By hunter-io
Search, find, verify, and enrich B2B contact and company data in the Hunter.io ecosystem, from email discovery to campaign preparation
Prepares an email campaign by adding recipients from your leads. Use when the user wants to set up a campaign, add recipients to a campaign, or prepare for outreach.
Retrieves detailed company information including industry, size, location, and description from a domain name. Use when the user asks about a company, wants company details, or says "tell me about [company]".
Searches for companies matching specific criteria like industry, size, location, and technologies. Use when the user wants to find companies, build a target list, or search for businesses in a market segment. This is a free operation that does not consume credits.
Finds all publicly available email addresses and contacts at a company domain. Use when the user asks who works at a company, wants to find contacts at a domain, or needs email addresses for an organization.
Finds a professional email address from a person's name and company domain. Use when the user asks to find someone's email, look up a contact's email address, or needs to reach a specific person at a company.
External network access
Connects to servers outside your machine
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Find and verify professional email addresses, search contacts by domain, enrich company data, and run full prospecting workflows -- all through natural language in Claude.
Install from the Claude plugin directory, or upload manually via Settings > Plugins > Upload custom plugin in Claude Cowork.
When you first use a Hunter tool, you'll be prompted to connect your Hunter account. The MCP server handles authentication -- just follow the prompts to authorize access with your Hunter API key.
Don't have an account? Sign up for free -- the Free plan includes 25 monthly searches and 50 verifications.
Hunter provides 7 skills that trigger automatically based on your requests:
| Skill | What it does | Try saying... |
|---|---|---|
| Email Finder | Find someone's email from their name and company | "Find Jane Smith's email at Stripe" |
| Domain Search | List all contacts at a company | "Who works at notion.com?" |
| Email Verifier | Check if an email is deliverable | "Is [email protected] valid?" |
| Company Enrichment | Get company details (industry, size, location) | "Tell me about acme.com" |
| Person Enrichment | Get person details from their email | "What do you know about [email protected]?" |
| Discover | Find companies by criteria (free!) | "SaaS companies in France with 50-200 employees" |
| Prospecting | Full end-to-end workflow | "Build me a prospect list of CTOs at fintech startups" |
"Tell me about stripe.com, then find their VP of Sales and verify the email."
Claude will chain Company Enrichment -> Domain Search -> Email Finder -> Email Verifier automatically.
"Find fintech startups in France with 50-200 employees, then get the CTOs' email addresses."
Claude will use Discover to find companies, Domain Search to find contacts, and filter for CTOs.
"Find marketing leaders at SaaS companies in Germany. Verify all their emails."
Claude will chain Discover -> Domain Search -> Email Verifier, confirming credit usage before verification.
| Operation | Credit Cost |
|---|---|
| Domain Search | 1 credit per 10 results |
| Email Finder | 1 credit |
| Email Verifier | 1 credit |
| Company Enrichment | 1 credit |
| Person Enrichment | 1 credit |
| Discover | Free |
Claude will always confirm before running operations that consume credits in bulk.
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