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io.github.Ali1041/leadloadz

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B2B lead search and email verification MCP server

Source code Documentation

What can you do with io.github.Ali1041/leadloadz?

  • Search Leads — Find verified B2B leads using natural language queries
  • Verify Email — Real-time email verification with deliverability scoring
  • Get Stats — Check your usage and remaining quotas
  • Interactive Setup — Built-in wizard to get your API key
  • Anonymous Telemetry — Helps us improve the product (no PII, opt-out via LEADLOADZ_DISABLE_TELEMETRY=1)

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @leadloadz/mcp-server
Claude Code 
claude mcp add leadloadz -e 'LEADLOADZ_API_KEY=<your leadloadz_api_key>' -e 'LEADLOADZ_API_BASE=<LEADLOADZ_API_BASE>' -- npx -y @leadloadz/mcp-server@1.1.3
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "leadloadz": {
            "command": "npx",
            "args": [
                "-y",
                "@leadloadz/mcp-server@1.1.3"
            ],
            "env": {
                "LEADLOADZ_API_KEY": "<your leadloadz_api_key>",
                "LEADLOADZ_API_BASE": "<LEADLOADZ_API_BASE>"
            }
        }
    }
}

Environment variables

  • LEADLOADZ_API_KEY required secret Your Leadloadz API key
  • LEADLOADZ_API_BASE API base URL (default: https://leadloadz.com/api/mcp). Do not use www — redirects strip auth headers.

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. @leadloadz/mcp-server
  2. Features
  3. Quick Start
  4. Installation
  5. Configuration
  6. Environment Variables
  7. Tools
  8. Security
  9. Support
  10. License

@leadloadz/mcp-server

A Model Context Protocol (MCP) server that connects AI assistants to the Leadloadz B2B lead generation platform.

Features

  • Search Leads — Find verified B2B leads using natural language queries
  • Verify Email — Real-time email verification with deliverability scoring
  • Get Stats — Check your usage and remaining quotas
  • Interactive Setup — Built-in wizard to get your API key
  • Anonymous Telemetry — Helps us improve the product (no PII, opt-out via LEADLOADZ_DISABLE_TELEMETRY=1)

Quick Start

Don't have an API key yet?

Run the setup wizard:

npx @leadloadz/mcp-server --setup

This will guide you through creating an account and getting your API key.

Already have an API key?

Add it to your MCP client configuration (see below) and start using Leadloadz directly.

Installation

No installation required. AI clients can run the server directly:

npx -y @leadloadz/mcp-server
Via npm
npm install -g @leadloadz/mcp-server
leadloadz-mcp

Configuration

You need a Leadloadz API key to use this server.

  1. Sign up at leadloadz.com
  2. Go to Dashboard → API Tokens
  3. Generate a new token
  4. Copy the token value
Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "leadloadz": {
      "command": "npx",
      "args": ["-y", "@leadloadz/mcp-server"],
      "env": {
        "LEADLOADZ_API_KEY": "your-api-key-here"
      }
    }
  }
}
Cline (VS Code)

Add to your Cline MCP settings:

{
  "mcpServers": {
    "leadloadz": {
      "command": "npx",
      "args": ["-y", "@leadloadz/mcp-server"],
      "env": {
        "LEADLOADZ_API_KEY": "your-api-key-here"
      }
    }
  }
}
Other Clients

Any MCP client that supports stdio transport can use:

{
  "command": "npx",
  "args": ["-y", "@leadloadz/mcp-server"],
  "env": {
    "LEADLOADZ_API_KEY": "your-api-key-here"
  }
}

Environment Variables

VariableRequiredDefaultDescription
LEADLOADZ_API_KEYYes—Your Leadloadz API token
LEADLOADZ_API_BASENohttps://leadloadz.com/api/mcpAPI base URL (do not use www — redirects strip auth headers)
LEADLOADZ_TIMEOUT_MSNo30000Request timeout in milliseconds
LEADLOADZ_DISABLE_TELEMETRYNo0Set to 1 to disable anonymous usage telemetry

Tools

search_leads

Search indexed B2B contacts by role, company, location, or technology.

Parameters:

  • query (string, required): Specific natural-language search query
  • limit (number, optional): Max results. Default: 10, Cap: 50

Returns: Verified leads with deliverability scores

verify_email

Check email deliverability in real-time.

Parameters:

  • email (string, required): Email address to verify

Returns: Deliverability score and risk assessment

get_user_stats

Read current usage counters.

Returns: Searches performed, emails verified, and remaining quota

Security

  • Your API key is never logged or exposed in error messages
  • All errors are sanitized to prevent information leakage
  • Communication with Leadloadz APIs uses HTTPS

Support

License

MIT

Frequently asked questions

What is io.github.Ali1041/leadloadz?

B2B lead search and email verification MCP server

How do I install io.github.Ali1041/leadloadz?

It runs on your machine. In Claude Code: claude mcp add leadloadz -e 'LEADLOADZ_API_KEY=<your leadloadz_api_key>' -e 'LEADLOADZ_API_BASE=<LEADLOADZ_API_BASE>' -- npx -y @leadloadz/mcp-server@1.1.3. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.Ali1041/leadloadz need an API key?

Yes. It expects LEADLOADZ_API_KEY, which you set in its configuration.

Is io.github.Ali1041/leadloadz open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.Ali1041/leadloadz?

It is published by Ali1041. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.