浏览器自动化工具

Install

pip install browsewright          # core
pip install "browsewright[mcp]"   # + MCP server (Claude Desktop / Code / any client)

Or from source:

git clone https://github.com/krishnashakula/browsewright && cd browsewright
python -m venv .venv && . .venv/bin/activate    # Windows: .venv\Scripts\activate
pip install -e .

Add your Anthropic API key:

```bash cp .env.example .env

Build your own task with the core primitive

Every task is a thin wrapper over extract_structured(url, schema). Define any schema, get JSON back:

import asyncio
from browsewright import extract_structured

schema = {"headline": "string",
          "open_roles": [{"title": "string", "team": "string", "location": "string"}]}
data = asyncio.run(extract_structured(
    "https://example.com/careers", schema,
    instruction="Extract the page headline and every open job posting."))
print(data["open_roles"])

edit .env and paste your key from https://console.anthropic.com/settings/keys

```

The first browser run launches Chrome via nodriver (Chrome must be installed).

bw "not recognized" after install? pip put the scripts in a folder that isn't on your PATH (common on Windows). Use the module form, which always works: python -m browsewright "<url>" "<goal>" · python -m browsewright.tasks_cli enrich "<url>"

---

RESULT [api] 412 tokens 3.1s

Stripe is financial infrastructure for the internet. It provides payment processing, billing, and treasury APIs for businesses from

FAQ

What is Browsewright? Browsewright is an open-source, MIT-licensed Python library for intent-driven browser automation and AI web scraping. You give it a URL and a goal in plain language, and a large language model drives a real Chrome browser to navigate, fill out forms, bypass bot protection, and return structured JSON instead of raw HTML. Install it with pip install browsewright.

How is Browsewright different from Playwright or Selenium? Playwright and Selenium automate a browser that you script with explicit selectors and XPath. Browsewright is the opposite: you describe intent ("find the pricing", "fill this form") and an LLM decides the actions, so there are no selectors to write and no scrapers to maintain when a site changes its layout.

How is Browsewright different from Firecrawl, Browser-Use, and Tavily? Browsewright fills and submits real forms, drives a real Chrome browser, tries free API and archive shortcuts before launching a browser, and runs fully locally on your own API key. Firecrawl and Tavily return text but do not fill forms or drive a real browser, and Browser-Use drives a browser but is scripted rather than intent-first and has no free pre-flight shortcut.

Can Browsewright fill out and submit web forms? Yes. Browsewright reads a form's field labels, maps a user profile onto the fields with an LLM, selects valid dropdown options, submits the form, and parses the results into JSON. It has filled real government records forms that expose no API.

Does Browsewright work on websites with no API? Yes. Browsewright drives a real browser the way a human would, so it works on sites that have no API at all, including 20-year-old ASP.NET pages that are invisible to HTTP-only scrapers.

Can Browsewright get past Cloudflare or DataDome bot protection? Browsewright runs a real Chrome browser via nodriver with a native TLS fingerprint and a human motor layer (Bézier-curve mouse movement, typing cadence, and scroll pacing), which lets it pass many Cloudflare, Akamai, and DataDome bot checks. Bypassing CDN bot protection is disabled in the default polite mode and is only enabled with the --aggressive flag on sites you own or are authorized to test.

How much does it cost to run? In a benchmark across 50 diverse websites, Browsewright extracted all 50 for $0.047 total, with about 28% answered by a free API or archive shortcut and no browser at all. It tries the cheapest path first and only launches Chrome when a page requires it.

Is Browsewright free and open source? Yes. Browsewright is free and MIT-licensed, runs locally, and uses your own Anthropic API key, so you pay only for the LLM tokens you use — typically a fraction of a cent per page.

Can I use Browsewright with Claude or as an MCP tool? Yes. Browsewright ships an MCP server (bw-mcp) that exposes a read_page(url, goal) tool to any MCP client, including Claude Desktop and Claude Code. Install it with pip install "browsewright[mcp]".

Does Browsewright run locally? Yes. Browsewright runs entirely on your own machine with your own API key. There is no SaaS backend, and no data is sent anywhere except the LLM provider you configure.

What do I need to run Browsewright? Browsewright requires Python 3.10 or newer and a local installation of Chrome, which it launches via nodriver on the first browser run. Add an Anthropic API key to a .env file to get started.

---