> ## Documentation Index
> Fetch the complete documentation index at: https://docs.idun-group.com/llms.txt
> Use this file to discover all available pages before exploring further.

# List Sessions

> List session summaries from the active memory backend.

Returns 501 when the adapter doesn't support listing (an ADK agent,
or a LangGraph agent without a checkpointer). When SSO is enabled,
the user id from the JWT is forwarded to the adapter for per-user
scoping.



## OpenAPI

````yaml /standalone/openapi.json get /agent/sessions
openapi: 3.1.0
info:
  title: Idun Agent Engine Server
  description: A production-ready server for conversational AI agents
  version: 0.6.1
servers: []
security: []
tags:
  - name: Runtime
    description: >-
      Public agent run endpoints, engine operations, and chat-channel webhooks.
      SSE streaming via the AG-UI protocol.
  - name: Agent Configuration
    description: >-
      Singleton admin endpoints for the agent, prompts, memory, guardrails, and
      onboarding wizard.
  - name: Auth & SSO
    description: >-
      Login, sessions, password change, SSO config, and the public SSO discovery
      endpoint.
  - name: Integrations & Tools
    description: MCP server registry and external integration credentials.
  - name: Observability
    description: Tracing/logging provider configuration.
  - name: Traces
    description: >-
      Trace and span storage admin endpoints — list, detail, delete, and
      pipeline-health for the standalone trace store.
  - name: Dashboard
    description: >-
      Operator dashboard widgets — KPIs, time-series, top errors, and
      configuration summary.
paths:
  /agent/sessions:
    get:
      tags:
        - Runtime
      summary: List Sessions
      description: |-
        List session summaries from the active memory backend.

        Returns 501 when the adapter doesn't support listing (an ADK agent,
        or a LangGraph agent without a checkpointer). When SSO is enabled,
        the user id from the JWT is forwarded to the adapter for per-user
        scoping.
      operationId: list_sessions_agent_sessions_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                items:
                  $ref: '#/components/schemas/SessionSummary'
                type: array
                title: Response List Sessions Agent Sessions Get
components:
  schemas:
    SessionSummary:
      properties:
        id:
          type: string
          title: Id
          description: AG-UI thread id used for routing.
        lastUpdateTime:
          anyOf:
            - type: number
            - type: 'null'
          title: Lastupdatetime
          description: Epoch seconds.
        userId:
          anyOf:
            - type: string
            - type: 'null'
          title: Userid
        threadId:
          anyOf:
            - type: string
            - type: 'null'
          title: Threadid
          description: AG-UI thread id; equals id for LangGraph, may differ for ADK.
        preview:
          anyOf:
            - type: string
            - type: 'null'
          title: Preview
          description: First user-authored text, ~120 chars max.
      type: object
      required:
        - id
      title: SessionSummary
      description: One row in /agent/sessions list view.

````