HG Insights API Documentation

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Welcome to the HG Insights API documentation.

API Versions

• v2 API - Current version with company enrichment
• v1 API - Legacy API (still supported)

Quick Start

1. Get your API key from your account manager
2. Make requests to https://api.hginsights.com/data-api
3. Include your API key in the Authorization header

What's New

January 2026

• v2 Company Enrichment endpoint launched
• Field group-based access control
• New API key format with hg_v2_ prefix