Developer Tools

builtwith.com

Provides API lookups for web technologies, metadata, and relationships by domain.

1 endpoint25 known toolsCached registry data

ENDPOINT 1

https://api.builtwith.com/mcp

No auth detected

Known tools 25

domain-lookup

Returns the live web technologies used on the root domain name.

domain-api

Domain API JSON lookup for technology and metadata by domain.

domain-api-json

Raw Domain API JSON lookup for technology and metadata by domain.

change-api

Change API JSON lookup for technology additions and removals by domain.

relationships-api

Relationships API JSON lookup for related websites by domain.

free-api

Free API JSON lookup for category/group counts by domain.

company-to-url

Company to URL API JSON lookup for domains from a company name.

tags-api

Tags API JSON lookup for related domains from IP or attributes.

recommendations-api

Recommendations API JSON lookup for technology recommendations by domain.

redirects-api

Redirects API JSON lookup for live and historical redirects by domain.

keywords-api

Keywords API JSON lookup for keyword data by domain.

keywords-search-api

Keyword Search API — find websites containing a specific keyword.

trends-api

Trends API JSON lookup for technology trend data.

product-api

Product API JSON lookup for ecommerce product searches.

trust-api

Trust API JSON lookup for trust scoring by domain.

vat-api

VAT API JSON lookup for VAT, GST, CNPJ, ABN, and other publicly displayed company registration numbers associated with websites.

vat-types-api

List every company registration type that the VAT API may return, including its code, friendly name, and description.

whoami-api

WhoAmI API JSON lookup for account limits, credit costs, privacy flags, max batch sizes, and endpoint inventory.

usage-api

Usage API JSON lookup for current credit balance (used, purchased, remaining).

payment-balance

Check your BuiltWith Agent Payment API credit balance.

payment-config

Retrieve your BuiltWith Agent Payment API configuration.

payment-purchase

Purchase BuiltWith API credits using your saved Stripe payment method.

vector-api

Search BuiltWith technologies and categories by text query using vector similarity.

ask-api

Ask API lookup for natural language website list queries.

ask-api-json

Raw Ask API JSON lookup for app/internal use.