Hunter.io

Domain email finder and verification API trusted for discovering professional contact patterns and email deliverability.

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Hunter.io is an autonomous B2B waterfall data enrichment platform starting at $0/month. It achieves an Autonomous Execution Score of 67/100 and integrates natively with HubSpot, Salesforce, Pipedrive. Its key operational strength is industry-standard domain search showing public email patterns, while primary tradeoffs include does not provide direct mobile phone numbers.

Autonomy: 67/100
Value: 5.05
From: $0/mo
Pricing: freemium
Updated: Nov 2026

Strengths

Industry-standard domain search showing public email patterns
Fast bulk verification API
Free plan with recurring monthly searches

Tradeoffs

Does not provide direct mobile phone numbers
Less context on tech stack firmographics

Integrations

HubSpot
Salesforce
Pipedrive
Zapier
API

How this score is built

Autonomy base: (100 − 35 human effort) × 0.8
Integrations: +15
Setup friction: −0
Value inputs: 21 features, 4.7 rating

Human effort, feature count and rating are editorial estimates, not test results.

Evidence

Price checked Nov 2026. View source

HubSpot, native. View source

Salesforce, native. View source

Pricing tiers

Free

$0 /month

50 credits per month
Basic Discover B2B database filters
AI Assistant in Discover
Connect 1 email account
500 recipients per sequence
Unlimited team members

Starter

$49 /month

2,000 credits per month
Auto-verification & Lead enrichment
Advanced Discover filters
Connect 3 email accounts
AI Writing Assistant
Unlimited team members

Growth

$149 /month

10,000 credits per month
Auto-verification & Lead enrichment
Connect 10 email accounts
AI Writing Assistant
Priority support
Unlimited team members

Scale

$299 /month

25,000 credits per month
Auto-verification & Lead enrichment
Connect 20 email accounts
AI Writing Assistant
Priority support
Unlimited team members

Hunter.io alternatives

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Cognism Premium international B2B intelligence with phone-verified Diamond Data and GDPR compliance.	72	—	Contact sales	Compare ↗
ZoomInfo Enterprise go-to-market data platform with comprehensive B2B intelligence, org charts, and intent signals.	71	—	Contact sales	Compare ↗
Findymail High-accuracy B2B email finder and scraper with proprietary catch-all email cleaning and zero-bounce verification.	71	3.75	$99/mo	Compare ↗
LeadMagic B2B waterfall data provider delivering verified mobile numbers and real-time validated business emails.	68	3.75	$99/mo	Compare ↗
FullEnrich Waterfall contact enrichment finding verified European and US business emails and direct dials.	68	3.82	$55/mo	Compare ↗

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