Browser Use
Browser agents and stealth cloud browsers for AI: run web tasks, fill forms, extract data.
作者提供的说明(英文原文)
Web scraping MCP server — scrape, extract structured data, screenshot any site with anti-bot bypass.
这三项永远不会合并成一个分数:意见、测量和人气是不同的东西。
我们还没有为它写通俗的介绍。下面是我们从注册中心读取到的事实。
选择你使用的 AI 应用,然后复制设置。
你需要
你用的是哪个应用?
在上方选择你的应用。我们会记住它,下次按钮会显示“安装到 …”。
适用于网页版、桌面版和手机版 Claude:
https://mcp.alterlab.io/mcp打开 Claude Desktop → Settings → Developer → Edit Config,把下面的内容粘贴到 claude_desktop_config.json
{
"mcpServers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server"
]
}
}
}在终端中运行这条命令
claude mcp add --transport http alterlab https://mcp.alterlab.io/mcpclaude mcp add alterlab -- npx -y alterlab-mcp-server粘贴到项目中的 .cursor/mcp.json,或 ~/.cursor/mcp.json
{
"mcpServers": {
"alterlab": {
"url": "https://mcp.alterlab.io/mcp"
}
}
}粘贴到项目中的 .cursor/mcp.json,或 ~/.cursor/mcp.json
{
"mcpServers": {
"alterlab": {
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server"
]
}
}
}浏览器会先询问是否打开应用,然后应用会显示设置并请你确认。密钥的值会留空,由你自己填写。
粘贴到项目中的 .vscode/mcp.json
{
"servers": {
"alterlab": {
"type": "http",
"url": "https://mcp.alterlab.io/mcp"
}
}
}粘贴到项目中的 .vscode/mcp.json
{
"servers": {
"alterlab": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"alterlab-mcp-server"
]
}
}
}浏览器会先询问是否打开应用,然后应用会显示设置并请你确认。密钥的值会留空,由你自己填写。
ChatGPT 只能连接互联网上的服务器:
https://mcp.alterlab.io/mcp菜单名称可能因套餐和版本不同而略有差异。
你的选择通过 Cookie 保存在这台设备上,无需账户。
这些设置是根据作者在注册中心的条目生成的。如果 README 的写法不同,请以 README 为准。
工具名称和描述与服务器在 2026年11月6日 报告的完全一致。这些内容由作者撰写,不是我们写的;我们以纯文本形式显示。
alterlab_scrapeFetch one URL and return its content as clean markdown, text, HTML, or JSON. Use when a normal fetch returns 403/429, a bot-protection challenge page, a CAPTCHA, or an empty JavaScript shell. Website challenges and JavaScript-heavy pages are handled automatically by a 5-tier syst
alterlab_extractExtract structured data (prices, product info, contact details, custom fields) as JSON from HTML, text or markdown you already hold. Use when you have content and need specific fields. Does not fetch a URL: to fetch and extract in one step, use alterlab_scrape with extraction_sch
alterlab_screenshotCapture a full-page PNG screenshot of one URL, an image rather than text content. Use when a normal fetch returns 403/429, a bot-protection challenge page, a CAPTCHA, or an empty JavaScript shell. Works on anti-bot-protected sites, rendered in a real headless browser. Use wait_fo
alterlab_crawlCrawl a whole website and return the content of every page, for RAG, indexing or site-wide export. Use when you need many pages from one domain; for one URL use alterlab_scrape, for a URL list only use alterlab_map. Works on JavaScript-heavy and protected sites, with anti-bot han
alterlab_searchSearch the web and get structured results (URLs, titles, snippets). Use when you have a question or topic but no URL yet; follow up with alterlab_scrape to read a page, or set scrape_results=true to read every result in one call. Use domain to restrict to one site and time_range
alterlab_mapList every URL on a site via sitemap parsing and link extraction, without fetching page content. Use before alterlab_crawl or alterlab_batch to choose pages; to read the content itself use alterlab_crawl. Works on JavaScript-heavy and protected sites. When you present results to
alterlab_batch_scrapeScrape 2-20 URLs in parallel and get every result back in one synchronous call, no polling required. Use when a normal fetch returns 403/429, a bot-protection challenge page, a CAPTCHA, or an empty JavaScript shell. Failed URLs report their error; successful ones return content.
alterlab_batchStart an asynchronous batch job for a large URL set (up to 100 per call) and poll for results later. Use when a normal fetch returns 403/429, a bot-protection challenge page, a CAPTCHA, or an empty JavaScript shell. Each URL can have its own mode, formats and extraction_schema. R
alterlab_estimate_costEstimate the credit cost of scraping a URL before you run it. Use when cost matters or before a large job; no credits are charged. Returns the predicted tier, estimated cost and confidence. Full machine-readable price list: GET https://alterlab.io/api/v1/pricing (public, no auth)
alterlab_pricingGet AlterLab's machine-readable price list: per-tier cost, bring-your-own-proxy discount, cache-hit discount, add-ons, search and SERP prices, and the free allowance. Use when deciding whether AlterLab fits a budget, before any account exists. Free and keyless; nothing is scraped
alterlab_newsSearch aggregated news headlines from curated public sources: headline, URL, source, published time, author, image, short snippet and category. Use to find what is being reported on a topic. Served from a cache that refreshes about every 15 minutes, so a call never triggers a fet
alterlab_keyword_ideasFan out a seed keyword across autocomplete (seed + a-z + who/what/how/why/best/vs), People Also Ask and related searches, and get deduplicated ideas, each with source, question flag, intent (question, commercial, navigational, informational) and a 0-1 relevance score. volume is a
alterlab_ai_visibilityRun prompts against AI answer engines through their public, logged-out interfaces and get, per engine and run, the answer text, whether the brand is mentioned and its position, competitors mentioned, cited URLs and domains and a sentiment label, plus per-prompt mention rate, shar
alterlab_feedbackTell AlterLab when something is hard, or what would make it better. Call this when something blocks you, a result is wrong, or a step is confusing, slow or priced unexpectedly, and also to send a suggestion (category `suggestion`, ideas welcome even when nothing is broken). Descr
alterlab_support_ticketOpen a support ticket in your user's AlterLab account when they need a human: a billing, account or data problem. Do not use it for scrape friction, blocks or ideas; use `alterlab_feedback` for those. Ask the user first: a ticket reaches a human and emails them. Requires an API k
alterlab_create_accountCreate an AlterLab account and API key for your user. Use only when no ALTERLAB_API_KEY exists yet; skip it if a key is already configured. Signup is on behalf of your user (agent signup with human approval). Nothing is created until the human approves: they get an email (and you
alterlab_create_api_keyCreate one scoped, spend-capped API key (ALTERLAB_API_KEY) for the SDK and REST API on this machine. Works only when the user ticked "Also create an API key for this machine" on the OAuth approval screen, so no second approval is needed. Skip it if a key is already configured. Th
search_alterlabUse this to look up how to do something with AlterLab (API parameters, SDKs, MCP setup, pricing, error codes, migration from Firecrawl/ScrapingBee/Apify) or to find a guide for scraping a specific site. Searches the docs guides and API reference by default (blog posts only when y
read_alterlab_pageUse this after search_alterlab to read the full text of one AlterLab page as markdown, so you can follow the documented steps instead of guessing. Pass the url of a search result. Only pages on alterlab.io that search_alterlab can return are readable. Free: needs no API key and n
alterlab_serpQuery a search engine and get structured results: organic listings, ads and related data, from Google, Bing or DuckDuckGo. Use action=search (default) to run a query, or action=history to read earlier SERP queries for your account. Prefer alterlab_search when you also want each r
alterlab_jobLook up a job by id. action=status (default) returns its status and result once finished; set wait (seconds) to hold the request until the job reaches a terminal status. action=explain returns the ordered per-stage timing breakdown, useful when a job was slow or failed. Job ids c
alterlab_balanceRead account credit data. action=balance (default) returns the current credit balance in microcents (1,000,000 microcents = $1.00) with formatted values. action=usage returns usage statistics. Read-only; call it before an expensive crawl or batch to confirm there are enough credi
alterlab_monitorManage change monitors. action=create watches a URL on a cron schedule and notifies by webhook when content changes; action=list returns your monitors; action=delete removes one by monitor_id (it stops running and cannot be restored). Each check spends credits like a scrape.
alterlab_scheduleManage recurring scrape schedules. action=create runs a scrape of one or more URLs on a cron expression; action=list returns your schedules; action=delete removes one by schedule_id (it stops triggering). Every run spends credits like a scrape; minimum intervals depend on your ba
alterlab_workflow_runStart an execution of a workflow you saved in the AlterLab dashboard. Optional input_data is passed to the workflow's webhook trigger node. Returns run_id, workflow_id and the initial status. The run spends credits for the steps it executes.
我们检查的是任何人都能看到的信息;我们没有阅读代码。不适用的检查项不计入总数。 · 检查于 2026年11月6日
注册名称已通过域名 alterlab.io 验证(注册中心会核实域名所有权)
我们还没有从 GitHub 读取这个仓库
我们还没有从 GitHub 读取这个仓库
在 492 毫秒内响应(HTTP 200)
无需登录
已读取 25 个工具描述,未发现针对 AI 的隐藏指令
与注册中心里这个分类中所有活跃的服务器比较。只有当发布者拥有该仓库时,星标数才计入。
它在 3 项适用的基础检查中通过了 3 项。我们没有阅读代码。在添加密钥或令牌之前,请先看看这个服务器要求哪些权限,并使用只具备所需权限的密钥。
注册中心没有列出必需的密钥,不过有些服务器会在首次使用时要求你登录。
两种方式都可以:安装在你的电脑上,或者连接云端版本。
GitHub 仓库最后更新于–,最新版本(1.12.11)于今天进入注册中心。
支持 MCP 的应用,例如 Claude Desktop、Claude Code、Cursor 和 VS Code。它通过 URL 连接,所以接受远程 MCP 服务器的应用也可以使用,例如开启开发者模式的 ChatGPT。
同一分类中有:Browser Use, Chrome DevTools MCP, MCP Server Browser
同一分类中其他作者的服务器,按星标数排序。
如何看卡片:★ GitHub 星标i三大支柱:评价 · 检查 · 使用情况i更新 = 最新版本发布到注册中心的时间i
Browser agents and stealth cloud browsers for AI: run web tasks, fill forms, extract data.
MCP server for Chrome DevTools
MCP server for browser use access
按原文从作者的仓库复制。PopNx MCP 没有审查或背书其内容。HTML、图片和脚本已被移除。链接会离开本站。
AlterLab MCP Server
Give Claude, Cursor, and Windsurf the ability to scrape any website, extract structured data, and take screenshots — with automatic anti-bot bypass.
Get Started Free → $1 free balance on signup — up to 5,000 scrapes.
claude mcp add alterlab -- npx -y alterlab-mcp-server@latest
Then set your API key: export ALTERLAB_API_KEY=sk_live_... or add it to .claude.json (see full setup below).
# Add to .cursor/mcp.json — see full config below
npx -y @smithery/cli install alterlab-mcp-server --client claude
Claude's built-in WebFetch tool and open-source browser MCP servers fail on most real-world websites. They cannot bypass Cloudflare, render JavaScript SPAs, or extract structured data.
AlterLab replaces broken fetch tools with one MCP server that actually works:
| Capability | WebFetch / fetch() | Browser MCP | AlterLab MCP |
|---|---|---|---|
| Anti-bot bypass (Cloudflare, DataDome, Akamai) | No | Partial | Yes — automatic |
| JavaScript rendering (React, Angular, Vue SPAs) | No | Yes (slow) | Yes — headless Chromium |
| Structured data extraction (JSON, Schema.org) | No | No | Yes — built-in profiles |
| Smart tier escalation (cheapest method first) | N/A | N/A | Yes — saves 60-80% |
| Residential proxy rotation (195+ countries) | No | No | Yes |
| Screenshot and PDF capture | No | Screenshot only | Yes — both |
| OCR text extraction from images | No | No | Yes |
| Cost per request | Free (but fails) | Free (but slow) | From $0.0002 |
AlterLab uses a multi-tier scraping architecture. It automatically selects the cheapest method capable of fetching each URL:
Auto mode starts at Tier 1 and escalates only when blocked. Most websites resolve at Tiers 1-2, so $1 gets you 1,000 to 5,000 scrapes depending on the sites you target.
Add to your Claude config file (~/.claude.json for Claude Code, or Settings for Claude Desktop):
{
"mcpServers": { "alterlab": { "command": "npx", "args": ["-y", "alterlab-mcp-server@latest"], "env": { "ALTERLAB_API_KEY": "sk_live_your_key_here" } } } }
Add to .cursor/mcp.json in your project root:
{
"mcpServers": { "alterlab": { "command": "npx", "args": ["-y", "alterlab-mcp-server@latest"], "env": { "ALTERLAB_API_KEY": "sk_live_your_key_here" } } } }
Add to Windsurf MCP settings (~/.codeium/windsurf/mcp_config.json):
{
"mcpServers": { "alterlab": { "command": "npx", "args": ["-y", "alterlab-mcp-server@latest"], "env": { "ALTERLAB_API_KEY": "sk_live_your_key_here" } } } }
npx -y @smithery/cli install alterlab-mcp-server --client claude
ALTERLAB_API_KEY field in your MCP configalterlab_scrape — Scrape Any WebpageScrape a URL and return its content as markdown, text, HTML, or JSON. Automatically handles anti-bot protection with tier escalation. Returns markdown by default — optimized for LLM context windows.
"Scrape https://www.amazon.com/dp/B0BSHF7WHW and summarize the product"
| Parameter | Type | Default | Description | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
url | string | required | URL to scrape | |||||||
mode | auto \ | html \ | js \ | pdf \ | ocr | auto | Scraping mode | |||
method / body / content_type / headers | enum / string / enum / object | GET | POST support (1.5x cost) and custom target headers | |||||||
formats | `(text\ | json\ | json_v2\ | html\ | markdown\ | rag\ | content\ | raw)[]` | ["markdown"] | Output formats |
extraction_schema / extraction_prompt | object / string | — | LLM extraction (+$0.001) | |||||||
extraction_profile / extraction_template | enum | — | auto, product, article, job_posting, faq, recipe, event, ecommerce_homepage, directory_listing (template is a deprecated alias) | |||||||
extraction_provider / extraction_model | enum / string | — | BYOK LLM selection | |||||||
evidence, promote_schema_org, filter_content | boolean | — | Extraction behaviour | |||||||
cache, cache_ttl, force_refresh | boolean / number / boolean | — | Response caching (cache_ttl 60-86400) | |||||||
render_js | boolean \ | "auto" | API default | Headless browser (forces Browser tier, $0.004) | ||||||
use_proxy, proxy_country | boolean, string | — | Premium proxy (+$0.0002) and geo-targeting | |||||||
use_own_proxy, use_system_proxy, proxy_integration_id | boolean, boolean, string | — | Bring-your-own-proxy selection | |||||||
skip_tls_verification | boolean | — | Omit (recommended) = verify, fall back on invalid certs; true skip, false require valid cert | |||||||
wait_for, wait_until, wait_condition | string | — | Selector / load-event waits | |||||||
actions | object[] (max 20) | — | Browser actions: wait, wait_for, click, fill, press, scroll, infinite_scroll, screenshot, evaluate | |||||||
screenshot, generate_pdf, ocr | boolean | — | Add-ons (+$0.0002 / +$0.0004 / +$0.001) | |||||||
scroll_to_load, scroll_count, enable_scroll | boolean / 1-10 / boolean | — | Lazy-load handling | |||||||
include_iframes, flatten_shadow_dom, block_images, remove_cookie_banners | boolean | — | Rendering options | |||||||
section_filter | object | — | Filter for json_v2 sections | |||||||
session_id, cookies, session_headers | UUID, object, object | — | Authenticated scraping | |||||||
sticky_session, sticky_session_ttl | string, 300-7200 | — | Reuse cookies and exit IP across calls (paid plans) | |||||||
location | {country, language} | — | Geo-targeting | |||||||
cost_controls | object | — | force_tier, max_tier, max_credits, prefer_cost, prefer_speed, fail_fast, time_budget (prefer_cost, prefer_speed, fail_fast also accepted at top level) | |||||||
embeddings | object | — | enabled, model, chunk_size, chunk_overlap (+$0.001/page) | |||||||
sync_policy | auto \ | wait_until_deadline | auto | Wait behaviour for long scrapes | ||||||
timeout, max_response_bytes, include_raw_html | number, number, boolean | 90, 5 MB, false | Limits and raw output | |||||||
estimate_first | boolean | false | Run a free cost estimate first |
Not exposed: source (dashboard tracking tag), sync (the tool is always synchronous), webhook_url (use alterlab_batch/alterlab_crawl webhooks). If a scrape outlives the ~85s synchronous window the tool returns a job_id; fetch it with alterlab_get_job.
alterlab_extract — Extract Structured DataExtract structured fields from HTML, text or markdown content using pre-built profiles or custom JSON Schema. Returns clean JSON — ready for databases, spreadsheets, or downstream processing.
"Extract the product name, price, and rating from this Amazon page"
| Parameter | Type | Default | Description | ||
|---|---|---|---|---|---|
content | string (max 500,000) | required | HTML, text or markdown you already have (this tool does not fetch a URL) | ||
content_type | html \ | text \ | markdown | html | Type of content |
extraction_profile / extraction_template | enum | — | Profile: auto, product, article, job_posting, faq, recipe, event, ecommerce_homepage, directory_listing | ||
extraction_schema | object | — | Custom JSON Schema for structured output | ||
extraction_prompt | string | — | Natural language extraction instructions | ||
extraction_provider / extraction_model | enum / string | — | BYOK LLM selection | ||
formats | enum[] | ["json"] | Output formats | ||
source_url, evidence | string, boolean | — | Context URL and provenance | ||
cache, cache_ttl | auto \ | skip \ | only, number | auto | Extraction result cache |
To scrape and extract in one step, use alterlab_scrape with extraction_schema.
Extraction profiles:
alterlab_screenshot — Screenshot Any PageTake a full-page screenshot of any URL. Returns a PNG image directly in the conversation — no URLs to copy, no files to download.
"Take a screenshot of our landing page at https://alterlab.io"
| Parameter | Type | Default | Description |
|---|---|---|---|
url | string | required | URL to screenshot |
wait_for | string | — | CSS selector to wait for before capture |
wait_until | enum | networkidle | networkidle, domcontentloaded, or load |
timeout | number | 90 | Timeout in seconds (1-300) |
use_proxy, proxy_country | boolean, string | — | Premium proxy and geo-targeting |
session_id, cookies | UUID, object | — | Screenshot pages behind a login |
location | {country, language} | — | Geo-targeting |
alterlab_estimate_cost — Estimate Before You ScrapeCheck how much a scrape will cost before running it. Returns the predicted tier, cost per request, and confidence level.
"How much would it cost to scrape linkedin.com?"
| Parameter | Type | Default | Description | |
|---|---|---|---|---|
url | string | required | URL to estimate | |
mode | enum | auto | Scraping mode | |
method | GET \ | POST | GET | POST costs 1.5x |
render_js | boolean \ | "auto" | false | Include JS rendering cost |
use_proxy, use_own_proxy | boolean | false | Include proxy cost / BYOP discount |
| `screen
只显示了开头部分;其余内容请在仓库中阅读