Server-side take-profit, stop-loss and trailing stops for 15-minute prediction markets — plus base rates measured from each market’s own settled history. Runs on your machine. Your API key never leaves it.
Get Casu$10/month · cancel anytime · Windows & Mac · one paste
What’s inside
The exchange gives you the market. Casu gives you the seatbelts and the instrument panel.
Take-profit fires a price-protected marketable-limit. Stop-loss fires a true market order, so you get out even when the book gaps. Trailing stops ratchet up and never down. All persisted to disk — they survive restarts and fire with no browser open.
Cross odds, swing odds, streaks and lead flips — measured from each market’s own settled history over a rolling 28 days. Any cell with under 30 observations shows nothing rather than a made-up number.
BTC, ETH, SOL, XRP, DOGE, HYPE, BNB, NEAR, ZEC, plus WTI crude, gold and silver. A watchlist strip shows every market’s live odds at once, and brackets keep working in markets you’re not looking at.
MOCK is offline and riskless. PAPER trades a $1,000 pretend balance against real live order books — placing a real order there is structurally impossible. Only LIVE touches money, behind a confirmation.
The engine runs on your machine and is the only place your exchange API key lives. It talks to the exchange directly — no hosted middleman holding your credentials, adding latency, or going down at the wrong moment.
We tested RSI, MACD, ADX and MA crossovers over 17,236 settled 15-minute windows. They won 47.4% — worse than a coin flip — so Casu doesn’t ship them. It ships what measurement actually supported.
Trading these markets today
You buy a 15-minute contract and now you’re a hostage: the exchange has no stop-loss on these markets, so the only exit is you, watching. Step away for two minutes and a flip takes the whole stake. Close the laptop and any browser-based tool dies with the tab. And every sizing decision runs on gut, because nobody shows you what these exact markets actually did the last thousand times they looked like this.
Trading with Casu
Every entry can carry a bracket from the moment it fills. The engine watches all twelve markets at once — including the ones you’re not looking at — and keeps watching with the browser closed. Before you click, the chart shows the measured base rate for exactly this situation. If you never want to hold into settlement, auto-flatten closes everything before the bell. You still make the calls. You just stop being the only safety mechanism.
How it works
Who makes this
Hi, I’m Chris. I built Casu because I wanted to trade these markets with seatbelts on, and the exchange doesn’t sell seatbelts. I’m not the smartest or the fastest builder you’ve ever met — I’m the most relentless, and this tool gets sharpened every week I trade with it myself. It runs on your machine because that’s the only design I’d trust with my own API key.
— Chris
Pricing
$10/month · cancel anytime
One paste to install. Cancel anytime — your stops keep working through the end of your billing period.
Buy CasuThe hard questions
Yes. These are fast markets and a contract can go to zero in minutes. Stops cap your downside but can’t guarantee a price — a stop-loss is a market order, and in a gapping market it can fill below your level. Casu is a risk-management tool, not a profit machine, and nothing on this site is financial advice.
No. Casu is independent client software, not affiliated with or endorsed by any exchange. You trade on your own account, under the exchange’s own rules and fees, with your own API key.
No. You place every entry yourself. Casu automates your exits — take-profit, stop-loss, trailing stops and optional auto-flatten — exactly where you set them.
Casu is a flat subscription and adds nothing per trade. The exchange’s own trading fees apply, and at a 15-minute cadence taker fees genuinely matter — PAPER mode lets you feel that with pretend money first.
In a local file on your machine, read only by the engine process, sent only to the exchange. It never touches our servers — we don’t have any. The command API binds to localhost and refuses other origins.
For stops to fire, yes — the engine is the thing watching the market, and it runs on your machine. The install registers Casu to start at login and restart if it crashes, so it comes back with your brackets armed.
Windows 10/11 or macOS. The one-paste install brings everything with it, including its own runtime — no prerequisites, no admin rights, nothing system-wide.
The 15-minute markets Casu connects to trade on a CFTC-regulated US exchange. Casu is client software for your own account there — it doesn’t take deposits, hold funds, or place trades you didn’t ask for.
Get Casu, paste your personal command, and watch a stop-loss fire in mock before you risk a cent.
You get your personal command at checkout — one paste in PowerShell (Windows) or Terminal (Mac), no installer, no admin rights.
Buy Casu$10/month · cancel anytime