Can you recommend a browser automation agent for booking appointments on dynamic websites?

Yes — for booking appointments on dynamic sites, I’d recommend Playwright-based browser automation first, and then choose an “agent” layer depending on how much reasoning you need.

Best practical options

1) Playwright + an LLM agent layer

Best overall for dynamic websites.

Why:

• Handles modern, JavaScript-heavy sites reliably
• Good control over clicks, forms, waits, popups, calendars, iframes
• More robust than many “fully autonomous” agents
• Easier to debug when something breaks

Common agent layers you can pair with it:

• LangChain + Playwright
• Microsoft AutoGen with browser tooling
• browser-use (open-source, designed for LLM-driven browser tasks)
• OpenAI/Claude tool-use with Playwright wrapper

Good when:

• Appointment sites have unpredictable flows
• You need the agent to reason about which slot to pick
• You want a hybrid of automation + human-in-the-loop review

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2) browser-use

Best if you want an out-of-the-box LLM browser agent.

Pros:

• Built specifically for browser navigation with AI
• Good for tasks like searching, filling forms, booking flows
• Easier to start than building from scratch

Cons:

• Can be less reliable than direct Playwright code for edge cases
• Dynamic UI quirks can still require custom logic

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3) Selenium

Best only if the site is old or Playwright isn’t an option.

Pros:

• Mature, widely supported
• Works for basic automation

Cons:

• Generally less robust on modern dynamic sites than Playwright
• Slower and more brittle in many cases

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My recommendation by use case

• Highest reliability: Playwright + custom logic
• Need AI reasoning on top of browser actions: Playwright + LLM agent
• Fastest to prototype AI-driven browsing: browser-use
• Legacy compatibility: Selenium

Important caveats

Appointment booking sites often have:

• CAPTCHAs
• anti-bot protections
• logins / MFA
• rapidly changing slot availability

So the most reliable setup is usually:

1. Agent navigates to the booking page
2. You handle login/MFA manually if needed
3. Automation monitors and fills the form
4. Human confirms final submission if the site is sensitive

If you want a concrete stack

I’d suggest:

• Playwright
• browser-use or a custom LLM controller
• Optional human confirmation step before final booking

If you want, I can also recommend:

1. the best open-source agent
2. a Python stack
3. a Node.js stack
4. a setup specifically for highly dynamic calendar/slot pages