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Hunter MCP Server

Hunter MCP Server

Official
by hunter-io

Hunter MCP Server

⚠️ Deprecated - Please Switch to Hunter's Remote MCP Server ⚠️

This repository is no longer maintained. All functionality has moved to Hunter’s Remote MCP Server, which provides a more convenient setup.

👉 Start here: https://hunter.io/api-documentation#mcp


🙋‍♂️ Introduction

This MCP (Model Context Protocol) server provides integration between the Hunter API and any LLM provider supporting the MCP protocol (e.g., Claude for Desktop), allowing you to interact with the Hunter B2B data using natural language.

Related MCP server: Apollo MCP

✨ Features

  • Use Hunter API endpoints using natural language

  • Get B2B data about People and Companies

  • Save them to your Leads through conversational interfaces

📦 Installation

Prerequisites

🔌 MCP setup

Here is an example config file which you can use to set up Hunter MCP.

{
  "mcpServers": {
    "hunter-mcp": {
      "command": "uv",
      "args": [
        "run",
        "--with",
        "mcp[cli]",
        "mcp",
        "run",
        "PATH_TO_hunter-mcp/main.py"
      ],
      "env": {
        "HUNTER_API_KEY": "YOUR_HUNTER_API_KEY"
      }
    }
  }
}

For Claude Desktop, you can install and interact with it right away by running:

mcp install main.py -v HUNTER_API_KEY=YOUR_HUNTER_API_KEY

🔎 Example

Hunter MCP in Claude Desktop

🚀 Available Tools

The Hunter MCP server provides access to various Hunter API endpoints as tools.

The current version offers the following tools:

  • Domain Search

  • Email Finder

  • Email Verifier

  • Email Enrichment

  • Company Enrichment

  • Lead Creation

Note: All the Hunter API endpoints are not supported, yet. This will be addressed in a future release.

🔑 License

This project is licensed under the MIT License; see the LICENSE.md file for details.

Available Tools

6 tools
create_leadC

Create a lead in user's account.

Inputs: email (required).

email_finderB

Return the most likely email address for a given domain and full name.

Inputs: domain (required), full_name (required).

email_verifierC

Return the validity of a given email address.

Inputs: email (required).

enrich_companyC

Return all the information associated with a domain, such as the industry, the description, or headquarters' location.

Inputs: domain (required).

enrich_emailC

Return all the information associated with an email address, such as a person's name, location and social handles.

Inputs: email (required).

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    TDQS

    B3.3/5.0

    Scored across 6 tools

    Disambiguation5/5

    Each tool has a clearly distinct purpose with no ambiguity: creating leads, domain-based email searches, email finding for specific names, email verification, company enrichment, and email enrichment. The descriptions clearly differentiate their functions, making misselection unlikely.

    Naming Consistency5/5

    All tool names follow a consistent snake_case pattern with clear verb_noun combinations (e.g., create_lead, domain_search, email_finder). The naming is predictable and readable throughout the set.

    Tool Count5/5

    With 6 tools, this server is well-scoped for its purpose in lead generation and contact enrichment. Each tool earns its place by covering distinct aspects of the workflow, from lead creation to data verification and enrichment.

    Completeness4/5

    The tool set provides strong coverage for lead and contact management, including creation, search, verification, and enrichment. A minor gap might be the lack of update or delete operations for leads, but agents can likely work around this for core workflows.

    Maintenance

    ActivityInactive
    ResponsivenessOutdated data

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