> ## Documentation Index > Fetch the complete documentation index at: https://docs.anchorbrowser.io/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Anchor Browser is cloud browser infrastructure for AI agents and automation: browser sessions you control over CDP or REST, natural-language web tasks, versioned automation tasks, managed authentication into third-party web apps (identities with MFA), persistent volumes and profiles, recordings, live view, batch sessions, webhooks, and network options including residential proxies, extra stealth, and captcha solving for sites that block standard browsers. AI agents should start at https://docs.anchorbrowser.io/for-agents, then get an API key with Agent Access at https://docs.anchorbrowser.io/quickstart/agent-access — no dashboard account required. Read those two pages before authentication or API calls. # Get Task Version (Legacy) > Retrieves a specific version of a task, including the full code content. If you are using the new Task Builder, see the Tasks V2 endpoints in this API reference. ## OpenAPI ````yaml /openapi.yaml get /v1/task/{taskId}/{taskVersion} openapi: 3.1.0 info: title: AnchorBrowser API version: 1.0.0 description: > Anchor Browser ([anchorbrowser.io](https://anchorbrowser.io)) provides cloud browsers built for AI agents and automation. Use this API to launch and control browser sessions, run natural-language web tasks, authenticate into third-party web apps with managed identities, and capture recordings — reliably and at scale, without operating browser infrastructure yourself. ## Core resources - **Sessions** (`/v1/sessions`): launch configurable cloud browsers — residential proxies, stealth browsing, captcha solving, profiles, extensions, recording — and connect over CDP with Playwright, Puppeteer, or any CDP client. - **AI tools** (`/v1/tools/perform-web-task`): state a goal in natural language and the built-in agent completes it inside the browser. Related tools fetch webpages, take screenshots, render PDFs, and execute code in a session. - **Tasks** (`/v1/task`): create, version, deploy, and monitor repeatable browser automations built to run reliably in production. - **Applications and identities** (`/v1/applications`, `/v1/identities`): managed authentication into third-party web apps — including multi-step logins and TOTP-based 2FA — so agents can act on behalf of users. - **Profiles** (`/v1/profiles`): persist cookies and login state across sessions. - **OS-level control** (`/v1/sessions/{sessionId}/mouse`, `/keyboard`, `/clipboard`): raw input for flows that resist DOM automation. - Plus batch sessions for running browser fleets in parallel, session recordings, webhooks, events, extensions, client certificates, and billing usage. ## Authentication Pass an API key in the `anchor-api-key` header on every request. Create keys at [app.anchorbrowser.io](https://app.anchorbrowser.io) under API Access. AI agents that have no key yet can obtain one autonomously through the unauthenticated [agent-access flow](https://docs.anchorbrowser.io/quickstart/agent-access) (`POST /v1/agent-access`). ## For AI agents and LLMs - Docs: [docs.anchorbrowser.io](https://docs.anchorbrowser.io), with a machine-readable index at [/llms.txt](https://docs.anchorbrowser.io/llms.txt) and the full corpus at [/llms-full.txt](https://docs.anchorbrowser.io/llms-full.txt). - MCP server for hosted browser control: `https://api.anchorbrowser.io/mcp`. - Official SDKs: `anchorbrowser` on [npm](https://www.npmjs.com/package/anchorbrowser) and [PyPI](https://pypi.org/project/anchorbrowser/). `DELETE` operations terminate sessions or permanently remove resources (profiles, identities, extensions); `GET` operations are safe and read-only. servers: - url: https://api.anchorbrowser.io description: API server security: [] paths: /v1/task/{taskId}/{taskVersion}: get: tags: - Tasks (Legacy) summary: Get Task Version (Legacy) description: > Retrieves a specific version of a task, including the full code content. If you are using the new Task Builder, see the Tasks V2 endpoints in this API reference. parameters: - name: taskId in: path required: true description: The ID of the task schema: type: string format: uuid - name: taskVersion in: path required: true description: The version to retrieve (draft, latest, or version number) schema: type: string pattern: ^(draft|latest|\d+)$ responses: '200': description: Task version retrieved successfully content: application/json: schema: $ref: '#/components/schemas/TaskVersionResponse' '404': description: Task or version not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Failed to retrieve task version content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - api_key_header: [] components: schemas: TaskVersionResponse: type: object properties: data: $ref: '#/components/schemas/TaskVersion' ErrorResponse: type: object properties: error: type: object properties: code: type: integer message: type: string TaskVersion: type: object properties: id: type: string format: uuid description: Unique identifier for the task version taskId: type: string format: uuid description: Parent task identifier version: type: string description: Version identifier (draft, latest, or version number) code: type: string description: Base64 encoded task code language: type: string enum: - typescript description: Programming language for the task description: type: string maxLength: 1000 description: Optional description of the version browserConfiguration: $ref: '#/components/schemas/SessionConfig' description: Browser configuration for task execution deleted: type: boolean description: Whether the version is soft deleted createdAt: type: string format: date-time description: Version creation timestamp updatedAt: type: string format: date-time description: Version last update timestamp required: - id - taskId - version - code - deleted - createdAt - updatedAt SessionConfig: type: object description: Session-related configurations. properties: initial_url: type: string format: uri description: >- The URL to navigate to when the browser session starts. If not provided, the browser will load an empty page. tags: type: array items: type: string description: >- Custom labels to categorize and identify browser sessions. Useful for filtering, organizing, and tracking sessions across your workflows. example: - production - scraping - customer-123 recording: type: object description: Configuration for session recording. properties: active: type: boolean description: >- Enable or disable video recording of the browser session. Defaults to `true`. proxy: $ref: '#/components/schemas/ProxyConfig' timeout: type: object description: Timeout configurations for the browser session. properties: max_duration: type: integer description: >- Maximum time (in minutes) the session can run before automatically terminating. Defaults to `20`. Set to `-1` to disable this limit. idle_timeout: type: integer description: >- Time (in minutes) the session waits for new connections after all others are closed before stopping. Defaults to `5`. Set to `-1` to disable this limit. live_view: type: object description: Configuration for live viewing the browser session. properties: read_only: type: boolean description: >- Enable or disable read-only mode for live viewing. Defaults to `false`. one_time_url: type: boolean description: >- Generate a single-use live view URL. After the first viewer connects, the link becomes invalid. Requires a headful browser. Defaults to `false`. x402: type: boolean default: false description: >- Allow this browser session to automatically pay x402-protected resources using Amazon Bedrock AgentCore Payments. ProxyConfig: description: | Proxy Documentation available at [Proxy Documentation](/advanced/proxy) type: object oneOf: - $ref: '#/components/schemas/AnchorProxy' - $ref: '#/components/schemas/CustomProxy' AnchorProxy: title: Anchor Proxy type: object properties: active: type: boolean type: type: string enum: - anchor_proxy description: >- Create a session with a proxy to access websites as if you're browsing from a computer in that country. title: anchor_proxy country_code: $ref: '#/components/schemas/AnchorProxyCountryCode' description: | Supported country codes ISO 2 lowercase region: type: string description: | Region code for more specific geographic targeting. The city parameter can only be used when region is also provided. city: type: string description: > City name for precise geographic targeting. Supported for anchor_proxy only. Can only be used when region is also provided. required: - active CustomProxy: title: Custom Proxy type: object properties: type: type: string enum: - custom server: type: string description: >- Proxy address in **PROTOCOL://HOST:PORT** format (e.g., https://proxy.example.com:443). See [Bring Your Own Proxy](/advanced/bring-your-own-proxy). username: type: string description: Proxy username password: type: string description: Proxy password active: type: boolean required: - type - server - username - password - active AnchorProxyCountryCode: type: string title: anchor_proxy enum: - af - al - dz - ad - ao - as - ag - ar - am - aw - au - at - az - bs - bh - bb - by - be - bz - bj - bm - bo - ba - br - bg - bf - cm - ca - cv - td - cl - co - cg - cr - ci - hr - cu - cy - cz - dk - dm - do - ec - eg - sv - ee - et - fo - fi - fr - gf - pf - ga - gm - ge - de - gh - gi - gr - gd - gp - gt - gg - gn - gw - gy - ht - hn - hu - is - in - ir - iq - ie - il - it - jm - jp - jo - kz - kw - kg - lv - lb - ly - li - lt - lu - mk - ml - mt - mq - mr - mx - md - mc - me - ma - nl - nz - ni - ng - 'no' - pk - pa - py - pe - ph - pl - pt - pr - qa - ro - lc - sm - sa - sn - rs - sc - sl - sk - si - so - za - kr - es - sr - se - ch - sy - st - tw - tj - tg - tt - tn - tr - tc - ua - ae - us - uy - uz - ve - ye default: us securitySchemes: api_key_header: type: apiKey in: header name: anchor-api-key description: > API key for your Anchor Browser account, sent as the `anchor-api-key` header on every request. Create one at [app.anchorbrowser.io](https://app.anchorbrowser.io) (API Access), or obtain one programmatically via the unauthenticated agent-access flow (`POST /v1/agent-access`). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.