ToolPicker
Hunter.io

Hunter.io

9/100

Domain search & email finder with a generous free tier.

hunter.io

Agent-readiness

auth.md
MCP server
llms.txt
OpenAPI
Auth: api_key

Rankings

Overview

Hunter.io is a B2B email-finding, verification, and cold-outreach platform for prospecting teams.

Best for: SMBs, startups, agencies, recruiters, and outbound sales/marketing teams that need accurate business email discovery and verification without paying per seat.

Pricing

Free
$0/mo
Starter
$49/mo monthly or $34/mo billed yearly
Growth
$149/mo monthly or $104/mo billed yearly
Scale
$299/mo monthly or $209/mo billed yearly
Enterprise
Custom
Data Platform
Usage/yearly

Features

  • Domain Search for company email addresses
  • Email Finder by person and company/domain
  • Email Verifier with confidence scoring
  • Bulk Domain Search, Bulk Email Finder, and Bulk Email Verifier
  • Discover B2B company database with filters and AI Assistant
  • Signals for intent-style prospect monitoring
  • Hunter Sequences for cold email sending, follow-ups, tracking, A/B testing, and reporting
  • Saved leads, lead enrichment, CSV export, and team usage controls
  • REST API for discover, domain search, email finder, verifier, leads, and sequences
  • Browser extensions and Google Sheets add-on

Pros

  • Transparent pricing with a usable free plan and unlimited seats
  • Strong core email discovery and verification workflows
  • Public-source transparency and web-sourced data approach
  • Good fit for both manual prospecting and API/bulk enrichment

Cons

  • Email-focused; not a full phone-number/direct-dial sales intelligence suite
  • Credit limits can be restrictive for high-volume outbound teams
  • Data Platform is yearly/API-bulk focused and excludes Sequences, Signals, and Discover
  • Monthly plan credits expire at the end of the billing cycle

Sources