Search companies and contacts, enrich records, build audiences, and power AI agents with ZoomInfo APIs programatically.
Start Building
The steps below will get you up and running.
| Steps | Descriptions |
|---|---|
| Create an Application | ZoomInfo uses OAuth 2.0 for secure API authentication. Create a Standard or Partner application to get started. |
| Authenticate | Building on behalf of a signed-in user, or as an approved partner? Authenticate with the Authorization Code Flow (PKCE). Building server-to-server? Authenticate with the Client Credentials Flow. |
| Test your access | Make your first API request with Test API Access. |
| Review limits | Review rate limits, quotas, and X-RateLimit-* headers to build reliable integrations and understand guardrails. |
| Handle errors | Review status codes and errors for failed requests. |
| Bring your own stack | Download the OpenAPI specification to import endpoints directly into Postman or another API client. |
Now you're ready to dig into the endpoints.
Browse endpoints
| I want to... | Start here |
|---|---|
| Search, enrich, and discover companies and contacts using firmographic, technographic, and retrieve email address, contact numbers and org-chart data. | Data API |
| Search and enrich topic-level buying intent signals, news and scoops for companies. | Data API |
| Build and manage lists for activation across your GTM stack. | Audience API |
| Run and monitor Agent Teams, and subscribe to webhooks and events for async job completion. | Agents API |
| Build business context with buyer personas, ICPs, competitors, and products and services to discover similar companies and recommended contacts. | Context API |