- Guides — Authentication, rate limiting, error handling, and integration patterns to get you up and running.
- API Reference — Full endpoint documentation with request/response schemas, parameter descriptions, and interactive console.
- Legacy v1 API — v1 is our legacy API and will be sunset on September 1, 2026. Existing integrations continue to work until then, but new integrations should use v2.
- AI Agents & Copilots — Give your AI agents real-time access to company intelligence for sales copilots, research agents, and lead scoring systems.
- MCP Compatible — Works with the Model Context Protocol — expose company data as a tool any MCP-compatible agent can call directly.
- On-Demand Enrichment — Look up company data at the point of need: when a lead comes in, a rep preps for a call, or your app needs fresh context.
- Batch Processing — Enrich up to 25 companies per request. Rate limited at 25 requests per second — plenty for real-time and batch workloads.
| Data | Description |
|---|---|
| Firmographics | Company name, domain, location, industry, revenue, employee count, and HG rankings |
| Technographics | Technology installations including products, vendors, usage intensity, and install dates |
| IT Spend | Spending estimates by technology category with detailed category breakdowns |
| Functional Area Intelligence | Department-level technology usage by location, with decision maker and influencer job titles |
| Corporate Hierarchy | Full company tree — global HQ, parents, and subsidiaries |
v2 was redesigned from the ground up to be simpler, faster, and more flexible.
| v1 | v2 | |
|---|---|---|
| Get company data | Call separate endpoints for firmographics, installs, and spend | One call to /companies/enrich returns everything you need |
| Find a company | HG ID only | HG ID or domain like walmart.com |
| Batch enrichment | One company at a time | Up to 25 companies per request |
| Manage your keys | Ask your CSM | Self-serve from our new platform |
| Track usage | Contact your account team | Self-serve credit usage dashboard |
Already on v1? Your integration keeps working until September 1, 2026, when v1 will be sunset. Migrating is straightforward: consolidate your calls into a single enrichment request and generate a new API key from the admin portal. See the v1 API reference.
Have questions, feedback, or need help? Reach out to us at customersupport@hginsights.com.