All companies

Overview

ZoomInfo is a go-to-market intelligence platform with data on more than 100 million companies and 500 million professionals, plus buying and business signals such as intent topics, news and scoops. Its MCP server, the `gtm` CLI and the GTM API search and enrich companies and contacts, find companies researching a topic and run AI account research, all on one backend with shared credits. Every way in needs a ZoomInfo license (GTM.ai self-serve or Enterprise), and the plan decides which data, endpoints and credits are available. The MCP server and the CLI sign in with OAuth in a browser. The API takes an OAuth 2.0 access token from an app created in the ZoomInfo Developer Portal, with the client-credentials flow for server-to-server calls. Searches are free; enriching a record costs one credit the first time in any 12 months.