Repository: github.com/ale2348/trading-bot · Author: @ale2348

A TypeScript bot for Polymarket 5-minute crypto Up/Down markets — BTC, ETH, SOL, and XRP. It implements a late-window resolution snipe: wait until the outcome is nearly decided, buy the favorite at ~$0.98–$0.99, then hold to resolution for a small payout on each winning cycle.

Live profile using this strategy: @antsaslyku on Polymarket

This repository reads live Polymarket prices and simulates the same entry/exit logic (console + logs.txt). Press Ctrl+C to stop and see balance, P/L, and trade count.

These are real on-chain transactions from @antsaslyku on Polygon. Each pair shows the same pattern the bot follows: buy the favorite late in the window → redeem at $1.00 after resolution.

Approx. gross profit: ~$0.68 on $67 stake (1%) before fees, in ~62 seconds.

How to read these txs: The buy tx interacts with Polymarket: CTF Exchange V2 — USDC out, outcome shares in. The redeem tx settles winning shares back to USDC at $1.00 per share when the 5m window resolves. Repeat this across many windows and P/L compounds — see the full history on polymarket.com/@antsaslyku.

Live Polymarket dashboard — portfolio growth and buy/redeem activity on BTC and XRP 5m markets at 96–99¢:

• Past year P/L: +$82,537.48
• Past day P/L: +$208.04
• 24h Return: +3.51%
• Portfolio Value: ~$3,467

Trade history includes repeated entries in late-stage crypto prediction markets followed by successful redemptions at settlement.

Each 5-minute Up/Down market (BTC, ETH, SOL, XRP) runs for 300 seconds. All four assets share the same window clock — every 5 minutes a new round opens for each.

0s ──────────────── 250s ─── 290s ─ 298s ─ 300s
     wait / monitor      entry      exit   close
                         window    (resolve)

Near the end, when price has usually already moved one way, the likely winner trades just below $1.00:

1. Monitor all four markets (BTC, ETH, SOL, XRP) each poll
2. Wait through most of the window — no early entries
3. Enter in the last ~40s when Up or Down is priced $0.97–$0.99
4. Buy the favorite — up to one position per asset per window
5. Hold to resolution at t = 298s and settle

Many windows produce no trade — normal when no side reaches the price band before time runs out.

• Node.js ≥ 20.6 (package.json)
• Polymarket wallet with USDC on Polygon
• Internet access (Polymarket Gamma + CLOB APIs)

git clone https://github.com/ale2348/trading-bot.git
cd trading-bot
npm install

# Windows
copy .env.example .env

# macOS / Linux
cp .env.example .env

Wallet setup

Never commit .env.

npm start

Optional build:

npm run build

History is appended to logs.txt.

Simulated terminal runs (market conditions vary):

These differ from the live @antsaslyku results above — the repo simulates logic locally; your real P/L depends on balance, sizing, and how often each asset hits the 0.97–0.99 band.

Constants in src/index.ts:

• Small edge, large tail risk — ~$0.02/share at $0.98 entry; one reversal can erase many wins.
• Not every window trades — many cycles never hit 0.97–0.99 in time.
• This repo simulates P/L — live trading requires CLOB order placement and real fills; past on-chain results (@antsaslyku) do not guarantee future performance.
• Not financial advice — use at your own risk.

Polymarket-arbitrage-bot/
├── doc/              # Screenshots (Polymarket profile P/L)
│   ├── daily_pnl.png
│   └── total_pnl.png
├── src/index.ts      # Bot logic and strategy constants
├── .env.example      # Environment template
├── logs.txt          # Runtime logs (created on start)
├── package.json
└── tsconfig.json

This project is open source and available under the ISC License.