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Website Categorization API
What Website Categorization API is
Website Categorization API is a paid service for classifying websites in real time and supplying a downloadable database of up to 120 million domains. Its API returns more than 15 data fields per request, with stated response times below 100 milliseconds. Supported taxonomies include IAB v2 and v3, IPTC NewsCodes, Google Shopping, Shopify, Amazon, eBay, and web content filtering. Enrichment options cover sentiment, personas, topics, keywords, entities, and competitors. API plans list phishing-domain and malware detection. The domain database can be delivered in CSV, JSON, SQLite, and other enterprise formats under a perpetual license, with optional annual refreshes. Documentation gives HTTPS POST examples for Python, JavaScript, Ruby, and C#. API and web access are available. Plans start at $99 a month for 10,000 API credits or MCP lookups. Purchased credits require an active subscription and expire after 12 months.
Who it suits
It suits teams needing website classification, enrichment, filtering, or domain data through an API or downloadable database. The integration examples support Python, JavaScript, Ruby, and C# developers.
What it does well
- Real-time responses under 100 milliseconds
- Database covers up to 120 million domains
- Supports multiple industry taxonomies
- Enrichment includes sentiment and entities
- Examples provided for four programming languages
What to know first
- No free plan
- Purchased credits require active subscription
- Credits expire after 12 months
- Each API call consumes credits
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Business Plan | $1997 per month · 300,000 API credits or MCP lookups/month | $1,997 a month |
| Pro Plus Plan | $249 per month · 25,000 API credits or MCP lookups/month | $249 a month |
| Enterprise 1M Plan | $3,999 per month · 1,100,000 API credits or MCP lookups/month | $3,999 a month |
| Advanced Plan | $499 per month · 50,000 API credits or MCP lookups/month | $499 a month |
| Pro Plan | $99 per month · 10,000 API credits or MCP lookups/month | $99 a month |
| Advanced Plus Plan | $999 per month · 100,000 API credits or MCP lookups/month | $999 a month |
| Enterprise | Contact Us; 1M+ API credits/month · 1M+ API credits or MCP lookups/month | On request |
As websitecategorizationapi.com lists them, read 9 Oct 2026. The maker's own page has the final word.
Verdict
Website Categorization API combines real-time classification with a large downloadable domain database and many taxonomy choices. Its paid credit model and subscription requirement should be considered before implementation.
Facts from Website Categorization API's own pages
- API integrations
- The API documentation provides example integrations in Python, JavaScript, Ruby, and C# using HTTPS POST requests. · websitecategorizationapi.com, 9 Oct 2026
- API response
- The homepage describes real-time API categorization with 15+ data fields returned per request and response times under 100 ms. · websitecategorizationapi.com, 9 Oct 2026
- Credit limits
- Each API call costs one credit by default; standard enrichment adds one credit, advanced enrichment adds three, and several specialized analyses cost four credits per call. · websitecategorizationapi.com, 9 Oct 2026
- Credit restriction
- An active monthly subscription is required to use purchased credits, and purchased credits expire 12 months after purchase. · websitecategorizationapi.com, 9 Oct 2026
- Database formats
- The 120-million-domain database is available in CSV, JSON, SQLite, and other enterprise formats under a perpetual license with optional annual refreshes. · websitecategorizationapi.com, 9 Oct 2026
- Demo
- The site offers a demo that can be tried without a credit card. · websitecategorizationapi.com, 9 Oct 2026
- Enrichment
- Its listed enrichment includes sentiment, personas, topics, keywords, entities, and competitors. · websitecategorizationapi.com, 9 Oct 2026
- Headquarters
- Munich, Germany · websitecategorizationapi.com, 28 Sept 2026
- Maker
- The site identifies Alpha Quantum at Franz-Joseph-Str. 11, 80801 Munich, Germany, as the provider. · websitecategorizationapi.com, 9 Oct 2026
- Purpose
- The service classifies websites in real time and offers a downloadable database of up to 120 million domains. · websitecategorizationapi.com, 9 Oct 2026
- Security features
- API plans list phishing-domain and malware detection, while the platform also lists web filtering categorization. · websitecategorizationapi.com, 9 Oct 2026
- Support
- The pricing page says all API plans include premium support and identifies priority technical support and integration assistance for enterprise customers. · websitecategorizationapi.com, 9 Oct 2026
- Taxonomies
- It supports IAB v2 and v3, IPTC NewsCodes, Google Shopping, Shopify, Amazon, eBay, and web content filtering taxonomies. · websitecategorizationapi.com, 9 Oct 2026
Where Website Categorization API stands on Freedom251
- Technographic Data Software#30 of 31