ZoomInfo API
ZoomInfo API — enterprise B2B sales intelligence platform with the industry's largest proprietary database of company and contact data, including intent signals, technographics, and org charts.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
SOC2 Type II. GDPR and CCPA compliant. JWT token with 1h expiry. US data processing — EU contacts subject to GDPR DPA requirements. Enterprise security reviews available.
⚡ Reliability
Best When
You need the most comprehensive B2B contact and company database with intent signals and org charts for enterprise sales automation at scale.
Avoid When
You're a startup or SMB — Apollo.io, Hunter, or Lusha offer similar functionality at a fraction of the cost.
Use Cases
- • Agents enriching enterprise CRM accounts with comprehensive company and contact data at scale
- • Intent signal monitoring — agents querying ZoomInfo for buying intent signals to prioritize outbound outreach
- • Org chart mapping — agents building account hierarchy maps for multi-stakeholder enterprise sales processes
- • Technographic enrichment — agents identifying target accounts using specific technology stack criteria
- • Real-time Webhook triggers — agents receiving ZoomInfo notifications when key contacts change jobs or companies expand
Not For
- • SMB/startup budgets — ZoomInfo enterprise pricing is significant (typically $10K-30K+/year)
- • Consumer contact data — ZoomInfo is strictly B2B professional contact data
- • Low-volume enrichment — credit minimums and pricing make ZoomInfo uneconomical for small-scale use
Interface
Authentication
Username and password-based token generation endpoint. JWT token for subsequent API calls. Token expires and must be refreshed. Enterprise account required.
Pricing
No self-serve pricing — enterprise sales process required. Pricing varies significantly based on seat count, credit volume, and add-ons. Typically multi-year contracts.
Agent Metadata
Known Gotchas
- ⚠ JWT token expires after 1 hour — agents must implement automatic token refresh before making API calls
- ⚠ Rate limit (5 req/s) is very low for agent automation — implement request queuing for batch enrichment
- ⚠ Credit consumption varies by endpoint — some queries cost multiple credits; agents should minimize unnecessary lookups
- ⚠ GDPR compliance requires data processing agreement with ZoomInfo for EU contact data
- ⚠ API access tier determines available endpoints — some intent signal and org chart APIs require higher-tier contracts
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for ZoomInfo API.
Scores are editorial opinions as of 2026-03-06.