Add BrowseCLI in a Vercel Sandbox example

[shrey150]

What

Adds solutions/browsecli-vercel-sandbox — an example that runs the browse CLI inside a Vercel Sandbox (an ephemeral Firecracker microVM) and connects out over CDP to a Verified Browserbase browser.

A vanilla microVM has a datacenter IP and no anti-bot hardening, so an in-sandbox browser gets blocked on the real web. Here the browser lives on Browserbase instead — residential IP, Verified-browser anti-bot fingerprinting, and server-side CAPTCHA / challenge solving — so the sandbox can reach protected, bot-defended sites that an in-sandbox datacenter-IP Chrome gets walled on.

Vercel Sandbox (node24 + `browse` CLI)  ──CDP/wss──▶  Browserbase Verified browser

Contents

• sandbox.ts — standalone, directly-runnable script (Sandbox.create({ runtime: 'node24' }) → npm i -g browse → run the demo, streaming stdout)
• app/api/run/route.ts — optional Next.js (App Router) POST /api/run variant
• browsecli-demo.sh — creates a Verified session, opens a Cloudflare-protected page over CDP, and asserts real content
• package.json / tsconfig.json / .env.example / .gitignore

Verification

Verified end-to-end on a real Vercel Sandbox: the microVM installs browse, opens a Verified Browserbase session, loads a Cloudflare-protected page over CDP, and the demo asserts real page content (RESULT: ✅ PASS).

Note: Verified browsers/sessions (residential IP + automatic CAPTCHA solving) require a Browserbase Scale plan — see https://www.browserbase.com/pricing. On lower plans, drop --verified.

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This PR is intentionally a draft. Opening for early visibility / format review before marking ready.

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​@​vercel/​sandbox@​2.2.1

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