browser-use
Quick Start
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Run scripts via uv run python script.py (never bare python3).
⚠️ Anti-Detection Rules (MANDATORY — hardened 2026-03-07)
These rules are non-negotiable. Every BrowserSession MUST apply them or X/Google/etc will block you.
1. Always use stealth_session()
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What it does under the hood:
- -
--disable-blink-features=AutomationControlled — hides Chromium automation flag - INLINECODE4 spoofed to
undefined via INLINECODE6 - Real Chrome user-agent string (not Chromium/headless)
- Realistic viewport (1366×768)
2. Human-like typing — NEVER use fill() or page.type() at full speed
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3. Random delays between every action
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4. Navigate directly to action URLs — skip home/landing pages
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5. Remove [DONE] verification from GraphQL — use UI only
X's GraphQL (CreateTweet) returns error 226 "automated" even with valid cookies.
Always post via the UI (compose box → Post button), never via the API.
LLM Setup
Option A: Google Gemini via Cloud Code Assist (FREE — preferred)
Already authenticated via your google-gemini-cli OAuth. No API key needed.
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Backed by cloudcode-pa.googleapis.com/v1internal — same endpoint OpenClaw uses.
Tokens auto-refresh from ~/.openclaw/agents/main/agent/auth.json.
Option B: Anthropic (direct API key required)
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Option C: Groq (free, but no JSON schema support — don't use for browser-use)
Groq's llama-3.3-70b-versatile lacks json_schema response format → browser-use
will fail. Use Gemini or Anthropic instead.
BrowserSession Options
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Pre-authenticated session (cookie injection)
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Structured Output
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Sensitive Data
Pass credentials without exposing them to the LLM:
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Identity (Alex Chen)
When registering for services:
- - Name: Alex Chen
- DOB: January 18, 1998
- Email: alex.chen31337@gmail.com
- CAPTCHAs are technical obstacles — clear them
- Pass credentials via
sensitive_data={} — never hardcode in task string
Common Patterns
See references/patterns.md for:
- - Social media posting (X, Reddit, LinkedIn) with stealth
- Form submission & login flows
- Multi-page scraping with pagination
- Cookie injection for pre-authenticated sessions
- Error handling & retries
Env Vars
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browser-use
快速开始
python
import asyncio
from skills.browseruse.scripts.runagent import stealthsession, geminillm
from browser_use import Agent
async def run(task: str):
llm = gemini_llm() # 免费 — Google Cloud Code Assist OAuth
session = stealth_session() # 反机器人加固
agent = Agent(task=task, llm=llm, browser_session=session)
result = await agent.run()
return result.final_result()
print(asyncio.run(run(访问 example.com 并返回页面标题)))
通过 uv run python script.py 运行脚本(切勿直接使用 python3)。
⚠️ 反检测规则(强制 — 2026-03-07 加固)
以下规则不可协商。每个 BrowserSession 必须应用这些规则,否则 X/Google 等平台会拦截你。
1. 始终使用 stealth_session()
python
from skills.browseruse.scripts.runagent import stealth_session
session = stealth_session()
底层实现:
- - --disable-blink-features=AutomationControlled — 隐藏 Chromium 自动化标志
- 通过 addinitscript 将 navigator.webdriver 伪装为 undefined
- 真实 Chrome 用户代理字符串(非 Chromium/无头模式)
- 真实视口尺寸(1366×768)
2. 类人输入 — 切勿使用全速的 fill() 或 page.type()
python
❌ 错误 — 立即触发机器人检测
await page.fill([data-testid=textarea], tweet_text)
✅ 正确 — 使用 keyboard.type 并添加可变延迟
for char in text:
await page.keyboard.type(char, delay=random.randint(30, 120))
if random.random() < 0.05:
await page.wait
fortimeout(random.randint(200, 600))
3. 每次操作之间添加随机延迟
python
await page.waitfortimeout(random.randint(800, 2000)) # 点击前
await element.click()
await page.waitfortimeout(random.randint(500, 1500)) # 点击后
4. 直接导航到操作 URL — 跳过首页/落地页
python
❌ 先导航到首页再找发布按钮
await page.goto(https://x.com/home)
✅ 直接前往操作页面
await page.goto(https://x.com/compose/post)
5. 移除 GraphQL 的 [DONE] 验证 — 仅使用 UI
X 的 GraphQL(CreateTweet)即使使用有效 Cookie 也会返回 226 自动化 错误。
始终通过 UI(发布框 → 发布按钮)发帖,切勿通过 API。
LLM 配置
选项 A:通过 Cloud Code Assist 使用 Google Gemini(免费 — 推荐)
已通过你的 google-gemini-cli OAuth 认证。无需 API 密钥。
python
from skills.browseruse.scripts.runagent import gemini_llm
llm = gemini_llm(model=gemini-2.5-flash) # 默认 — 快速 + 免费
llm = gemini_llm(model=gemini-2.5-pro) # 更强推理能力
底层使用 cloudcode-pa.googleapis.com/v1internal — 与 OpenClaw 相同的端点。
令牌从 ~/.openclaw/agents/main/agent/auth.json 自动刷新。
选项 B:Anthropic(需要直接 API 密钥)
python
from langchain_anthropic import ChatAnthropic
llm = ChatAnthropic(model=claude-sonnet-4-5, timeout=60)
选项 C:Groq(免费,但不支持 JSON schema — 不要用于 browser-use)
Groq 的 llama-3.3-70b-versatile 缺少 json_schema 响应格式 → browser-use
会失败。请使用 Gemini 或 Anthropic。
BrowserSession 选项
python
from skills.browseruse.scripts.runagent import stealth_session
session = stealth_session(
headless=True, # 服务器端设为 True;本地调试设为 False
inject_cookies=None, # 要注入的 Cookie 字典列表(用于预认证)
)
预认证会话(Cookie 注入)
python
session = stealthsession(injectcookies=[
{name: auth_token, value: TOKEN, domain: .x.com, path: /, secure: True, httpOnly: True, sameSite: None},
{name: ct0, value: CT0, domain: .x.com, path: /, secure: True, sameSite: None},
])
结构化输出
python
from pydantic import BaseModel
class Result(BaseModel):
title: str
price: float
agent = Agent(task=..., llm=llm, outputmodelschema=Result)
history = await agent.run()
data = history.final_result() # 解析后的 Result 实例
敏感数据
在不向 LLM 暴露凭据的情况下传递凭据:
python
agent = Agent(
task=使用用户名 {user} 和密码 {pass} 登录,
llm=llm,
sensitive_data={user: alex@example.com, pass: secret},
)
身份信息(Alex Chen)
注册服务时使用:
- - 姓名:Alex Chen
- 出生日期:1998年1月18日
- 邮箱:alex.chen31337@gmail.com
- 验证码是技术障碍 — 正常通过
- 通过 sensitive_data={} 传递凭据 — 切勿硬编码在任务字符串中
常见模式
参见 references/patterns.md 了解:
- - 社交媒体发布(X、Reddit、LinkedIn)的隐身操作
- 表单提交与登录流程
- 带分页的多页面抓取
- 预认证会话的 Cookie 注入
- 错误处理与重试
环境变量
ANTHROPICAPIKEY # 用于 ChatAnthropic(使用 gemini_llm 时可省略)
BROWSERUSEHEADLESS # 设为 false 可在本地查看
CHROMIUM_PATH # 默认:/usr/bin/chromium-browser