - `"github_repository"` - `updated_at: string` A timestamp in RFC 3339 format - `url: string` - `checkout: optional BetaManagedAgentsBranchCheckout or BetaManagedAgentsCommitCheckout` - `beta_managed_agents_branch_checkout: object { name, type }` - `name: string` Branch name to check out. - `type: "branch"` - `"branch"` - `beta_managed_agents_commit_checkout: object { sha, type }` - `sha: string` Full commit SHA to check out. - `type: "commit"` - `"commit"` - `beta_managed_agents_file_resource: object { id, created_at, file_id, 3 more }` - `id: string` - `created_at: string` A timestamp in RFC 3339 format - `file_id: string` - `mount_path: string` - `type: "file"` - `"file"` - `updated_at: string` A timestamp in RFC 3339 format - `beta_managed_agents_memory_store_resource: object { memory_store_id, type, access, 4 more }` A memory store attached to an agent session. - `memory_store_id: string` The memory store ID (memstore_...). Must belong to the caller's organization and workspace. - `type: "memory_store"` - `"memory_store"` - `access: optional "read_write" or "read_only"` Access mode for an attached memory store. - `"read_write"` - `"read_only"` - `description: optional string` Description of the memory store, snapshotted at attach time. Rendered into the agent's system prompt. Empty string when the store has no description. - `instructions: optional string` Per-attachment guidance for the agent on how to use this store. Rendered into the memory section of the system prompt. Max 4096 chars. - `mount_path: optional string` Filesystem path where the store is mounted in the session container, e.g. /mnt/memory/user-preferences. Derived from the store's name. Output-only. - `name: optional string` Display name of the memory store, snapshotted at attach time. Later edits to the store's name do not propagate to this resource. - `stats: object { active_seconds, duration_seconds }` Timing statistics for a session. - `active_seconds: optional number` Cumulative time in seconds the session spent in running status. Excludes idle time. - `duration_seconds: optional number` Elapsed time since session creation in seconds. For terminated sessions, frozen at the final update. - `status: "rescheduling" or "running" or "idle" or "terminated"` SessionStatus enum - `"rescheduling"` - `"running"` - `"idle"` - `"terminated"` - `title: string` - `type: "session"` - `"session"` - `updated_at: string` A timestamp in RFC 3339 format - `usage: object { cache_creation, cache_read_input_tokens, input_tokens, output_tokens }` Cumulative token usage for a session across all turns. - `cache_creation: optional object { ephemeral_1h_input_tokens, ephemeral_5m_input_tokens }` Prompt-cache creation token usage broken down by cache lifetime. - `ephemeral_1h_input_tokens: optional number` Tokens used to create 1-hour ephemeral cache entries. - `ephemeral_5m_input_tokens: optional number` Tokens used to create 5-minute ephemeral cache entries. - `cache_read_input_tokens: optional number` Total tokens read from prompt cache. - `input_tokens: optional number` Total input tokens consumed across all turns. - `output_tokens: optional number` Total output tokens generated across all turns. - `vault_ids: array of string` Vault IDs attached to the session at creation. Empty when no vaults were supplied. - `deployment_id: optional string` Deployment ID when the session was created from a deployment reference. Null otherwise. - `next_page: optional string` Opaque cursor for the next page. Null when no more results. ### Example ```cli ant beta:sessions list \ --api-key my-anthropic-api-key ``` #### Response ```json { "data": [ { "id": "sesn_011CZkZAtmR3yMPDzynEDxu7", "agent": { "id": "agent_011CZkYpogX7uDKUyvBTophP", "description": "A general-purpose starter agent.", "mcp_servers": [ { "name": "example-mcp", "type": "url", "url": "https://example-server.modelcontextprotocol.io/sse" } ], "model": { "id": "claude-sonnet-4-6", "speed": "standard" }, "multiagent": { "agents": [ { "id": "agent_011CZkYqphY8vELVzwCUpqiQ", "description": "A focused research subagent.", "mcp_servers": [ { "name": "example-mcp", "type": "url", "url": "https://example-server.modelcontextprotocol.io/sse" } ], "model": { "id": "claude-sonnet-4-6", "speed": "standard" }, "name": "Researcher", "skills": [ { "skill_id": "xlsx", "type": "anthropic", "version": "1" } ], "system": "You are a research subagent that gathers and summarises sources for the coordinating agent.", "tools": [ { "configs": [ { "enabled": true, "name": "bash", "permission_policy": { "type": "always_allow" } } ], "default_config": { "enabled": true, "permission_policy": { "type": "always_ask" } }, "type": "agent_toolset_20260401" } ], "type": "agent", "version": 1 } ], "type": "coordinator" }, "name": "My First Agent", "skills": [ { "skill_id": "xlsx", "type": "anthropic", "version": "1" }, { "skill_id": "skill_011CZkZFNu9hAbo3jZPRgTlx", "type": "custom", "version": "2" } ], "system": "You are a general-purpose agent that can research, write code, run commands, and use connected tools to complete the user's task end to end.", "tools": [ { "configs": [ { "enabled": true, "name": "bash", "permission_policy": { "type": "always_allow" } } ], "default_config": { "enabled": true, "permission_policy": { "type": "always_ask" } }, "type": "agent_toolset_20260401" } ], "type": "agent", "version": 1 }, "archived_at": null, "created_at": "2026-03-15T10:00:00Z", "environment_id": "env_011CZkZ9X2dpNyB7HsEFoRfW", "metadata": {}, "outcome_evaluations": [ { "completed_at": "2026-03-15T10:02:31Z", "description": "Produce a 2-page summary as summary.md", "explanation": "All five sections present with inline citations.", "iteration": 0, "outcome_id": "outc_011CZkZRSw2kEfs6ncTVljxP", "result": "satisfied", "type": "outcome_evaluation" } ], "resources": [ { "id": "sesrsc_011CZkZBJq5dWxk9fVLNcPht", "created_at": "2026-03-15T10:00:00Z", "file_id": "file_011CNha8iCJcU1wXNR6q4V8w", "mount_path": "/uploads/receipt.pdf", "type": "file", "updated_at": "2026-03-15T10:00:00Z" }, { "id": "sesrsc_011CZkZCKr6eXyl0gWMOdQiu", "created_at": "2026-03-15T10:00:00Z", "mount_path": "/workspace/example-repo", "type": "github_repository", "updated_at": "2026-03-15T10:00:00Z", "url": "https://github.com/example-org/example-repo", "checkout": { "name": "main", "type": "branch" } } ], "stats": { "active_seconds": 0, "duration_seconds": 0 }, "status": "idle", "title": "Order #1234 inquiry", "type": "session", "updated_at": "2026-03-15T10:00:00Z", "usage": { "cache_creation": { "ephemeral_1h_input_tokens": 0, "ephemeral_5m_input_tokens": 0 }, "cache_read_input_tokens": 0, "input_tokens": 0, "output_tokens": 0 }, "vault_ids": [ "vlt_011CZkZDLs7fYzm1hXNPeRjv" ], "deployment_id": "deployment_id" } ], "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo=" } ```