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ma-browser

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MultiAgentsBrowser

ma-browser — your browser as the API, shared safely by many AI agents

Your browser is the API. No keys. No bots. No scrapers.

Node.js License

English · 中文

You're already logged into Twitter, Reddit, YouTube, Zhihu, Bilibili, LinkedIn, GitHub — ma-browser lets AI agents use that directly.

ma-browser site twitter/search "AI agent"       # search tweets
ma-browser site zhihu/hot                        # trending on Zhihu
ma-browser site arxiv/search "transformer"       # search papers
ma-browser site eastmoney/stock "茅台"            # real-time stock quote
ma-browser site boss/search "AI engineer"        # search jobs
ma-browser site wikipedia/summary "Python"       # Wikipedia summary
ma-browser site youtube/transcript VIDEO_ID      # full transcript
ma-browser site stackoverflow/search "async"     # search SO questions

103 commands across 36 platforms. All using your real browser's login state. Full list →

The idea

The internet was built for browsers. AI agents have been trying to access it through APIs — but 99% of websites don't offer one.

ma-browser flips this: instead of forcing websites to provide machine interfaces, let machines use the human interface directly. The adapter runs eval inside your browser tab, calls fetch() with your cookies, or invokes the page's own webpack modules. The website thinks it's you. Because it is you.

Playwright / Selenium

Scraping libs

ma-browser

Browser

Headless, isolated

No browser

Your real Chrome

Login state

None, must re-login

Cookie extraction

Already there

Anti-bot

Detected easily

Cat-and-mouse

Invisible — it IS the user

Complex auth

Can't replicate

Reverse engineer

Page handles it itself

Related MCP server: ApiTap

Quick Start

Install

npm install -g ma-browser

Use

ma-browser site update        # pull community adapters
ma-browser site recommend     # see which adapters match your browsing habits
ma-browser site zhihu/hot     # go

OpenClaw (no extension needed)

If you use OpenClaw, ma-browser runs directly through OpenClaw's built-in browser — no Chrome extension or daemon required:

ma-browser site reddit/hot --openclaw
ma-browser site xueqiu/hot-stock 5 --openclaw --jq '.items[] | {name, changePercent}'

Skill on ClawHub: ma-browser-openclaw

MCP (Claude Code / Cursor)

{
  "mcpServers": {
    "ma-browser": {
      "command": "npx",
      "args": ["-y", "ma-browser", "--mcp"]
    }
  }
}

36 platforms, 103 commands

Community-driven via bb-sites. One JS file per command.

Category

Platforms

Commands

Search

Google, Baidu, Bing, DuckDuckGo, Sogou WeChat

search

Social

Twitter/X, Reddit, Weibo, Xiaohongshu, Jike, LinkedIn, Hupu

search, feed, thread, user, notifications, hot

News

BBC, Reuters, 36kr, Toutiao, Eastmoney

headlines, search, newsflash, hot

Dev

GitHub, StackOverflow, HackerNews, CSDN, cnblogs, V2EX, Dev.to, npm, PyPI, arXiv

search, issues, repo, top, thread, package

Video

YouTube, Bilibili

search, video, transcript, popular, comments, feed

Entertainment

Douban, IMDb, Genius, Qidian

movie, search, top250

Finance

Xueqiu, Eastmoney, Yahoo Finance

stock, hot stocks, feed, watchlist, search

Jobs

BOSS Zhipin, LinkedIn

search, detail, profile

Knowledge

Wikipedia, Zhihu, Open Library

search, summary, hot, question

Shopping

SMZDM

search deals

Tools

Youdao, GSMArena, Product Hunt, Ctrip

translate, phone specs, trending products

10 minutes to add any website

ma-browser guide    # full tutorial

Tell your AI agent: "turn XX website into a CLI". It reads the guide, reverse-engineers the API with network --with-body, writes the adapter, tests it, and submits a PR. All autonomously.

Three tiers of adapter complexity:

Tier

Auth method

Example

Time

1

Cookie (fetch directly)

Reddit, GitHub, V2EX

~1 min

2

Bearer + CSRF token

Twitter, Zhihu

~3 min

3

Webpack injection / Pinia store

Twitter search, Xiaohongshu

~10 min

We tested this: 20 AI agents ran in parallel, each independently reverse-engineered a website and produced a working adapter. The marginal cost of adding a new website to the agent-accessible internet is approaching zero.

What this means for AI agents

Without ma-browser, an AI agent's world is: files + terminal + a few APIs with keys.

With ma-browser: files + terminal + the entire internet.

An agent can now, in under a minute:

# Cross-platform research on any topic
ma-browser site arxiv/search "retrieval augmented generation"
ma-browser site twitter/search "RAG"
ma-browser site github search rag-framework
ma-browser site stackoverflow/search "RAG implementation"
ma-browser site zhihu/search "RAG"
ma-browser site 36kr/newsflash

Six platforms, six dimensions, structured JSON. Faster and broader than any human researcher.

Also a full browser automation tool

ma-browser open https://example.com
ma-browser snapshot -i                # accessibility tree
ma-browser click @3                   # click element
ma-browser fill @5 "hello"            # fill input
ma-browser eval "document.title"      # run JS
ma-browser fetch URL --json           # authenticated fetch
ma-browser network requests --with-body --json  # capture traffic
ma-browser screenshot                 # take screenshot

All commands support --json output, --jq <expr> for inline filtering, and --tab <id> for concurrent multi-tab operations.

ma-browser site xueqiu/hot-stock 5 --jq '.items[] | {name, changePercent}'
# {"name":"云天化","changePercent":"2.08%"}
# {"name":"东芯股份","changePercent":"-7.60%"}

ma-browser site info xueqiu/stock   # view adapter args, example, domain

Daemon configuration

The daemon binds to 127.0.0.1:19824 by default. You can customize the host with --host:

ma-browser daemon --host 127.0.0.1    # IPv4 only (fix macOS IPv6 issues)
ma-browser daemon --host 0.0.0.0      # listen on all interfaces (for Tailscale / ZeroTier remote access)

Architecture

AI Agent (Claude Code, Codex, Cursor, etc.)
       │ CLI or MCP (stdio)
       ▼
ma-browser CLI ──HTTP──▶ Daemon ──CDP WebSocket──▶ Your Real Browser
                           │
                    ┌──────┴──────┐
                    │ Per-tab     │
                    │ event cache │
                    │ (network,   │
                    │  console,   │
                    │  errors)    │
                    └─────────────┘

Credits

MultiAgentsBrowser evolved from bb-browser by epiral (MIT). The full upstream commit history is preserved in this repository. Community site adapters still live at epiral/bb-sites.

License

MIT

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