Sales Intelligence

Hunter.io

The standard for finding and verifying professional email addresses.

Important Links

Documentation ↗Website ↗Pricing ↗

Key Features

Email Finder

Email Verifier

Domain Search

Lead Enrichment

B2B Data Enrichment

How to use this tool

"Claude, use Hunter API to find the professional email for the CEO of Stripe."

Technical Feature Analysis

Hunter.io is built for AI-first teams, specifically for workflows where you want an AI agent to handle your Sales Intelligence tasks. Instead of manual data entry, Hunter.io lets your AI "see" and "act" on your data directly through its REST.

Hunter.io provides a robust REST API for domain search, email finding, and email verification. It is a core tool for prospecting, allowing AI agents to find the right contacts at any company just by their domain. Hunter also offers an official MCP server, enabling AI assistants to perform real-time contact discovery and verification via chat.

The biggest win with Hunter.io is the ability to move from **Chat-to-Action**. By connecting it to your AI agent, you can automate Email Finder, Email Verifier, Domain Search without having to build a custom tech stack or hire a developer.

Direct Agent Workflow for Hunter.io

• Connect: Give your Hunter.io API Key to Claude Code, Cowork, or your favorite AI agent.

• Automate: Your agent handles Email Finder and Email Verifier directly.

• Execute: No extra software or middleware required for Sales Intelligence automation.

Use Hunter.io for

AI Tools for Lead Enrichment AI Prospecting Tools

Technical Details

API Type

REST

Authentication

API Key

Pricing Tier

Paid Only

SDK Languages

Python, Node.js, Ruby, Go, PHP

Webhooks

Yes

Frequently Asked Questions

What does Hunter.io do?

Hunter.io is a sales intelligence tool that provides The standard for finding and verifying professional email addresses.

How do I use Hunter.io with AI agents?

Connect Hunter.io to agents like Claude Code or Cowork by using its REST and your API Key keys. This allows your agent to perform Email Finder and Email Verifier directly without needing extra software.