How to Replace a 300 USD/mo Enrichment Tool (Clay/Clearbit) with Python FastAPI and n8n

Description and use

A self‑hosted pipeline replaces paid enrichment tools, filtering free emails, scraping company data live, scoring ICP with GPT‑4o‑mini, and alerting high‑score leads to Slack in under 3 seconds.

Problem

B2B teams overpay $300/month for Clearbit or Clay to qualify inbound form submissions.

Outcome

The pipeline processes inbound leads in under 3 seconds, filters out free emails, enriches with live scraped data, scores ICP with GPT‑4o‑mini, and routes high‑score leads to Slack, eliminating a $300/month subscription.

Workflow

• Capture inbound leads via n8n webhook trigger from Typeform, Tally, Webflow, or custom forms.
• Filter out free email providers using a Python FastAPI endpoint.
• Scrape company title, meta description, and homepage copy in real time with httpx and BeautifulSoup4.
• Send scraped data to GPT‑4o‑mini to output JSON with icp_score, priority, recommended_action, draft_reply.
• If icp_score ≥ 70, trigger an instant Slack alert in #sales-alerts via n8n IF node.

Evidence

Most B2B teams overpay 300+ USD/month for Clearbit or Clay just to qualify inbound form submissions.

Source

Here is how to build a self-hosted B2B Lead Triage and AI Enrichment Engine using n8n + Python FastAPI that filters free emails, scrapes prospect company domains live via httpx and BeautifulSoup4, and scores ICP fit (0-100) with gpt-4o-mini in under 3 seconds.

Source

Instant Slack Routing (n8n IF Node): Leads scoring 70+ trigger an instant alert in #sales-alerts.

Source