Web Scraping API with Proxy Rotation
AlterLab is a web scraping API with built-in proxy rotation across 195+ countries. Every request automatically routes through datacenter or residential proxies — no pool management, no IP banning, no configuration required. Starts at $0.0002/request with 5,000 free requests at signup.
Simple API, Powerful Results
Get started in minutes with our intuitive API. One request gives you structured data, screenshots, PDFs, and more. No browser management, no infrastructure headaches.
Multi-Format Output
Markdown, JSON, HTML, text
Adaptive Rendering
JS, SPAs, shadow DOM
3 Lines to Integrate
Any language, any stack
Up to 5,000 free scrapes included. No credit card required.
How Does Proxy Rotation Work?
AlterLab's 5-tier escalation system automatically selects the right proxy type for each website.
| Tier | Proxy Type | Price | Coverage | Best For |
|---|---|---|---|---|
| Tier 1 | Datacenter Proxies | $0.0002/req | Global datacenters | Static websites, public APIs, news sites |
| Tier 2 | Enhanced Datacenter | $0.0003/req | Global datacenters + enhanced headers | E-commerce, job boards, directories |
| Tier 3 | Residential Proxies | $0.002/req | 195+ countries, city-level | Sites that block datacenter IPs |
| Tier 4 | Full Browser + Residential | $0.004/req | 195+ countries + full browser rendering | JavaScript-heavy sites, dynamic content |
Proxy Features Included in Every Request
No configuration required — proxy features work automatically on every API call.
Automatic IP Rotation
Each request uses a fresh IP address. AlterLab cycles through proxy pools automatically, eliminating manual IP management.
195+ Country Coverage
Route requests through residential proxies in 195+ countries and major cities. Pass 'country': 'US' to target a specific location.
Auto-Escalation on Block
When a website blocks a datacenter IP, AlterLab automatically retries with a residential proxy — within the same request.
Residential & Mobile IPs
Tier 3+ requests use real residential and mobile IP addresses from real devices — the same addresses real users browse from.
No Pool Management
No proxy list to maintain, no ban detection to code, no IP rotation logic to write. AlterLab handles all of it at the infrastructure level.
Session Stickiness
Use session IDs to maintain the same IP address across multiple requests — useful for multi-step workflows and paginated scraping.
Pricing vs. Managing Your Own Proxies
Compare the cost of AlterLab against building and maintaining a dedicated proxy infrastructure.
Why Teams Switch to AlterLab
Smart routing, no subscriptions, balance that never expires
| Feature | AlterLab You are here | ScraperAPI | Bright Data | Firecrawl |
|---|---|---|---|---|
Avg cost (real workload) Smart routing vs flat rate | ~$0.001 | $0.00049/credit | $0.0015 | $0.0063 |
Simple scrape Basic HTTP request | $0.0002 | $0.00049 | $0.0015 | $0.0063 |
JS rendering Full browser render | $0.004 | $0.0049 | $0.0015 | $0.0063 |
Free tier Free requests to start | Up to 5,000 scrapes | 5,000 credits | None | 500 scrapes |
Minimum Smallest purchase | $10 one-time | $49/month | $0 (PAYG) / $499/mo (subscription) | $19/month |
Balance expires? Does unused balance expire | Never | Monthly | Never (prepaid) / Monthly (subscription) | Monthly |
CAPTCHA solving Built-in CAPTCHA bypass | $0.02/solve | Extra cost | Extra cost | Not available |
Avg cost based on typical content/SEO workload (75% simple, 25% protected). Competitor prices from public pricing pages, March 2026.
Frequently Asked Questions
Anti-Bot Handling Guides
How to Handle Bot Protection Challenges
All 6 detection layers explained: TLS fingerprinting, JS challenges, Turnstile, and more.
How to Handle ML-Based Bot Protection
ML scoring, sensor data, and cookie trust systems explained.
How to Handle Advanced Anti-Bot Systems
BotGuard sensor data collection, cookie trust, and behavioral ML detection guide.
Bot Protection Comparison: Challenge Types and Detection Methods
Side-by-side comparison: detection mechanisms, challenge complexity, and cost per tier.
Your first scrape.
Sixty seconds.
$1 free balance. No credit card. No SDK.
Just a POST request.
No credit card required · Up to 5,000 free scrapes · Balance never expire