Live — Polygon blockchain, real trades

Trade in the shadows of
the best Polymarket traders

Automatically copy top Polymarket traders. Track wallets, set your limits, let the bot execute — while you sleep.

Download for Windows Download for Mac
$2.4B+
Polymarket volume tracked
1.8s
Copy execution latency
24/7
Fully automated
0%
Commission on profits
Your edge

Your algorithmic edge on Polymarket

🕐
Stop monitoring the feed.

24/7 Autonomy

The best trades often happen when you're offline. Shadower tracks your selected wallets and executes orders around the clock. Focus on strategy, not on refreshing the page.

⚡
Enter before the crowd.

First-mover advantage

In copy trading, slippage eats your profit. Shadower reacts to a whale's move in ~1.8 seconds — getting you better odds before the market adjusts.

📈
Track a whole list of whales at once.

Scale without chaos

You don't have to pick one favorite. Add multiple top wallets to a single list and the bot turns their activity into one clean, consistent trade flow. No more tab-switching to catch everything.

🛡️
Trade by rules you set yourself.

Risk control without spreadsheets

Set a maximum bet size and daily loss limit — the bot will never exceed them. No emotional oversizing at 3am.

Under the hood

Full-cycle automation

What happens every single time a tracked trader makes a move.

👤
Step 1

Signal

A top trader opens a position on Polymarket (e.g. a YES outcome).

⛓️
Step 2

Polygon network

The smart contract confirms the transaction and writes it to the blockchain.

⚡
Step 3

Detection · 1.8s

Shadower scans blocks via WebSocket connection in real time, finds the trade and instantly analyzes it.

✅
Step 4

Execution

Your bot opens an equivalent position. Size is proportional to your balance, within your set limits. Trade done.

No notifications. No manual confirmations. Shadower runs in the background 24/7.
Live feed

Watch trades happen in real time

Every trade from every wallet you track — streamed from the blockchain and copied instantly.

Live copy feed 3 wallets tracked
Trader wallet → market → copied amount
Loading trades…
Real results

Real traders. Real numbers.

Verified wallets from Polymarket's public leaderboard. Public data, last 30 days.

View top traders leaderboard →
Best Polymarket traders to copy →

Public data from polymarket.com/leaderboard · Last 30 days · Past performance ≠ future results.

Features

Everything you need, nothing you don't

⚡

Real-time WebSocket

Connects directly to Polygon blockchain via your Alchemy key. ~1.8s copy detection on every new block.

👥

Multi-wallet tracking

Track multiple traders simultaneously. Toggle each wallet on/off without restarting the bot.

🎯

Proportional sizing

Automatically scales copied bets to your bankroll. Trader bets $1000, you bet your configured %.

🛡️

Risk controls

Max single bet, daily loss cap, min/max bet filters. Your capital, your rules.

🤖

Auto-sell

Automatically sells your position when price hits 99¢. Adjust the target or disable it entirely — you stay in control.

🌍

8 languages

English, Russian, Chinese, Spanish, Portuguese, Turkish, Korean, Ukrainian — full UI translation.

See it in action

The app, no filters

Shadower desktop application showing real-time Polymarket copy trading results
Security & Privacy

Your keys never leave your machine

Shadower runs locally. We don't see your trades, your keys, or your wallet addresses.

🔑

Local private key storage

Your Polymarket private key is stored encrypted on your device only. Never transmitted to our servers.

🏠

Desktop app, not cloud

All logic runs on your Windows or macOS machine. No cloud execution, no third party holding your funds.

🔒

Your own RPC key

Use your free Alchemy account for WebSocket access. You control the API key, not us.

🚫

No withdrawal permissions

The bot only places bets — it cannot withdraw funds. Your USDC stays safe even if something goes wrong.

Pricing

One price. Everything included.

No commission on profits. Cancel anytime.

Monthly
$39$27 / mo
SAVE 31% — limited time
  • ✓Unlimited wallet tracking
  • ✓Real-time WebSocket copy
  • ✓Full P&L analytics
  • ✓Risk controls
  • ✓All 8 languages
Best Value
Yearly
$468$319 / yr
SAVE 31% — $26.58/mo · 2 months free
  • ✓Everything in Monthly
  • ✓Priority support
  • ✓Early access to new features
  • ✓Best rate — locked in
Not sure yet? Start your free 3-day trial — no card required.
✓ Legal on Polymarket  ·  ✓ No hidden fees  ·  ✓ Cancel anytime
Zero custody

Your private key never leaves your computer

Shadower never touches your funds. Your key is encrypted on your device — we have zero access, zero custody, zero risk from our side.

AES-256 encryption
✓ What happens to your key
1
You enter your key once Pasted into the Setup wizard on your local machine. Never typed into a web form.
2
Encrypted with AES-256 Immediately encrypted using AES-256 before anything else happens. Industry-standard, same as banks.
3
Stored only on your disk The encrypted file lives in your app data folder. Only your machine can decrypt it.
4
Signs transactions locally When placing a bet, the key signs the transaction on your machine. Only the signed tx goes to Polymarket — not the key.
✕ What Shadower never does
✕
Never sends your key to a server There is no upload, no sync, no backup to our infrastructure. Zero network transmission of your key.
✕
Never stores keys in the cloud No database, no cloud storage, no third-party vault. Your key exists in exactly one place: your device.
✕
No access to withdraw your funds The bot can only place bets on Polymarket. It cannot move, withdraw, or transfer your USDC balance.
✕
We can't access your account — ever Even if our servers were compromised, attackers would find nothing. Your key was never there.
FAQ

Common questions

Is using a copy-trading bot legal on Polymarket?
Yes. Polymarket has no restrictions on automated trading — their public CLOB API is designed for programmatic access. Trading bots are fully legal in prediction markets. Shadower places orders through the official API, the same way any trader would manually.
Does the app place trades on my behalf automatically?
Yes. Once configured and running, Shadower detects trades from tracked wallets in real time and places matching orders on your Polymarket account automatically — no manual action needed.
Is my Polymarket private key safe?
Your private key is stored only on your local machine and encrypted. It is never sent to our servers. Shadower is a desktop app — we have no access to your keys or your trades.
Do I need a technical background to use it?
No. Install the app, enter your Polymarket wallet key and a free Alchemy API key, add wallet addresses to track, and press Start. The setup wizard guides you through each step.
What is Alchemy and why do I need it?
Alchemy is a free blockchain infrastructure provider. Shadower uses their free WebSocket API to monitor the Polygon blockchain in real time. A free Alchemy account is sufficient — no payment required.
Which platforms are supported?
Windows 10/11 (64-bit) and macOS. Linux version is planned.
Shadower won't open on macOS — what do I do?
Go to System Settings → Privacy & Security. Scroll down to the Security section — you will see "Shadower was blocked from use because it is not from an identified developer". Click "Open Anyway" and enter your Mac password.
Can I cancel my subscription?
Yes, anytime from the billing portal. You keep access until the end of the current billing period. No questions asked.
Get started

Start copying the best traders today

3-day free trial. No credit card. Setup in under 5 minutes.

Download for Windows Download for Mac

Trading prediction markets involves risk. Past performance of tracked wallets does not guarantee future results. Shadower is a tool, not financial advice. Only trade with funds you can afford to lose. Not affiliated with Polymarket, Inc.