Reddit Bitcoin Sentiment Tracker whenlambo.live

Track real-time Bitcoin price and Reddit sentiment on one chart. See if the mood matches the moon. Updated every minute. Data-backed answer to the timeless question: When Lambo?

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Inspiration

Crypto markets are driven by emotion as much as data—and Reddit is where that emotion lives. We wanted to create a dashboard that shows the pulse of Reddit’s mood about Bitcoin in real time, minute by minute, alongside the actual BTC price. The vision: a Bloomberg terminal for degenerates. And we wanted to do it the hard way—with just a single prompt on Bolt.new.

What it does

whenlambo.live tracks Reddit sentiment and Bitcoin price in real time. Every 60 seconds, it:

  • Scrapes Reddit comments from top crypto and finance subreddits
  • Calculates an overall sentiment score
  • Fetches the current Bitcoin price via the Polygon.io API
  • Plots both values as dual-line time series data on a live updating chart

The result is a financial mood ring for the Bitcoin community, visualized like a trading terminal.

How we built it

  • We built the entire frontend interface with a single prompt using Bolt.new, feeding it custom API data and chart requirements
  • Supabase powers the database and handles scheduled cron jobs to fetch and store fresh data every minute
  • Node.js scripts analyze Reddit content and call the Polygon API
  • Chart.js renders a smooth, interactive dual-line chart showing sentiment vs. price
  • Tailwind CSS gives the app a clean, reactive visual feel

No refreshing, no logins—just open the page and watch the market’s emotions unfold.

Challenges we ran into

  • Polygon’s API required exact formatting of timestamp queries—down to the second
  • Sentiment scoring Reddit data is messy: sarcasm, slang, and shitposts skew everything
  • Making a Bolt.new app behave like a stock terminal meant pushing its visual fidelity hard
  • Keeping the data pipeline lean enough to run on a free Supabase tier was a challenge in efficiency

Accomplishments that we're proud of

  • We built the entire dashboard from scratch in one Bolt.new prompt—no manual UI coding
  • Created a self-updating, browser-native analytics app that’s actually addicting to watch
  • Shipped a working crypto sentiment tracker in a weekend that looks and feels professional

What we learned

  • You can build real, useful, even beautiful apps using just one well-written prompt
  • Supabase + Bolt.new + streaming chart data = a powerful low-code data product stack
  • Reddit is the world's loudest financial panic button—and we captured it live

What’s next for Reddit Bitcoin Sentiment Tracker – whenlambo.live

  • Add timeframe toggles (1H, 24H, 7D) and rolling averages
  • Train a more advanced financial sentiment model with crypto-specific tuning
  • Let users compare sentiment across coins, not just BTC
  • Add news annotations, top comment highlights, and meme trend overlays
  • Open-source the backend data feed and allow export of price/sentiment deltas

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