WebsiteData API Documentation

The WebsiteData API gives you programmatic access to domain intelligence, technology adoption data, and website metadata for millions of websites. Search, look up, and analyze domains and technologies at scale.

Quickstart Explore Domains API

Getting started

To get started, generate an API key from your WebsiteData dashboard, then read about how to authenticate and make requests to the available endpoints. All API requests use Bearer token authentication and return JSON responses.

Learn about authentication

Guides

Authentication

Learn how to authenticate your API requests using Bearer tokens.

Pagination

Understand how to work with paginated responses using cursor-based pagination.

Errors

Read about the different HTTP status codes and error types returned by the API.

Quickstart

Get up and running with the WebsiteData API in minutes.

MCP Server

Connect AI assistants like Claude and Cursor to WebsiteData via MCP.

Domains

Look up individual domains, search across millions of websites, or fetch domains in bulk.

Technologies

Search and retrieve technology adoption data including install counts and trends.

Historical Data

Access point-in-time snapshots and stream full historical domain datasets.