The Casu guide
From one pasted command to live brackets, with two risk-free practice modes in between.
1 · Install
Your personal install command — license key baked in — is shown at checkout and sent in your purchase email. It looks like this:
Windows — paste into PowerShell:
Mac — paste into Terminal:
One paste does everything: downloads Casu into your home folder with its own runtime included (no prerequisites, no admin rights), verifies the download, activates your license, registers Casu to start at login, and opens the terminal. Re-running the command later is always safe — it updates in place and never touches your config or trading data.
2 · Start in mock
The install leaves you at http://localhost:3000 in MOCK — synthetic markets, fake money, no network, no keys. The Casu shortcut (Start Menu / Applications) reopens it anytime. This is the place to learn the screen:
- The watchlist strip shows every market’s live odds; click a tile to focus it.
- The ticket buys YES or NO, sized in dollars or shares, with a two-step confirm.
- Attach a take-profit and stop-loss to the entry, or drag the TP/SL lines on the odds chart afterwards.
- The Activity log records fills, bracket fires and window rolls as they happen.
One pricing rule worth learning early: the price you can sell at (the bid on your side) sits below the price you bought at by the spread. A stop-loss set inside that spread can fire immediately — give it room below the bid, not below your fill price.
3 · Paper trade the real market
Switch to PAPER in the settings menu (you’ll need an API key from your exchange account so Casu can subscribe to live prices — the key is used only to read). Orders go to a built-in simulator with a $1,000 pretend balance: market orders fill against the real live book, limits rest until the market actually trades through them. It’s the honest rehearsal — real speed, real spreads, fake money. A Reset button restores the balance any time.
4 · Go live
- In your exchange account, create an API key. You get a key ID and a private key file (
.pem). - In Casu, open the settings menu and choose the exchange API panel. Paste the key ID, add the
.pem(paste it or pick the file), and apply — Casu runs a read-only preflight check and shows you each item pass/fail. No config files to edit. - Pick LIVE from the settings menu. LIVE always asks for a real-money confirmation.
The engine keeps itself running. Stops fire from the engine process on your machine — so the install registers it to start at login and restart on failure. Brackets persist to disk, and a restart comes back with your stops armed. Turning it off is deliberate: the shutdown button in settings, which warns you if armed brackets would be left unwatched.
Reading the signals
Everything beyond price is a measured readout, never a buy signal:
| Readout | What it answers |
|---|---|
| Cross odds | Spot is this far from the strike with N minutes left — how often did it end up on the other side? |
| Swing odds | How often did a contract at this price move Δ¢ before the bell? |
| Streak | How often did a run of N same-direction windows continue? |
| Lead flips | How often did the leading side change again before settlement? |
All four are base rates from that market’s own settled history over a rolling 28 days. A cell with too little history shows nothing — Casu would rather show you a gap than a guess.
Safety, plainly
- Only LIVE places real orders. MOCK and PAPER cannot — no real order client is even wired in.
- Your API key lives in a local file, read by the engine, sent only to the exchange.
- A stop-loss is a market order: it gets you out, but in a gapping market the fill can be below your level.
- These markets move fast and a contract can go to zero. Trade money you can afford to lose. Nothing in this guide is financial advice.