CooK
a crypto news & price research app for macOS, Windows & Linux
crypto twitter says news moves price. i wanted to know if that's actually true, so i built a thing that checks. CooK sits in your menu bar (or system tray), streams live prices for the coins you pick from the exchange you choose — Binance, Coinbase, or Kraken — collects matching headlines from about 2,300 news sources, and keeps everything in a little database on your machine.
then it runs real statistics on what it collected — event studies, lagged correlations, Granger causality — to test whether the news led the price move, or just showed up after it. spoiler: it's usually after.
↓ download for macOS ↓ download for Windows ↓ download for Linux (links coming soon — the app is real, the hosting isn't)
what it actually does
- live 1-minute candles for the pairs you watch, with 7 days of history backfilled
- real-time headlines matched to your coins, each scored for sentiment
- optional smarter sentiment via the AI of your choice — Gemini, OpenAI, Anthropic, or a local Ollama model — per-coin mood, impact estimate, rumor flag
- a paper-trading ledger: rules fire predictions on live news, and every prediction is graded against real prices later. nothing is tuned in hindsight.
- extras for the curious: story clustering, volume-spike confirmation, volatility regimes, cross-coin lead-lag
- runs quietly from the menu bar / tray; your data stays on your machine, survives restarts, and can be backed up or merged across machines
what it is not
it is not a trading bot, it does not touch your money, and it will not tell you what to buy. it's a research instrument — a microscope, not a slot machine.
[ honest caveats ]
- aggregate sentiment usually lags price in crypto. the interesting findings are discrete events — listings, hacks, regulation — not mood.
- with many lags and buckets tested, some "significant" results appear by pure chance. don't trade a signal you haven't validated out-of-sample, with fees and slippage.
- the free news tier can deliver some items with a small delay.
- nothing on this page is financial advice. obviously.
needs
- a computer running macOS, Windows, or Linux (it lives in the menu bar / system tray)
- an internet connection — prices come from your chosen exchange (Binance, Coinbase, or Kraken), news from Tree News
- optionally, an AI key for the enrichment — Gemini's free tier is enough, or run a local Ollama model and pay nobody
questions, bugs, arguments about Granger causality: ozgehan@notsoft.net