Hunter.io

Hunter.io is the leading platform for finding and verifying professional email addresses. Credit-based system for Email Finder (1 credit), Email Verifier (0.5 credits), and Bulk Domain Search (1 credit per 10 emails). Domain Search finds all public emails for a company domain with names, titles, and confidence scores. Email Finder locates specific contacts using pattern recognition and public data. Email Verifier validates deliverability (syntax, domain, MX records, SMTP mailbox), categorizing as valid/invalid/accept-all/risky. Detects disposable email domains. AI Writing Assistant generates personalized cold email content. Cold email sequences with scheduling, follow-ups, open/click tracking. Connect multiple email accounts per plan. Spam folder avoidance optimization. Advanced Discover B2B database filters. Lead Enrichment on Starter+ plans. CRM integration via native connectors, Zapier, and API. Unlimited team members on all plans. 30% discount for annual billing (credits upfront for the year). Free: 50 credits/mo, 1 email account, 500 recipients/sequence. Starter $49/mo ($34 annual): 2,000 credits, 3 accounts, 2,500 recipients, auto-verification, lead enrichment. Growth $149/mo ($104 annual): 10,000 credits, 10 accounts, 5,000 recipients. Scale $299/mo ($209 annual): 25,000 credits, 20 accounts, 15,000 recipients. Enterprise: custom. Additional credit packs from $10 (last 3 months).