Clearbit (Breeze)
Real-time company and person enrichment API by HubSpot.
ZoomInfo
The comprehensive B2B database and sales intelligence platform.
API & MCP Analysis
For AI-native operators choosing between Clearbit (Breeze) and ZoomInfo, the decision comes down to API accessibility and how easily your agent can interface with each tool.
ZoomInfo has the edge here with an official MCP server, letting you connect it directly to Claude or Cursor. Clearbit (Breeze) requires a REST API integration, which means your agent needs the API docs to build the connection.
"Claude, use Clearbit API to enrich this list of domains with their employee count and industry."
"Claude, use the ZoomInfo MCP server to search for 50 VPs of Sales at Series B SaaS companies in California and return their verified emails."
Support & Guidance