Hunter
Hunter is an email marketing company specializing in lead generation and data enrichment.
Verdict
Common use cases
- Build outreach lists from LinkedIn profiles
- Verify prospect emails before cold campaigns
- Enrich company data during sales calls
- Organize leads into segmented lists
- Check account usage before bulk lookups
Integration
- Vendor
- Hunter
- Category
- other
- Auth
- API_KEY
- Tools
- 21
- Composio slug
hunter
Tools
- Account Information
Tool to retrieve information about your hunter account. use when you need to check your plan details and usage limits after confirming credentials.
- Company Enrichment
Tool to get enrichment information for a company by its domain. use when you need full company details (industry, description, location, metrics) from hunter.
- Create custom lead attribute
Tool to create a new custom lead attribute in your account. use after deciding on the attribute label.
- Create Lead
Tool to create a new lead. use after gathering all prospect details to save them to your hunter account.
- Create Leads List
Tool to create a new leads list. use when you need to organize leads into a custom list before adding leads.
- Delete Custom Attributedestructive
Tool to delete an existing custom attribute. use after confirming the attribute id to be removed.
- Delete Leaddestructive
Tool to delete a lead. use after confirming the lead's id to remove it from your hunter.io account.
- Delete Leads Listdestructive
Tool to delete a leads list by its id. use after confirming the leads list id to remove it from your hunter.io account.
- Domain Search
Tool to search all email addresses for a given domain or company. use when you need public emails and metadata for outreach or enrichment.
- Email Finder
Tool to find the most likely email address for a person at a domain or company. use when you have a person's name and a domain or company and need to infer their email.
- Email Verifier
Tool to verify the deliverability of an email address. use when you need to ensure an address is valid and reachable.
- Get Custom Attribute
Tool to retrieve details of a specific custom attribute. use when you need the label and slug for an attribute id.
- Get Lead
Tool to retrieve details of a specific lead by id. use after confirming the lead's id to fetch its full record.
- Get Leads List
Tool to retrieve details of a specific leads list by id. use when you need to inspect the contents of an existing leads list.
- List Custom Attributes
Tool to list all custom lead attributes in your account. use when you need to retrieve your account's custom lead attributes after authenticating.
- List Leads
Tool to list all leads saved in your account with optional filters. use when you need to retrieve leads with specific criteria after confirming your api key.
- List Leads Lists
Tool to list all leads lists in your account. use when you need to retrieve and paginate through your leads lists.
- Update Custom Attribute
Tool to update an existing custom attribute's label. use when renaming a custom attribute after creation.
- Update Lead
Tool to update details of an existing lead by id. use when you need to modify saved lead attributes after creation.
- Update Leads List
Tool to update the name of a specific leads list. use when renaming an existing leads list.
- Upsert Lead
Tool to create or update a lead by email in one call. use when you want to ensure a lead exists with the provided information without checking its existence first.
Setup
Setup guide
- 11. Open your Switchy workspace and navigate to Settings > Integrations > Browse MCP Servers. 2. Find Hunter in the list and click Connect. 3. You'll be prompted to enter your Hunter API key — get this from your Hunter dashboard under API > API Keys (create a new key if you don't have one). 4. Paste the key into Switchy and click Save. 5. Switchy will test the connection by calling the Account Information tool to verify your credentials and plan limits. 6. Once connected, open any Space and type '@Hunter' followed by a task like 'find the email for john@example.com's company domain' to confirm the integration works. 7. Hunter will respond inline with results — you can now search emails, enrich companies, create leads, and manage lists directly from chat.
What teammates see: by default, memories from Hunter are scoped to the Space (PROJECT visibility) - you can mark any memory PRIVATE or share it ORG-wide.
Works well with
Top models
Compatibility data appears once enough Spaces have used this MCP together with a given model.
How Switchy teams use it
Starter prompts
Find Contact Email
@Hunter find the email address for Sarah Chen who works at acme-corp.comOpen in a Space →
Enrich Company Profile
@Hunter get enrichment data for stripe.com including employee count and headquarters locationOpen in a Space →
Create Lead from Prospect
@Hunter create a lead for Mike Rodriguez at techstartup.io with title 'VP Engineering' and tag this as 'Q1 outreach'Open in a Space →
Build Segmented List
@Hunter create a new leads list called 'Enterprise SaaS - West Coast' for our Q2 pipelineOpen in a Space →
Check API Usage
@Hunter show my account information including remaining email searches and verification creditsOpen in a Space →
Example outputs
Illustrative - representative of the model's voice and quality, not literal recordings.
@hunter find me company details and employee count for stripe.com so I can build a prospect profile
Hunter returned enrichment data for Stripe showing: Financial Services & Technology sector, headquartered in San Francisco, CA. Employee range: 5,001-10,000. Description indicates they provide payment processing infrastructure for internet businesses. The domain shows high email pattern confidence. This illustrative example demonstrates how Hunter aggregates public company signals into a structured profile you can use for account research.
Company Enrichment pulls from Hunter's proprietary database of scraped and verified business data. Coverage varies significantly by company size and web presence—well-known tech companies return rich profiles, while smaller B2B firms may show limited fields. No authentication with the target company occurs; this is passive lookup only.
@hunter create a lead for Sarah Chen, VP of Engineering at Acme Corp, email sarah.chen@acmecorp.com, and tag it 'Q1 outreach'
Lead created successfully in your Hunter account. Record ID: lead_abc123. Contact details stored: Sarah Chen, title 'VP of Engineering', company 'Acme Corp', email verified as deliverable format. Custom tag 'Q1 outreach' applied. This example shows Hunter persisting prospect data you've gathered—useful for centralizing lead tracking before pushing to your CRM. The lead now appears in your Hunter dashboard for future reference.
Create Lead requires an API key with write permissions. Hunter does NOT verify the email deliverability in real-time during creation—it only validates format. If you need verification status, run a separate Email Verifier tool call first. Be aware that creating leads counts against your monthly lead credit quota depending on your Hunter plan tier.
@hunter check my account usage limits, then summarize how many email verifications I have left this month and whether I'm approaching any caps
Hunter account shows: Plan tier 'Growth', billing cycle resets in 12 days. Email verification credits: 487 of 1,000 used (51.3% remaining). Domain search credits: 22 of 100 used. Lead exports: 340 of 500 used. Based on current usage velocity, you're on track to stay within limits. The AI notes you have comfortable headroom for verification but should monitor lead exports if you're planning bulk list creation before the reset.
Account Information provides real-time quota visibility, critical for workflow planning when Hunter actions are embedded in automated sequences. The example pairs raw API data with AI reasoning to give actionable guidance. Note that quota enforcement is strict—exceeding limits will cause subsequent tool calls to fail until your cycle resets or you upgrade your plan.
Use-case deep-dives
When Hunter beats manual prospecting for early-stage teams
A 3-person sales team at a B2B SaaS startup needs to build targeted prospect lists from scratch every week. Hunter's domain enrichment and lead creation tools let them pull company details and verified contacts in one pass, then organize them into custom lists by vertical or campaign. The MCP shines here because the team can script list-building workflows without leaving their AI workspace—no toggling between Hunter's UI and a spreadsheet. The threshold: if you're sending fewer than 50 cold emails a week, the setup overhead isn't worth it. But once you're running multiple campaigns and need repeatable list hygiene, the MCP pays off in the first month.
Hunter for backfilling missing company data in your CRM
A 12-person customer success team inherited a CRM with 800 accounts but half the company records are missing industry tags, employee counts, or location data. Hunter's company enrichment tool can batch-fill those gaps by domain lookup, and the MCP's custom attribute tools let them map Hunter fields to their CRM schema without export-import cycles. This works if your CRM already has clean domain data and you're enriching metadata, not chasing net-new leads. If your CRM is a mess of duplicate domains or you need phone numbers more than firmographics, Hunter's not the right call—use a dedicated data vendor with deduplication. For clean backfills under 2,000 records, Hunter closes the loop in a few hours.
When Hunter's overkill for one-off partner prospecting
A solo founder is researching 15 potential integration partners and needs contact info for their BD leads. Hunter's email finder and domain search would work, but the MCP's 21-tool surface area is wasted on a one-time task. The account setup, API key config, and custom attribute scaffolding take longer than manually checking LinkedIn and company sites for 15 people. Hunter makes sense when you're doing this every quarter and want to track outreach history in leads lists, or when you're vetting 100+ partners and need batch lookup. For ad-hoc research under 30 contacts, skip the MCP and use Hunter's web app directly—you'll be done before the integration finishes installing.
Frequently asked
What does the Hunter MCP do in Switchy?
It connects your Hunter.io account so your team can find email addresses, enrich company data, and manage leads without leaving Switchy. You can search for contacts by domain, verify emails, create lead lists, and pull account usage stats — all through natural language prompts instead of clicking through Hunter's web UI.
Do I need a paid Hunter plan to use this MCP?
You need a Hunter API key, which requires at least a free Hunter account. The MCP will work with any plan tier, but your search and verification limits depend on your Hunter subscription. Check your quota with the Account Information tool before running bulk lookups to avoid hitting rate limits mid-workflow.
Can the Hunter MCP send cold emails or run campaigns?
No. This MCP only handles prospecting and data enrichment — finding emails, verifying addresses, building lead lists, and pulling company details. If you want to send outreach sequences, you'll need Hunter Campaigns (their separate product) or export your leads to an email tool like Instantly or Lemlist.
Is this faster than using Hunter's web app directly?
Yes, if you're doing multi-step workflows. Instead of opening Hunter, running a domain search, copying results, switching to a spreadsheet, then creating a list, you describe the task once and the MCP chains the tools together. For one-off lookups, the web app is fine. For batch operations, the MCP saves 5-10 minutes per task.
Who on the team should connect the Hunter MCP?
Whoever owns your Hunter.io subscription and has the API key. The key grants full account access — creating lists, deleting leads, burning search credits — so don't share it with people who only need read-only lookups. If multiple people need Hunter access in Switchy, create separate Hunter accounts or rotate the key carefully.