Skyvern Architecture & Capabilities
Three Interaction Modes
| Mode | How It Works | Best For |
|---|---|---|
| AI Mode | Pure natural language — LLM + vision decides what to do | Unknown/dynamic websites |
| Selector Mode | Traditional Playwright CSS/XPath selectors | Known, stable pages |
| AI-Fallback | Tries selector first, falls back to AI if it fails | Production reliability |
Core AI Commands (Playwright SDK)
# Act — Perform an action described in natural language
await page.act("Fill in the email field with test@example.com")
await page.act("Click the submit button")
await page.act("Select 'Express' from the shipping dropdown")
# Extract — Pull structured data from the page
pricing = await page.extract("Get all pricing plans with features")
# Validate — Check if a condition is met
is_logged_in = await page.validate("Is the user currently logged in?")
# Prompt — Ask the LLM a question about the page
answer = await page.prompt("What payment methods does this site accept?")Visual Understanding
Skyvern uses computer vision to:
- Identify interactive elements (buttons, forms, dropdowns) by appearance
- Read and understand page layout without DOM access
- Handle CAPTCHAs and visual challenges
- Adapt to layout changes automatically
No-Code Workflow Builder
The UI at localhost:8080 provides:
┌─────────────────────────────────────┐
│ Workflow: Auto-fill Job Application │
├─────────────────────────────────────┤
│ Step 1: Navigate to job posting │
│ Step 2: Click "Apply Now" │
│ Step 3: Fill personal info │
│ Step 4: Upload resume (PDF) │
│ Step 5: Submit application │
│ Step 6: Extract confirmation # │
└─────────────────────────────────────┘Build multi-step workflows visually, then run them on schedule or via API.
Cloud Features
The managed cloud offering adds:
- Anti-bot detection — Bypasses common bot protection systems
- Proxy network — Automatic IP rotation across regions
- CAPTCHA solving — AI-powered CAPTCHA completion
- Parallel execution — Run hundreds of browser sessions simultaneously
- Session recording — Full video replay of every automation run
Real-World Use Cases
| Use Case | Example |
|---|---|
| Procurement | Auto-fill purchase orders across vendor portals |
| Insurance | Fill out quote forms on multiple carrier sites |
| HR | Submit job applications across multiple boards |
| Research | Extract data from government and financial sites |
| Testing | E2E testing that adapts to UI changes |
FAQ
Q: What is Skyvern? A: Skyvern is an AI browser automation platform with 21,000+ GitHub stars that uses LLMs and computer vision to automate any website without brittle selectors, offering a Python/TypeScript SDK, no-code UI, and managed cloud.
Q: How is Skyvern different from Stagehand or Browser Use? A: Skyvern uniquely combines computer vision with LLMs for visual page understanding, offers a no-code workflow builder, and provides a managed cloud with anti-bot handling. Stagehand is a TypeScript-first library; Browser Use is a Python agent framework. Skyvern is best for enterprise automation at scale.
Q: Is Skyvern free? A: The open-source version (AGPL-3.0) is free to self-host. Skyvern Cloud offers a free tier with paid plans for production scale.