> ## Documentation Index > Fetch the complete documentation index at: https://docs.deck.co/llms.txt > Use this file to discover all available pages before exploring further. # Retrieve a session > Returns a single session by ID, including the task runs executed within it. ## OpenAPI ````yaml /api-reference/v2.json get /sessions/{session_id} openapi: 3.1.1 info: title: Deck API version: 2.0.0 servers: - url: https://api.deck.co/v2 description: Production security: - BearerAuth: [] tags: - name: Agents description: >- Agents are the AI workers that execute tasks against sources. Create and manage the agents in your organization. - name: Components description: >- Embeddable UI components. Create short-lived session tokens for the Auth Component. - name: Platform description: Organization-wide platform settings, such as the static IP range. - name: Credentials description: >- Credentials store the login details an agent uses at a source. Values are tokenized at rest and never returned in plaintext. - name: Event Destinations description: >- Where Deck delivers events: webhooks, SQS, Kinesis, S3, and more. Manage destinations and inspect delivery attempts. - name: Events description: >- Immutable records of things that happened in your organization, such as a task run completing or a credential being verified. - name: Sessions description: >- Sessions are agent sandbox lifetimes. A session is created for each task run (or explicitly) and counts toward your concurrency limit. - name: Sources description: >- Sources are the websites and portals agents work against. Register, inspect, reset, and delete them. - name: Storage description: >- Files produced by task runs: downloaded documents, exports, and extraction results. - name: Task Runs description: >- A task run is one execution of a task. Inspect status and output, retrieve files and screenshots, cancel runs, and answer interaction requests. - name: Tasks description: >- Tasks define reusable units of work for an agent: a goal, an input schema, and an output schema. Run them against sources with credentials. - name: Test description: Connectivity check for your API key. - name: Triggers description: Triggers run tasks automatically on a schedule or in response to events. - name: Workflows - name: Workflow Runs paths: /sessions/{session_id}: get: tags: - Sessions summary: Retrieve a session description: >- Returns a single session by ID, including the task runs executed within it. operationId: getSession parameters: - name: session_id in: path required: true schema: type: string pattern: ^sess_ example: sess_AbC123xYz456 description: Unique identifier for the session (prefixed with `sess_`). responses: '200': description: OK content: text/plain: schema: $ref: '#/components/schemas/GetSessionResponse' application/json: schema: $ref: '#/components/schemas/GetSessionResponse' text/json: schema: $ref: '#/components/schemas/GetSessionResponse' '400': description: Bad request — validation error or malformed input. content: application/json: schema: $ref: '#/components/schemas/ValidationErrorResponse' '401': description: Unauthorized. '403': description: Forbidden. '404': description: Not found — the requested resource does not exist. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '409': description: >- Conflict — the request is valid but cannot be completed in the current state. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: >- Unprocessable content — the request body is understood but contains invalid values. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '429': description: >- Too many requests — the organization-wide API rate limit was exceeded (`rate_limit_exceeded`). Retry with exponential backoff. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: GetSessionResponse: required: - id - object - status - runtime_ms - task_runs - created_at - updated_at - request_id type: object properties: id: type: string description: Unique identifier for the session, prefixed with `sess_`. pattern: ^sess_ example: sess_AbC123xYz456 object: type: string description: Always `session`. status: type: string description: >- Session status: `queued`, `running`, `idle`, `completing`, `completed`, or `failed`. source_id: type: string description: >- The source the session was prepared for. Present only when a `source_id` was passed when starting the session. Prefixed with `src_`. pattern: ^src_ example: src_AbC123xYz456 runtime_ms: pattern: ^-?(?:0|[1-9]\d*)$ type: - 'null' - integer - string format: int32 description: Total session runtime in milliseconds. task_runs: type: array items: $ref: '#/components/schemas/SessionTaskRunData' description: Task runs executed within this session. created_at: type: string format: date-time description: ISO 8601 timestamp of when the resource was created. example: '2026-08-24T12:00:00Z' updated_at: type: string format: date-time description: ISO 8601 timestamp of when the resource was last updated. example: '2026-08-24T12:00:00Z' request_id: type: string description: >- Unique identifier for the API request. Include this when contacting support. description: >- A session object representing an isolated compute session for executing tasks. ValidationErrorResponse: required: - errors type: object properties: type: type: - 'null' - string description: RFC 9110 problem type URI. title: type: - 'null' - string description: Short summary of the validation failure. status: type: - 'null' - integer description: HTTP status code. format: int32 errors: type: object additionalProperties: type: array items: type: string description: Validation errors grouped by field name. traceId: type: - 'null' - string description: Request trace identifier. description: Validation error returned for malformed requests (HTTP 400). ErrorResponse: required: - errors - request_id type: object properties: errors: type: array items: $ref: '#/components/schemas/TaskRunError' description: One or more errors that describe what went wrong. request_id: type: string description: Unique identifier for this request, useful for tracing. description: Standard error response. SessionTaskRunData: required: - id - task_id - agent_id - credential_id type: object properties: id: type: string description: Unique identifier for the task run. task_id: type: string description: ID of the task that was executed. agent_id: type: string description: ID of the agent that executed the run. credential_id: type: - 'null' - string description: ID of the credential used for authentication, if any. description: Lightweight summary of a task run within a session. TaskRunError: required: - type - code - message type: object properties: type: type: string description: >- Error category (e.g. `source`, `auth`, `task`, `rate_limit`). Determines the class of failure. code: type: string description: Machine-readable error code. Use this for programmatic handling. message: type: string description: >- Human-readable explanation. Do not rely on this for logic — it may change. field: type: - 'null' - string description: The input field that caused the error, when applicable. description: Error details for a failed task run. Same structure as API-level errors. securitySchemes: BearerAuth: type: http description: Secret key (sk_live_...) scheme: bearer bearerFormat: JWT ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.