Hey n8n community! 
We built a set of zero-overhead, deterministic edge workflow nodes to slash OpenAI & Anthropic API bills and clean web content before hitting vector stores:
- Clean Web-to-Markdown Scraper [API-01] : Extracts pure markdown without running headless browsers (<30ms).
- TokenSlimmer AST Compressor [API-09] : Prunes noise and whitespace to cut LLM token costs by up to 70%.
- SEPA VoP & IBAN Validator [API-138] : Compliant with the 2025/2026 European EPC042-25 banking mandate.
How to import this workflow:
Simply copy the JSON code block below and press Ctrl+V (or Cmd+V) directly inside your n8n canvas:
Resources & Free Sandbox
- Official Gateway : https://topaigateway.com
- Free Sandbox Tier : 100 requests/month without credit card.
- Full API Documentation : TopAI Documentation · Sovereign Enterprise AI Gateway