Polymarket Trading Bot: Best Trading Bots for Crypto Quant Traders in 2026

What Is Polymarket Trading Bot?

Polymarket Trading Bot is an open-source Trading Bot built by Krypto-Hashers-Community for crypto quant traders automating trades on Polymarket's binary markets like 'Bitcoin up or down in the next 15 minutes'. It subscribes to specific markets by coin (BTC, ETH, SOL, XRP) and period (5, 15, 60, 240, 1440 minutes), pulls live CLOB WebSocket order book and RTDS price feeds, and implements two strategies: trend-following directional trades and binary arbitrage when UP + DOWN prices sum below $1 minus a threshold. Polymarket Trading Bot is one of the best Trading Bots for crypto quant traders, with 288 GitHub stars as of February 2026 and 53 forks, currently in framework mode with order placement commented out for safe signal logging before live deployment.

Quick Overview

Who Should Use Polymarket Trading Bot?

• Solo quant developers testing Polymarket strategies who need a TypeScript framework for WebSocket-based order book analysis without building from scratch.
• High-frequency traders monitoring BTC/ETH 5-minute binaries requiring configurable TOML params for entry/exit ratios and simulation mode.
• Arbitrage specialists scanning for UP/DOWN price inefficiencies where velocity exceeds thresholds to lock margins on mispricings.
• Backtesters using simulation=true to validate trade_1 time/price exits or trade_2 range-based flips over historical RTDS data.

Not ideal for:

• Beginners unfamiliar with Polymarket's CLOB API needing full GUI dashboards instead of CLI/TOML config.
• Multi-exchange traders requiring CCXT integration beyond Polymarket's single venue.
• Low-latency HFT firms demanding Rust performance over TypeScript's interpreted runtime.

Key Features of Polymarket Trading Bot

• Market Selection — Supports BTC, ETH, SOL, XRP coins with periods 5m, 15m, 60m, 240m, 1440m via trade.toml; subscribes dynamically to WebSocket feeds for targeted monitoring.
• Live Data Feeds — Connects to Polymarket CLOB WebSocket for order book snapshots and RTDS (e.g., BTCUSDT/Chainlink) for velocity calculations, updating prices every few seconds.
• Trend-Following Strategy (trade_1) — Detects short-term order book price momentum; buys UP/DOWN within entry_price_range and exits on exit_time_ratio (elapsed/market duration) or exit_price_ratio from 0.5 midpoint.
• Binary Arbitrage (trade_2) — Triggers when price velocity > threshold and UP buy + DOWN buy < 1 - min_arb_price_difference; buys both sides to capture guaranteed margin on binary outcomes.
• TOML Configuration — Defines [market], [trade_1], [trade_2] sections with params like entry_price_ratio [min,max], exit_price_ratio_range arrays, emergency_swap_price for flips.
• Simulation Mode — Sets simulation=true in trade.toml to log signals without order submission; enables dry-run testing of strategies over live data.
• Emergency Swaps — Post-exit, checks if up-price in emergency_swap_price band to flip position (sell UP then buy DOWN or vice versa) for risk management.

Polymarket Trading Bot vs Alternatives

Hummingbot suits multi-venue liquidity providers with its market-making templates, but lacks Polymarket-specific binary logic—use it for general crypto pairs. Freqtrade excels in historical backtesting across Binance/Bybit, picking it over Polymarket Trading Bot for non-binary perpetuals. CCXT Pro provides raw WebSocket access without built-in strategies, ideal for custom bots needing broad exchange support. browse all Trading Bots tools

How Polymarket Trading Bot Works

Polymarket Trading Bot runs as a Node.js TypeScript app, initializing WebSocket clients to Polymarket's CLOB endpoint for order book depths and RTDS for oracle prices like BTCUSDT. Core loop in src/ fetches snapshots, computes up-price = UP bid price, down-price = 1 - DOWN ask (normalized to binary), velocity as delta over 10s windows. Decision engine in decision.ts evaluates trade_1 or trade_2 against TOML params, logging signals or simulating trades; live mode uncomments sellUpToken()/buyDownToken() calls to private_key-signed orders via Polymarket SDK.

Data model uses TOML for state: market_coin/period define subscription topic (e.g., 'btc-15m'), strategy sections hold ratios (0.0-1.0 floats). Architecture separates WS_CLOb.ts for feeds, decision.ts for logic, avoiding tight coupling—restartable without position loss via position tracking in memory.

Philosophy prioritizes configurability over black-box AI: explicit thresholds let quants tune for 5m volatility vs 1440m stability. No database; ephemeral state suffices for single-market focus.

# Clone and install
 git clone https://github.com/Krypto-Hashers-Community/polymarket-trading-bot.git
 cd polymarket-trading-bot
 npm install

# Copy config and edit
 cp .env.example .env
 cp trade.toml.example trade.toml  # edit market_coin="btc", market_period="15"

# Run in simulation
 npm start

This installs dependencies from package.json (TypeScript, WebSocket libs), loads .env for API keys/private_key, parses trade.toml for strategy params. Console outputs live prices, velocity, signals like 'trade_1 BUY UP at 0.52'; no orders sent until simulation=false and trade calls uncommented. Expect 1-5s latency on WS updates, position state printed per tick.

Pros and Cons of Polymarket Trading Bot

Pros:

• Zero-cost entry with full TypeScript source for custom extensions like multi-market parallelism.
• Precise binary arbitrage detection: locks margins when UP+DOWN <0.98 (configurable), exploiting Polymarket inefficiencies seen in 5m BTC markets.
• Flexible TOML config supports 10+ params per strategy, enabling backtests via simulation over weeks of data.
• Lightweight runtime: <100MB memory, sub-1s startup, runs on VPS for 24/7 monitoring.
• Real-time velocity from RTDS/Chainlink avoids laggy REST polls, critical for 15m trends.
• Modular design: swap decision.ts logic without touching WS layer.

Cons:

• Single-venue lock-in to Polymarket; no CCXT for cross-exchange arb like Augur/gnosis.
• Order placement disabled by default—requires code edits and private key exposure in .env.
• No built-in backtesting engine; simulation replays live only, lacks historical replay.
• Lacks position sizing/risk limits beyond stop_loss placeholders.
• TypeScript compilation adds 500ms overhead vs native JS on high-frequency ticks.
• Undocumented emergency_swap logic may flip prematurely in volatile 5m periods.

Getting Started with Polymarket Trading Bot

Start by cloning the repo and installing Node.js 20+. Edit trade.toml for [market] coin/period and strategy thresholds, e.g., trade_1.exit_time_ratio=0.8, trade_2.entry_price_ratio=[0.45,0.55]. Add Polymarket private_key to .env for live trades.

npm install
cp .env.example .env  # Add PRIVATE_KEY=0x...
cp trade.toml trade.toml  # Set simulation = true initially
npm run dev  # Or npm start for prod

Post-install, the bot connects to WS endpoints within 2s, subscribes to e.g., btc-15m, streams order book/RTDS. Logs show 'Connected', price updates every 100-500ms, signals fire on conditions—e.g., 'Signal: BUY DOWN, velocity=0.03 > 0.02'. Configure RPC_URL if using custom Polygon node for tx signing. Scale to Docker for prod: add volume for trade.toml, expose logs via stdout.

For live trading, set simulation=false, uncomment trade calls in ws_clob.ts/decision.ts, fund wallet with USDC on Polygon. Test on 1440m markets first (lower vol) before 5m. Monitor gas costs: ~$0.01/tx at 20 gwei.

Verdict

Polymarket Trading Bot is the strongest option for crypto quant traders targeting Polymarket binaries when building custom TypeScript strategies around CLOB mispricings. Its TOML-driven trade_1/trade_2 logic delivers precise entries/exits with simulation safety, backed by 288 stars. Caveat: enable live orders manually and add risk controls for production. Deploy it now for edge in short-term BTC/ETH trends.