shashank

What it is Echo is a web app that lets you have a real-time voice conversation with any historical figure. Type a name, and within seconds you're talking to that person — powered by their real biography, beliefs, and speech patterns. How it works Three APIs chained together, each one's output feeding the next: 1. Firecrawl scrapes the figure's Wikipedia page and returns clean structured data — biography, beliefs, quotes, historical context. 2. OpenAi transforms that raw data into a complete persona: personality traits, speech style, key beliefs, and a system prompt that makes the AI convincingly speak as that person. 3. ElevenLabs Conversational AI hosts the live two-way voice conversation. Not text-to-speech — a full voice agent that listens, understands, and responds in real time over WebSocket. What makes it special → Grounded in real data, not hallucination — every persona is built from actual Wikipedia content → Works for anyone — if Wikipedia has an article, you can talk to them → Live voice, not chat — you speak, they respond, in real time → Every conversation generates a shareable public URL → 3 APIs working as one pipeline: scrape → extract → converse

Submitted 26 Mar 2026