NEW OKX × Predict.fun · BTC/ETH 5m & 15m

Catch price gaps between exchanges faster than the market

Prophet Bot watches up/down order books across exchanges 24/7, computes the spread net of every fee and opens a hedge within milliseconds once the edge hits your target.

Free plan forever No card required Your keys stay with you
BTC · 5m · OKX ↔ Predict.fun
00:00

OKX ask

UP0.512
DOWN0.497

Predict.fun ask

UP0.538
DOWN0.471
Gross+1.7%
Fees−1.6%
Net edge+0.1%
Waiting for signal · target ≥ 2.0%—
Interface illustration. Numbers are simulated for demo purposes and are not trading results.

Works with

OKX Predict.fun Polymarket soon
Up and running in 5 minutes

Three steps to your first signal

No code, no terminal: the setup wizard walks you from install to launch.

01

Download and sign up

Install the app on Mac or Windows and create an account with your e-mail. The Free plan is active right away.

02

Connect your exchanges

Add API keys to the encrypted vault. The bot checks authorization, permissions and balances and tells you what to fix.

03

Set a target and go

Pick BTC or ETH, a 5m/15m horizon, size and target edge. Test in paper mode on live order books first.

Transparent math

You see every number the bot sees

No black boxes. The signal follows a simple formula, and every fill is logged with its exact price, size, fee and latency.

  • Each exchange's fees are priced in before entry, not after
  • Order book depth: the bot prices your actual size, not just the top level
  • A price buffer and a max-loss cap on the second leg guard against slippage
Ask UP (OKX)0.468
Ask DOWN (Predict.fun)0.497
Gross = 1 − (UP + DOWN)3.50%
Fees, both legs−1.62%
Signal edge+1.88%
Features

Built for speed and control

Millisecond reaction

Quotes over WebSocket, orders over pre-warmed connections. The bot gets in while the spread still exists.

Parallel and Sequential

Both legs at once, or "smart" mode: the first leg goes to the exchange where price is trending.

Paper mode on live data

Test your strategy on real order books with zero risk before putting money in.

Balances and daily PnL

All exchanges on one screen: balances, positions and daily change update automatically.

Minimal settings

Size, target edge, price buffer, max loss. The bot handles the rest.

Your PC or your own VPS

Run it on your computer or on a server close to the exchanges for minimal latency, 24/7.

Security

Your keys never leave your computer

We never store your API keys and have no access to your funds. Our server only issues a license; every order is signed locally.

  • AES-256-GCM vault, keyed from your password
  • OKX keys with withdrawal rights are rejected outright
  • Risk limits are set locally: not even our server can make the bot trade more

Your PC or VPS

  • Encrypted key vault
  • Local order signing
  • Direct exchange connections
↕ license status only · no keys, signatures or orders

Prophet Bot server

  • Account and subscription
  • App updates
Pricing

Start free. Pay when you go live

Scan markets and paper trade for free. Upgrade to Pro to place real orders.

Free

See the market and test your strategy risk-free

$0/ forever
 
  • Real-time spread scanner
  • Paper trading on live order books
  • Key and balance checks
  • 1 device
  • Real orders
  • Sequential "smart"
Download free
Most popular

Pro

Automated live trading for one trader

$49/ 30 days
 
  • Everything in Free
  • Live trading with real orders
  • Parallel execution of both legs
  • Balances and daily PnL
  • 1 device
  • Sequential "smart"
Choose Pro

Elite

Every tool for serious traders

$99/ 30 days
 
  • Everything in Pro
  • Sequential "smart": trend-led first leg
  • 2 devices (e.g. PC + VPS)
  • Priority support
  • Early access to new exchanges
Choose Elite

Pay in USDT for the term you choose, no auto-renewal. When the term ends, your account drops back to Free automatically.

FAQ

Frequently asked questions

How does the bot make money?

On up/down markets, the UP price on one exchange plus the DOWN price on another sometimes adds up to less than 1. The bot buys UP on one and DOWN on the other when the gap, after all fees, exceeds your target edge.

Is this risk-free arbitrage?

No, and we're upfront about it. Exchanges settle on different price sources (the OKX index, Chainlink, their own rules), so when the close is very near the strike, outcomes can differ. The second leg can also fill only partially. The bot limits these risks with a price buffer, a max-loss cap and position sizing, but cannot remove them entirely.

Can you access my funds?

No. Keys are stored only on your device, encrypted, and orders are signed locally. The bot rejects OKX keys with withdrawal rights, and for Predict.fun and Polymarket we recommend a separate trading wallet with a limited balance.

How much money do I need to start?

None for the Free plan: the scanner and paper mode run on live data. For live trading, start with the minimum position size and scale up gradually.

Does my computer need to stay on?

The bot trades while it is running. For 24/7 operation, install it on a VPS. Elite allows 2 devices at once.

How do I pay?

With crypto (USDT). In your account, pick a plan and term, send the amount to the address shown and paste the transaction hash. Once it is verified, the plan is activated. Your account also shows licence status, connected devices and payment history. There is no auto-renewal.

Which exchanges are supported?

Today: OKX and Predict.fun, BTC and ETH markets with 5- and 15-minute horizons. Polymarket is already connected for quotes; trading is coming soon.

See live spreads today

Download Prophet Bot for free. The scanner and paper mode need no card.