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

# Overview

> Official Python and Node SDKs for pre.dev Browser Agents — fully-typed clients with sync, async, and SSE streaming built in.

The same `predev-api` package that wraps the Architect endpoints also ships the Browser Agents client. One install, one key, both surfaces.

## Official SDKs

<CardGroup cols={2}>
  <Card title="Python SDK" icon="python" href="/browser-agents/sdks/python">
    `pip install predev-api` — synchronous, async, and streaming task runs with a single method.
  </Card>

  <Card title="Node SDK" icon="node-js" href="/browser-agents/sdks/node">
    `npm install predev-api` — fully-typed TypeScript client with async generators for SSE streams.
  </Card>
</CardGroup>

## Features

Both SDKs expose the full Browser Agents surface:

* **Run tasks** — submit one or thousands of tasks in a single call, with `concurrency` control
* **Sync mode** — waits for every task to complete and returns the full result
* **Async mode** — submit and return immediately with a batch id you can poll
* **Streaming mode** — live SSE stream of `task_event`, `task_result`, `done`, and `error` frames
* **Status polling** — fetch a task submission by id, optionally with the full per-step event timeline (screenshots, plans, actions, validations)
* **Typed results** — structured `data` validated against your JSON Schema `output`
* **Error handling** — typed exceptions for auth, rate limits, and API errors

<Card title="Get your API key" icon="key" href="https://pre.dev/projects/browser-agents" horizontal>
  Grab a key, set it as `PREDEV_API_KEY`, then follow either SDK page.
</Card>