Lead Generation API
Build targeted prospect lists by extracting business information from public directories, company websites, and professional listings.
How It Works
Identify data sources
Target business directories, review sites, and public company listings relevant to your market.
Extract business data
Pull company names, addresses, phone numbers, and other publicly available contact information.
Enrich and qualify
Combine extracted data with your CRM to build qualified prospect lists for outreach campaigns.
Quick Start
curl -X POST https://alterlab.io/api/v1/scrape \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"url": "https://directory-example.com/businesses/category",
"extract": {
"business_name": "string",
"phone": "string",
"address": "string",
"website": "string"
}
}'Need an API key? — no credit card required.
Related Data Extraction Guides
Lead Generation for a Specific Site
Related Use Cases
Frequently Asked Questions
What kind of lead data can I extract?
You can extract any publicly displayed business information including company names, phone numbers, addresses, websites, ratings, and hours of operation from directories and public listings.
Is extracting public business data legal?
Extracting publicly available business information is generally permissible. Always review the terms of service for sites you access and ensure compliance with applicable laws in your jurisdiction.
Responsible Use
AlterLab is designed for extracting publicly available data. Always review the terms of service for any website you access, respect robots.txt directives, and ensure your use case complies with applicable laws in your jurisdiction.
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Pricing
From $0.0002/request. No subscriptions. Balance never expires.
Your first scrape.
Sixty seconds.
$1 free credit — up to 5,000 scrapes. No credit card.
Just a POST request.
No credit card required · $1 free credit, up to 5,000 scrapes · Balance never expires