Hunter MCP. Verify and enrich every contact email address.
Hunter MCP connects your AI agent directly to Hunter.io's powerful lead data engine. It finds professional email addresses based on a company domain, verifies if those emails are deliverable, and builds verified contact lists for targeted sales campaigns. Stop guessing addresses; start sending messages that actually get opened.
Give Claude and any AI agent real-world access
Finds multiple professional email addresses associated with any given company domain.
Pinpoints a specific person's email using only their name and the company they work for.
Checks if an email address is genuinely valid, deliverable, and safe to send messages to right now.
Creates and manages groups of verified contacts for outreach or campaign use.
Provides a count of total emails available for a specific company domain.
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What AI agents can do with Hunter MCP: 10 Email Data Tools
These ten tools give your agent granular control over lead data, allowing you to search domains, find specific emails, and verify addresses for maximum outreach accuracy.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Hunter MCPDomain Search
Searches for all potential professional email addresses tied to a specific company domain.
List Recipients
Generates and retrieves the list of intended recipients for an outreach campaign.
Email Finder
Locates a specific person's email address using their full name and company domain.
Email Verifier
Checks an entered email address to confirm if it is valid, deliverable, or unsafe to...
Email Count
Counts the total number of professional emails available for a given domain.
List Leads
Retrieves and manages existing lead lists that have already been saved by the user.
List Lead Lists
Shows a list of all the lead groups or lists you've created so far.
Get Account
Retrieves general account information for the integrated Hunter.io service.
List Campaigns
Lists all past or current outreach campaigns you've run through the platform.
Get Campaign
Retrieves detailed information about a specific, named campaign.
Security and governance baked right in.
Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.
Choose How to Get Started
Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.
Build Your Own
Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.
- Import from OpenAPI, Swagger, or YAML specs
- Create Agent Skills with progressive disclosure
- Deploy to edge with MCPFusion framework
- Built in DLP, auth, and compliance on each call
- Real time usage dashboard and cost metering
- Publish to catalog or keep private
Make Your AI Do More
Start with Hunter, then connect any of our 5,200+ other servers whenever your AI needs more. One click, no limits.
- Use this MCP plus 5,200+ others, all in one place
- Add new capabilities to your AI anytime you want
- Connections are secured and governed automatically
- Track usage and costs across all your servers
- Works with Claude, ChatGPT, Cursor, and more
- New servers added to the catalog weekly
Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Hunter.io. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.
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Sandboxed per request
Zero-Trust Proxy
No stored credentials
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Policy on each call
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EU data residency
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~60% cost reduction
The Pain of Stale Contact Lists
Today, building a targeted list means sifting through LinkedIn profiles, guessing common naming conventions, and manually cross-referencing domains. You spend hours copy-pasting names into spreadsheets just to find the correct email format for a company.
With this MCP, your agent does that work instantly. Instead of manual searching, you ask it to use the `domain_search` tool on a domain name. It gives you dozens of verified email addresses and the pattern they follow, letting you move straight into outreach.
Discovering, Verifying & Enriching Contacts
The biggest time sinks are checking if a name belongs to a company or confirming an email address is active. You waste cycles pinging addresses that bounce back because the domain server is offline.
Now, you can ask your agent to run `email_finder` and it returns the specific email for Sarah Johnson at Acme Corp, along with confidence scores. It's accurate data ready for action.
What Hunter MCP does for your AI
Use this MCP to power your outreach efforts by validating and enriching prospect data without leaving your primary workflow. Instead of manually checking email databases or relying on outdated contacts, your agent can now perform real-time domain searches. Need a specific person's address? The tool finds it using just their name and the company domain.
It also checks if any given email address is valid and safe to send to. If you’re building large lists for marketing campaigns, you can create and manage those lead groups directly through your agent. Because Vinkius hosts this connector, you connect once from Claude, Cursor, or Windsurf, giving your AI client immediate access to all these advanced data tools.
You simply ask your agent to find emails, check a domain, or verify an address, and it handles the rest.
019d75b5-9ad8-7318-a90b-0c956df48f9d How to set up Hunter MCP
The bottom line is you give your AI client the key, and it uses that power to run data enrichment tasks on demand.
Subscribe to the Hunter MCP on Vinkius and copy your API key from your Hunter.io dashboard.
Connect that key within your preferred AI client (like Cursor or Claude).
Ask your agent a specific task, such as 'Find all emails at examplecorp.com' or 'Verify contact@examplecorp.com', and get the results directly.
Who uses Hunter MCP
This MCP is essential for sales development reps, growth marketers, and recruiters who spend too much time building prospect lists or manually verifying contacts. If your outreach success hinges on accurate email addresses, you need this.
Using the MCP to instantly find decision-maker emails for specific companies and verify them right before adding them to an outbound sequence.
Building highly targeted prospect lists by domain, ensuring every address is verified and deliverable for a major campaign launch.
Locating candidate email addresses based on names and current employers to initiate direct, professional outreach.
Benefits of connecting Hunter MCP
Stop guessing addresses. Use the email_verifier tool to confirm if any address is genuinely deliverable before your agent sends a message, saving you time and keeping your domain reputation clean.
Build massive prospect lists instantly. The MCP lets you use domain_search to find every professional email attached to a company's website, far faster than manual scraping.
Never lose track of leads again. You can use list_lead_lists and list_leads to manage and categorize all your verified contacts in one place for future campaigns.
Need a specific contact? The email_finder tool lets you locate an individual's email by name, skipping the guesswork when targeting decision-makers.
Streamline campaign management. By listing existing campaigns with list_campaigns, you can ensure your agent knows exactly which outreach sequence to work on next.
Hunter MCP use cases
Scaling a cold email list for a new market
A growth marketer needs 100 verified contacts at Acme Corp. They ask their agent to run the domain_search tool on acmecorp.com, which returns hundreds of potential addresses. The marketer then uses the MCP's ability to create and manage lead lists to segment the best ones for immediate use.
Validating an old client list
A sales rep gets a spreadsheet with 500 contacts that might be stale. Instead of sending them all, they ask their agent to run email_verifier on the whole batch first. The agent flags every invalid address, so the rep only sends emails to confirmed, active accounts.
Targeting a specific VP at a competitor
A recruiter needs to contact the VP of Marketing at TechGlobal Inc. They use their agent with email_finder, providing the name and domain. The agent returns the exact, verified email address in seconds, allowing immediate outreach.
Planning a large-scale campaign
A marketing manager needs to know how many prospects they can target at TargetCo. They first use email_count to gauge the size of the domain's email pool, then use list_campaigns to check historical data before generating new leads.
Hunter MCP tradeoffs
What to watch out for, and the recommended way to handle each one.
Assuming all emails are good
Sending a bulk campaign using an old list of addresses that haven't been checked since last year. This results in high bounce rates and hurts your sender reputation.
Always run the email_verifier tool on any contact list before sending. If you need to build a whole new list, start with domain_search, then verify each address.
Searching domains manually
Having to visit multiple websites or use different tools just to find the general pattern of emails at a company.
Use domain_search with your agent. It quickly finds all professional email addresses associated with a domain, giving you a comprehensive overview in one go.
Losing track of contacts
Finding great leads but having no systematic way to save or categorize them for future campaigns.
Use list_lead_lists and then create new groups with the agent. This keeps your verified, valuable contacts organized and ready when you need them next.
When to use Hunter MCP
Use this MCP if your core problem is data quality: you need to know who has an email address and whether that email actually works. You must use it when prospecting, building cold outreach lists, or verifying addresses for a large campaign. Don't use this if you just need general market research—this tool focuses entirely on contact validation and list enrichment. If your goal is simply to write content about sales or manage internal project documents, this MCP won't help. You only come here when the deliverability of an email address determines success.
Frequently asked questions about Hunter MCP
How does Hunter MCP help me find emails for a whole company? +
You use the domain_search tool to input a company website's domain. The MCP will then return multiple professional email addresses associated with that entire organization.
Can I verify if an address is valid using Hunter MCP? +
Yes, you use the email_verifier tool. It checks the MX records and deliverability status of any provided email, telling you immediately if it's safe to send to.
Is list_lead_lists for saving my contacts? +
Yes, list_lead_lists lets you view all the organized groups of verified leads you have built. You can then ask your agent to interact with those lists using other tools.
What is the difference between email_finder and domain_search? +
domain_search finds everything at a domain level, while email_finder targets one specific person. You use it when you know the name but need confirmation of the email.
Does Hunter MCP help me plan an outreach campaign? +
You can manage this using list_campaigns. This tool allows your agent to see what campaigns have run before, ensuring your new efforts fit into existing strategies.
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