# Hunter MCP (mcpb · hunter-mcp.mcpb)

Hunter.io MCP: domain search, email finder and verifier, enrichment, discovery, leads. 11 tools.

- Trust score: 45/100 (low)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-21

## Components

- mcpb · `hunter-mcp.mcpb`: 45/100 (this document), [markdown](https://verifymcp.io/servers/io-scalably-hunter-mcp/https-github-com-scalably-io-hunter-mcp-releases-download-v1-0-0-hunter-mcp-mcpb.md), [page](https://verifymcp.io/servers/io-scalably-hunter-mcp/https-github-com-scalably-io-hunter-mcp-releases-download-v1-0-0-hunter-mcp-mcpb)
- npm · `@scalably-io/hunter-mcp`: 70/100, [markdown](https://verifymcp.io/servers/io-scalably-hunter-mcp/scalably-io-hunter-mcp.md), [page](https://verifymcp.io/servers/io-scalably-hunter-mcp/scalably-io-hunter-mcp)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/scalably-io/hunter-mcp/releases/download/v1.0.0/hunter-mcp.mcpb`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-21.

- **Supply Chain Security**: 13/100
  - Malware scan not yet available for this package.
  - Known CVEs could not be checked: we could not reach the registry to check. This is a gap on our side.
  - No install/post-install scripts declared.
  - Dependency health could not be checked: we could not reach the registry to check. This is a gap on our side.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 11 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 62/100
  - AI-judged instruction clarity (fair).
  - Context-footprint check failed: tool/resource definitions use about 1233 tokens (~112/item across 11 items; 11 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 69/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 6% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

- Download bundle: `https://github.com/scalably-io/hunter-mcp/releases/download/v1.0.0/hunter-mcp.mcpb`

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-21 (score 45, −3)

- [security regression] Known CVEs: partial → unverified
- [functional regression] Dependency health: 0.82 → unverified

### 2026-09-20 (score 48, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 47, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 46, +3)

- [functional improvement] Stability: unverified → 0.27

### 2026-09-09 (score 43)

First indexed and scored.

## MCP tools (11)

### `account_info` (~29 tokens)

Read the Hunter v2 account plan and exact current credit usage, including remaining unified or per-type balances.

### `domain_search` (~135 tokens)

Search Hunter v2 emails for one domain/company with current people, verification, location, job-title, decision-maker, aggregation, and offset filters.

Input parameters:

- `aggregations` (boolean)
- `company` (string)
- `decision_maker` (boolean)
- `department` (array)
- `domain` (string)
- `job_titles` (array)
- `limit` (integer)
- `location` (object)
- `offset` (integer)
- `required_field` (array)
- `seniority` (array)
- `type` (string)
- `verification_status` (array)

### `email_finder` (~87 tokens)

Find and automatically verify the most likely professional email from a company/domain plus name, or directly from a LinkedIn handle.

Input parameters:

- `company` (string)
- `domain` (string)
- `first_name` (string)
- `full_name` (string)
- `last_name` (string)
- `linkedin_handle` (string)
- `max_duration` (integer)

### `email_verifier` (~48 tokens)

Verify one email address with Hunter v2 and return exact deliverability, score, SMTP/MX, accept-all, webmail, disposable, and source evidence.

Input parameters:

- `email` (string, required)

### `email_count` (~50 tokens)

Count Hunter email coverage for a domain/company, optionally limited to personal or generic addresses, without returning addresses.

Input parameters:

- `company` (string)
- `domain` (string)
- `type` (string)

### `email_enrichment` (~67 tokens)

Enrich a person from an email address or LinkedIn handle using Hunter v2, optionally in Clearbit-compatible format.

Input parameters:

- `clearbit_format` (boolean): Return Hunter enrichment data in Clearbit-compatible field shape.
- `email` (string)
- `linkedin_handle` (string)

### `company_enrichment` (~54 tokens)

Enrich a company from its domain using Hunter v2, optionally in Clearbit-compatible format.

Input parameters:

- `clearbit_format` (boolean): Return Hunter enrichment data in Clearbit-compatible field shape.
- `domain` (string, required)

### `combined_enrichment` (~58 tokens)

Enrich both a person and their company from one email using Hunter v2, optionally in Clearbit-compatible format.

Input parameters:

- `clearbit_format` (boolean): Return Hunter enrichment data in Clearbit-compatible field shape.
- `email` (string, required)

### `discover` (~139 tokens)

Use Hunter Discover v2 to find companies from current natural-language or structured organization, location, industry, headcount, type, year, keyword, technology, and funding filters.

Input parameters:

- `company_type` (object)
- `funding` (object)
- `headcount` (array)
- `headquarters_location` (object)
- `industry` (object)
- `keywords` (object)
- `limit` (integer)
- `offset` (integer)
- `organization` (object)
- `query` (string)
- `similar_to` (object)
- `technology` (object)
- `year_founded` (object)

### `create_lead` (~187 tokens)

Create one Hunter lead from a required email and optional current lead fields, list placement, and custom attributes. This is a single-attempt mutation.

Input parameters:

- `company` (string)
- `company_industry` (string)
- `company_size` (string)
- `confidence_score` (integer)
- `country_code` (string)
- `custom_attributes` (object)
- `email` (string, required)
- `first_name` (string)
- `last_name` (string)
- `leads_list_id` (integer)
- `leads_list_ids` (array)
- `leads_list_name` (string)
- `linkedin_url` (string)
- `notes` (string)
- `phone_number` (string)
- `position` (string)
- `source` (string)
- `twitter` (string)
- `website` (string)

### `list_leads` (~379 tokens)

List Hunter leads with current list, identity, company, status, verification, activity/date, location, tag, campaign, user, confidence, custom-attribute, query, and offset filters.

Input parameters:

- `campaign_ids` (array)
- `campaign_membership` (string)
- `company` (string)
- `company_size` (string)
- `confidence_score` (object)
- `country_code` (string)
- `created_range` (object)
- `custom_attributes` (object)
- `departments` (array)
- `email` (string)
- `first_name` (string)
- `industry` (string)
- `last_activity_at` (string): Hunter period preset, *, ~, or supported date value.
- `last_activity_range` (object)
- `last_contacted_at` (string): Hunter period preset, *, ~, or supported date value.
- `last_contacted_range` (object)
- `last_exported_at` (string): Hunter period preset, *, ~, or supported date value.
- `last_exported_range` (object)
- `last_name` (string)
- `leads_list_id` (integer)
- `limit` (integer)
- `linkedin_url` (string)
- `location` (object)
- `offset` (integer)
- `phone_number` (string)
- `positions` (array)
- `query` (string)
- `sending_statuses` (array)
- `source` (string)
- `sync_status` (string)
- `tag_ids` (array)
- `twitter` (string)
- `updated_range` (object)
- `user_ids` (array)
- `verification_date_range` (object)
- `verification_statuses` (array)
- `website` (string)

## Diagnostics

Captured diagnostic sections: Provenance. The full working is on the page: https://verifymcp.io/servers/io-scalably-hunter-mcp/https-github-com-scalably-io-hunter-mcp-releases-download-v1-0-0-hunter-mcp-mcpb#diagnostics

## Score history

- 2026-09-21: 45
- 2026-09-20: 48
- 2026-09-19: 47
- 2026-09-18: 47
- 2026-09-17: 46
- 2026-09-16: 43
- 2026-09-15: 43
- 2026-09-14: 43
- 2026-09-13: 43
- 2026-09-12: 43
- 2026-09-11: 43
- 2026-09-10: 43
- 2026-09-09: 43

## Common questions

### What is the Hunter MCP server?

Hunter MCP is listed in the public MCP registry as io.scalably/hunter-mcp. Hunter.io MCP: domain search, email finder and verifier, enrichment, discovery, leads. 11 tools. This page covers its MCPB bundle (https://github.com/scalably-io/hunter-mcp/releases/download/v1.0.0/hunter-mcp.mcpb).

### Is the Hunter MCP server safe to use?

Hunter MCP scores 45 out of 100 on VerifyMCP. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Hunter MCP server expose?

Hunter MCP exposes 11 tools: account_info, domain_search, email_finder, email_verifier, email_count, and 6 more. Their descriptions and schemas cost roughly 1,233 tokens of context every time the server is loaded.

### What licence is the Hunter MCP server under?

Hunter MCP declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- Repository: https://github.com/scalably-io/hunter-mcp
- Website: https://scalably.io/mcp/hunter-mcp
- Changelog RSS feed: https://verifymcp.io/servers/io-scalably-hunter-mcp/https-github-com-scalably-io-hunter-mcp-releases-download-v1-0-0-hunter-mcp-mcpb.xml
- Changelog JSON feed: https://verifymcp.io/servers/io-scalably-hunter-mcp/https-github-com-scalably-io-hunter-mcp-releases-download-v1-0-0-hunter-mcp-mcpb.json
- HTML version of this page: https://verifymcp.io/servers/io-scalably-hunter-mcp/https-github-com-scalably-io-hunter-mcp-releases-download-v1-0-0-hunter-mcp-mcpb