The GTM MCP Directory
Directory / Data & Enrichment / Hunter.io

Hunter.io

Official MCP Free to start Data & Enrichment RESEARCHED Checked 2026-09-03
RESEARCHED Facts from public sources with URLs. No usage claims. Nobody has run this tool. The other tier is BENCH-TESTED, which means Andrew personally ran the tool on a stated date and cannot be bought at any price. Across the whole directory that count is 1.

Vendor: hunter.io · entry id 01-hunter-io · source 01-data-enrichment.md line 350

What it does
An email-finding and verification tool - given a name, domain, or company, it locates likely professional email addresses (via domain pattern-matching and web-crawled data) and verifies deliverability; also offers bulk domain search and a separate higher-volume "Data Platform" API for larger-scale lookups.
AI features, separated from automation with an AI label on it
Primarily deterministic pattern-matching (common email formats per domain) plus web crawling and deliverability checks (SMTP/syntax verification) - this is data engineering, not AI/ML in any meaningful sense. Notably, Hunter does not prominently market itself as "AI-powered," which is more honest than most competitors in this category.
RevOps role
Email-finding/verification utility typically plugged in downstream of a contact-discovery tool (or run directly against a domain list) to fill in or validate email addresses before outreach; also used for domain-wide email-pattern discovery.
MCP server
Status bucket
Official MCP
Auth
api key (HUNTER_API_KEY)
Parsed URLs
1 found in the mcp_url field
Endpoint probe
docs page, not an endpoint
Probed
2026-09-04, HTTP 200

The vendor ships and maintains the server itself. A wrapper built by Zapier, Composio or a similar third party does not count as official. The status was established by hand on 2026-09-03. On 2026-09-04 the recorded URL served a documentation page, not an MCP endpoint. That is where to read about the server, not where to connect to it. An agent needs the second.

mcp_status, verbatim from the file:

official

mcp_url, verbatim from the file:

https://hunter.io/api-documentation#mcp (an earlier open-source repo, github.com/hunter-io/hunter-mcp, is superseded by this hosted remote MCP server)

What this server exposes
Tools named
6
Strongest evidence
in the server source
Harvested
2026-09-27
Repo read
hunter-io/hunter-mcp
Whose repo
first-party
Catalogue shape
a fixed catalogue the vendor publishes

A tool below is one the server NAMES. Nobody has called it. That is the same two tier honesty rule the rest of the directory runs on: a named tool is research, and BENCH-TESTED stays the only claim that anybody ran anything.

  • create_lead
    No description was recorded with the name.
    evidence: in the server source · calling it reads
  • domain_search
    No description was recorded with the name.
    evidence: in the server source · calling it reads
  • email_finder
    No description was recorded with the name.
    evidence: in the server source · calling it reads
  • email_verifier
    No description was recorded with the name.
    evidence: in the server source · calling it reads
  • enrich_company
    No description was recorded with the name.
    evidence: in the server source · calling it reads
  • enrich_email
    No description was recorded with the name.
    evidence: in the server source · calling it reads

141 of the 741 entries that record an official or community MCP server carry a harvested tool list. The other 600 are unmeasured, which is not the same as empty. Harvest last run 2026-09-27. Every name across every server is on the tools index.

Command line

No CLI found by the 2026-09-27 harvest across vendor docs, npm, PyPI, Homebrew and GitHub. That is a probe result, not proof of absence.

Access gate
Gate bucket
Free to start
Can a solo operator reach it
Yes, without talking to anyone

api_gate, verbatim from the file:

free

API documentation

No documentation URL recorded.

727 of 1252 entries are in the same position. Blank is legal and it is published as blank.

GitHub health

Not measured. github_url, github_stars, github_last_commit and github_archived are null on every entry in this build.

The refresh rail specced in SPEC section 7.2 has not been run. An unstamped star count is a lie, so nothing is shown rather than something stale.

A github.com URL already appears somewhere in this entry, which is a seed for that rail and not a measurement of repo health:

On GitHub

github.com/hunter-io tied to the vendor by rule 1, account website https://hunter.io has the vendor's domain, confidence strong

Public repositories
14, forks excluded, as read on 2026-09-08
Mention MCP
2 of them
Look like CLIs
0 of them
Latest push
2026-09-01

The five most recently pushed, on 2026-09-08:

RepositoryKindDescriptionStarsPushedLatest release
claude-pluginplugin or integrationHunter plugin for Claude - find and verify professional email addresses, search contacts by domain, and enrich company...92026-09-01
chatgpt-mcpMCP serverHunter MCP server for ChatGPT - company discovery, enrichment, and lead management.72026-09-01
cursor-pluginplugin or integration02026-09-01
geonamesother12026-09-01v0.2.0
baseimage-rubySDKBase Docker image for Hunter's Rails applications02026-07-14

Kind is a heuristic guessed from the repository name, topics and description, not a fact the vendor stated. A repository count is activity, not a verdict. Read 2026-09-08.

Jobs it can do

A job tag means the vendor says the tool does this. It is not a test result, not proof the capability is reachable through the tool's MCP server, and not proof it is available on the gate this entry records.

Tagged by machine-pass on 2026-08-25 against the closed 56 job vocabulary. 271 of 1,252 entries carry at least one tag; 849 tags are assigned in total.

Sources

6 source URLs. Raw sources field, verbatim:

https://github.com/hunter-io/hunter-mcp, https://hunter.io/pricing, https://hunter.io/api, https://fullenrich.com/content/hunter-io-pricing, https://www.g2.com/products/hunter/pricing, https://hunter.io/api-documentation/v2

Notes, verbatim from the file
The Free tier ($0/mo, 25 searches + 50 verifications/month) includes API access per Hunter's own feature-comparison table, making it one of the few tools here with genuinely self-serve, no-cost API access (rate/volume-limited). Paid tiers: Starter (~$34-49/mo), Growth (~$104-149/mo), Scale (~$209-299/mo depending on annual/monthly billing), Enterprise custom. A separate higher-volume "Data Platform" API product uses credit packages starting around $6,500. 2026-09-03: vendor docs state the Email Finder endpoint "finds the most likely email address from a domain name, a first name and a last name" and its response includes linkedin_url (https://hunter.io/api-documentation/v2); no MCP tool name is stated on that page; the docs state no credit is charged if no email is found, and the pricing page states the Free plan includes 50 credits per month (https://hunter.io/pricing).
Provenance
Entry id
01-hunter-io
Source file
01-data-enrichment.md
Source line
350
Tier
RESEARCHED
last_checked
2026-09-03
Data baked
2026-09-27

Every field above is rendered from directory.json exactly as the build produced it. Nothing is summarised and nothing is dropped. The one change made at render time is typographic and it is disclosed on the methodology page.