ZoomInfo API: Full Guide, Features & The Best Alternative (Lead411)

Unlock powerful B2B insights using ZoomInfo’s API — and discover why Lead411 is the better, smarter alternative for 2025.

What is the Zoominfo API?
Key Features of Zoominfo API
Zoominfo API Rate Limits & Access
Whats a better alternative to Zoominfo’s API?
FAQ’s about Zoominfo’s API

Talk to an API Expert (Ask about Unlimited Data)

What Is the ZoomInfo API?

The ZoomInfo API is a cloud-based data platform that lets businesses embed over 200 million B2B contacts and 7 million company records directly into CRMs, marketing tools, and workflows.

Sales, marketing, and recruiting teams use it to enrich leads, personalize outreach, automate tasks, and power real-time data strategies.

Key Features of ZoomInfo API

Standard APIs

Search API: Find contacts or companies using custom filters like title, location, industry.
Enrich API: Fill in gaps in your CRM with full ZoomInfo profiles.
Lookup API: Define inputs and outputs to streamline jobs.
Usage API: Monitor your API call usage and limits.

Scaling APIs

Enrich and update millions of records with parallel processing.
Automate workflows like lead scoring, segmentation, and campaign prep.
Ideal for enterprise data operations.

WebSights API

Reveal companies behind anonymous website visits.
Personalize your web content by firmographics.
Integrates with Google Analytics for advanced traffic insights.

Compliance API

Stay compliant with GDPR, CCPA and more.
Automate data removal and opt-out tracking.
Protect customer privacy at scale.

ZoomInfo API Limits & Access

Standard rate: 1,500 requests per minute
Bulk processing: Use Bulk APIs for asynchronous jobs
Webhooks: Real-time syncing without major limits
Authentication: Login via credentials or API key from your admin dashboard

Tip: Use Postman to test endpoints without writing code.

The Best ZoomInfo Alternative: Lead411

Looking for a better value than ZoomInfo? Lead411 delivers verified B2B data, real-time enrichment, and flexible pricing models — all without sacrificing quality.

Why Choose Lead411?

Feature	ZoomInfo	Lead411
Real-Time Data	✔️	✔️ (96%+ verified)
Cost-Effective API	❌ Metered Credits	✔️ Verified-Only Payments
Free Trial	Limited	✔️ Full Trial
CRM Integrations	✔️	✔️ (Salesforce, HubSpot, more)
Intent Data	❌	✔️ Powered by Bombora

FAQs About the ZoomInfo API

Does ZoomInfo have an open API?

No, only authenticated subscribers can access the ZoomInfo API via login credentials or API keys.

Is there a free version of ZoomInfo?

Yes, ZoomInfo Lite offers limited access in exchange for contact-sharing and a desktop app install.

Can I integrate it with my CRM?

Yes, ZoomInfo integrates with major CRMs like Salesforce and HubSpot.

What’s the difference between ZoomInfo and Lead411?

Lead411 provides similar features at a lower cost with better data accuracy and intent signals. It’s a more scalable, budget-friendly API option.

The Run Down

The ZoomInfo API is a robust data engine, but if you’re looking for transparent pricing, real-time verified data, and high ROI, consider switching to Lead411.

The Highest Quality Data at your Fingertips

Number of Contacts

Number of Companies Worldwide

Searchable Technologies

Growth Intent Trigger Topics

Why Choose Lead411?

Our sales intelligence tracks key company events that indicate spending and growth. Sell into companies at the perfect time and get to your R.O.I quicker. Access Unlimited B2B Data with zero limitations.

Quality Data

The Only Provider With Triple Verified Emails

Email Verification

The email addresses in our database are verified using SMTP, human-verified, and email open validation.

Live A.I. Research

If an email address isn’t currently in our database, use our A.I. based research tool on the fly to find the best possible match.

Re-Verification Schedule

We have an unmatched email verification schedule compared to the competition; all of our emails are re-verified every 3-6 months.

Phone Numbers

Double Verified Direct Dials

Phone prospecting is one of the more labor-intensive activities in the space. Dialing to numbers that are out of date, general information lines or incorrect is not only ineffective, but it’s also incredibly frustrating. You can change all of that. Be more successful with Lead411’s double verified b2b direct dials.

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