LeadSpark

Research any company or person from your AI IDE. Get company info, tech stack, contacts, and emails - all without leaving Cursor, Claude Code, or Windsurf.

What it does

LeadSpark is an MCP server that gives your AI agent the ability to research companies and find contacts. Type "research stripe.com" and get back structured company data from 6+ free data sources.

Tools

Tool	Description	Data returned
research_company	Full company enrichment	Name, description, industry, HQ, founded year, employees, tech stack, social links, email provider, hosting
find_contacts	Find people at a company	Names, titles, LinkedIn URLs, probable email addresses
lookup_tech_stack	Detect website technologies	CMS, frameworks, analytics, CDN, hosting, chat tools, payments (60+ fingerprints)

Data sources (all free)

• Website scraping (meta tags, Schema.org JSON-LD, about pages)
• DNS/MX records (email provider, hosting detection)
• SSL certificates (organization name, location)
• Built-in tech fingerprints (60+ technologies)
• GitHub API (org data, team members, languages)
• DuckDuckGo Instant Answers (Wikipedia summaries, company facts)
• Email pattern detection (first.last@, flast@, etc.)

Setup

Claude Code

Add to your MCP config (~/.claude.json or project settings):

{
  "mcpServers": {
    "leadspark": {
      "command": "npx",
      "args": ["-y", "leadspark-mcp"]
    }
  }
}

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "leadspark": {
      "command": "npx",
      "args": ["-y", "leadspark-mcp"]
    }
  }
}

Windsurf

Add to MCP settings:

{
  "mcpServers": {
    "leadspark": {
      "command": "npx",
      "args": ["-y", "leadspark-mcp"]
    }
  }
}

Optional: Set environment variables for better results

# Higher GitHub API rate limits (5K -> 15K requests/hour)
export GITHUB_TOKEN=your_github_token

# Hunter.io for email verification (50 free lookups/month)
export HUNTER_API_KEY=your_hunter_key

Example output

> research stripe.com

# Stripe, Inc
**Description:** Stripe is a financial services platform...

## Company Info
- Industry: Financial Services
- Headquarters: South San Francisco, California, US
- Founded: 2011
- Employees: 3029+ GitHub followers
- Email Provider: Google Workspace
- Hosting: AWS

## Social Links
- GitHub: https://github.com/stripe

## Tech Stack
- Framework: React, Next.js
- Analytics: Google Analytics
- Payments: Stripe

Development

git clone https://github.com/yourusername/leadspark-mcp
cd leadspark-mcp
npm install
npm run dev

License

MIT