LeadGen AI — 100% Claude Powered

Full-stack B2B lead generation platform. No mock data. No third-party lead databases. Everything — lead discovery, enrichment, scoring, and outreach — runs through the Claude API with live web search.

Stack

• Frontend: React 18 + Vite + TanStack Query
• Backend: FastAPI
• Storage: Local JSON file (backend/data/leads.json)
• AI: Claude Sonnet 4 (claude-sonnet-4-20250514) with web_search tool

What Claude Does

Action	How Claude Powers It
Discover leads	Searches the web for real companies + decision makers matching your natural language brief
Enrich leads	Web-searches company news, hiring signals, funding, tech stack, person context
Score leads	Evaluates ICP fit, intent signals, buying stage — returns 0–100 composite score
Generate outreach	Finds a real current hook (recent news/post/hiring), then writes LinkedIn + 3-step email

Quick Start

1. Backend

cd backend
python3 -m venv venv
source venv/bin/activate        # Windows: venv\Scripts\activate
pip install -r requirements.txt
cp .env.example .env
# Edit .env — add ANTHROPIC_API_KEY
uvicorn app.main:app --reload

Backend: http://localhost:8000
API docs: http://localhost:8000/docs

2. Frontend

cd frontend
npm install
npm run dev

Frontend: http://localhost:5173

.env

ANTHROPIC_API_KEY=sk-ant-...
DATA_FILE=data/leads.json

API Endpoints

Method	Endpoint	Description
GET	/api/leads/	List all leads with scores
POST	/api/leads/	Add a lead manually (Claude enriches + scores automatically)
POST	/api/leads/discover	Claude discovers real leads from a natural language brief
GET	/api/leads/{id}	Get full lead detail
POST	/api/leads/{id}/score	Re-score with Claude
POST	/api/leads/{id}/enrich	Re-enrich with Claude web search
POST	/api/leads/{id}/outreach	Generate LinkedIn + 3-step email outreach
DELETE	/api/leads/{id}	Delete a lead

Discover API Example

POST /api/leads/discover
{
  "target": "Automotive ADAS companies in Germany with VP or Director level R&D decision makers",
  "max_leads": 10,
  "auto_enrich": true,
  "auto_score": true
}

Claude searches the web, finds matching companies and people, enriches each record, and scores every lead — all in one call.