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Hunter

Email outreach platform for finding and verifying B2B contacts and sending cold email sequences.

Hunter is an email outreach platform that finds professional email addresses, verifies them and sends cold email sequences from your own inbox. Hunter is used in its web app, through browser extensions and a Google Sheets add-on, over an API, or from AI tools via a remote MCP server. A free plan includes 50 credits per month.

Best for Sales, marketing and founder-led teams that need verified B2B contact data and a simple way to run cold email campaigns from one tool.

Hunter website home page
Screenshot of hunter.io, captured 9 Oct 2026
Platforms
Web, Browser extension, API, MCP
Pricing model
Freemium
Free plan
Yes
API
Yes
Made by
Hunter Web Services, Inc.
Added

Last verified: . Information taken from hunter.io.

What is Hunter?

Hunter is an email outreach platform that combines B2B contact discovery, email verification and cold email sending. Domain Search lists the addresses linked to a company, Email Finder looks up a named professional, and Email Verifier checks whether an address is valid before a campaign goes out. A company database called Discover filters businesses by attributes and buying signals, and TechLookup lists websites by the technology they run. For outreach, Sequences sends automated, A/B-tested emails from connected inboxes, and an AI Writing Assistant helps draft the messages. The same data is available outside the web app through Chrome, Firefox and Edge extensions, a Google Sheets add-on, CRM syncs with Salesforce, HubSpot, Pipedrive and Zoho, an API, and a remote MCP server for AI assistants. Hunter says its data is gathered from public sources.

Key Features

Domain Search

Returns the email addresses associated with a company domain, together with the public pages where each one was seen.

Email Finder and Verifier

Looks up one person's work address from a name and company, and checks the validity of any address; lookups that return nothing are not charged.

Discover and Signals

Builds target company lists from a B2B database using filters and intent signals, with weekly lead suggestions on paid plans.

Sequences

Sends multi-step cold email campaigns from your connected email accounts, with A/B testing, tracking and reporting.

AI Writing Assistant

Drafts cold email copy inside the campaign editor.

API and MCP Server

Exposes search, verification and enrichment to code through an API and to AI assistants through a remote MCP server.

How Hunter works

  1. Find leads

    Search by company, domain or person, or filter the Discover database for companies matching your target profile.

  2. Enrich and verify

    Let Hunter verify each contact and fill in missing company details on built or imported lists.

  3. Engage

    Send an automated email sequence from your own inbox and track the replies.

Videos

From Prospecting to Outreach in 2 MinutesOfficial two-minute walkthrough from prospecting to outreach. Watch on YouTube

Use Cases

Prospect List Building
Filter companies by size, technology or signals and collect decision-maker contacts for an outbound campaign.
List Cleaning Before a Send
Upload an existing contact file and verify every address in bulk before launching.
Contact Lookup While Browsing
Open the browser extension on a company website to see the addresses linked to that domain.
CRM Enrichment
Sync verified contacts and email activity into Salesforce, HubSpot, Pipedrive or Zoho.
Data for Internal Tools
Buy pay-as-you-go credits on the Data Platform and call the API from your own pipeline.

Things to know

Credits on monthly and yearly billing
With monthly billing, unused credits expire at each reset; yearly plans provide the full year's credits upfront.
Repeated lookups are counted once
An identical search or verification is charged only one time within a billing period.
Disposable addresses are skipped
Hunter does not verify disposable email addresses, and skipping them uses no credit.
Non-profit discount
Registered non-profit organizations can request 30% off monthly plans by sending documentation to Hunter.

FAQs

What is Hunter?

Hunter is an email outreach platform for finding professional email addresses, verifying them and sending cold email campaigns.

Is Hunter free?

Yes. Hunter has a free plan with 50 credits per month and one connected email account, and signing up does not require a credit card.

How much does Hunter cost?

Hunter: a free plan is available. Paid plan rates are published on hunter.io. Check the official pricing page for current amounts.

How do Hunter credits work?

In Hunter, finding one email uses 1 credit and verifying one uses 0.5 credit, while searches that find nothing are free. On monthly billing, credits reset each month without rolling over.

Does Hunter have an API?

Yes. Hunter provides an API for domain search, email finding, verification and enrichment, and a separate Data Platform offer for API-only use.

Can a team share one Hunter subscription?

Yes. Hunter allows unlimited team members on every plan at no added cost, and all members draw from one credit pool.

Does Hunter work with AI assistants?

Yes. Hunter offers a remote MCP server so AI apps and agents can run prospecting queries in natural language.

Who makes Hunter?

Hunter is operated by Hunter Web Services, Inc. and has been in business since 2015.

Who it's for

  • Sales teams
  • Marketers
  • Founders
  • Agencies
  • Developers

Tagsemail finderemail verificationcold emailB2B leadsMCPAPI

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