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Sales Intelligence
BuiltWith
Technology profiling API - find what tech websites are built with.
Key Features
Technology Stack Detection
Competitive Intelligence
Lead Enrichment
Real-time Monitoring
How to use this tool
"Claude, use BuiltWith API to find all companies using Shopify in the US and enrich them with contact information."
About BuiltWith
BuiltWith is the leading technology lookup API that tells you what technologies any website uses. It provides Domain API for current and historical tech data, Lists API for finding sites using specific technologies, Relationships API for linked websites, Keywords API for keyword-based searches, and a Live Feed API for real-time WebSocket detections. With AI agent support and MCP server available, BuiltWith is essential for sales prospecting, competitive intelligence, and lead enrichment.
Use BuiltWith for
Technical Details
API Type
REST
Authentication
API Key
Pricing Tier
Free Tier Available
SDK Languages
.NET, Node.js
Webhooks
Yes
Frequently Asked Questions
What does BuiltWith do?
BuiltWith is a sales intelligence tool that provides Technology profiling API - find what tech websites are built with.
Is BuiltWith API free?
Yes, BuiltWith offers a free tier for its API, making it accessible for testing and small-scale projects.
What are the best alternatives to BuiltWith?
Based on features and use cases, the top alternatives to BuiltWith are SimilarTech, WebTrackly, Wappalyzer and Hunter.io..
Compare BuiltWith
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The standard for finding and verifying professional email addresses.
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