Prediction market tools.

Macro-release calendar (CPI, FOMC, PCE, NFP) paired with live Polymarket prices and surrounding news context. By AlphAI. Not affiliated with Polymarket.

Free, code-only prediction-market bot challenge from Builderr and YeNo. Build a bot for YeNo BTC five-minute Up/Down markets and submit a frozen version for a 24-hour paper run with $10 in simulated cash. Qualify by completing $1,000 in executed BUY-plus-SELL volume while flat; each BUY is capped at $5 including fees. $500 first prize. No YeNo account, deposit, trading key, or real-money trades are required. Full rules and starter kit: https://builderr.ai/challenges/yeno-volume-bots

Cerious Systems

Professional & institutional trading platform for event contract, futures and spot market. Kalshi, CME, Coinbase, Polymarket (Lighter in dev). Unified view of orders, fills, and p&l. multi exchange, multi asset spreader. C++ modular design with Kalshi server based in o

Racinglines

We are early stage but plan to launch an alpha version this week. (This means web abb feature-complete, `racinglines` on pypi, MCP tool working.) All are currently free/ open-source at least thru end of this year. We are exploring pricing for next year but will always offer some free tier. I am looking for feedback right now on how this platform can help me/ what I might need to improve/ change to fulfill selection criteria. Thanks. gh: github.com/lalligagger/racinglines-public

Hosted Polymarket copy-trading, pick a leader, set your risk parameters, and the bot mirrors their positions into your own wallet. No VPS, no code required.

OddsFantasy

Sports trading terminal for Polymarket. OddsFantasy prices every Polymarket sports market against sharp sportsbook lines (Pinnacle and others) in real time, so you see where Polymarket is mispriced before you trade. Includes a live odds screen comparing Polymarket with sportsbooks, Positive EV signals, one-click gasless trading from an embedded wallet, take-profit, stop-loss and time orders, automated entries, position tracking and Telegram alerts. Free trading terminal; paid plans add automation.

Whalidate

Copy trading for Polymarket. Whalidate scores whale wallets on how they made their money (return, settled trades, worst drawdown and how much of the profit came from one trade) and copies only the new trades that pass your rules: entry price band, slippage cap, market categories and loss limits. Every strategy runs free on paper first; live trading is a paid plan from $49/month with no per-trade fee.

Catalyst

Catalyst runs a prediction market trading challenge. Pick a challenge from $10 and trade live Polymarket events on sports, politics, crypto and more in a simulated account, so you have no market exposure. Each challenge shows its profit target, payout and rules before you pay. Pass the challenge and get paid up to $3,000, straight to your Catalyst wallet, ready to withdraw. You keep 100%. Catalyst also runs free prediction competitions with cash prizes.

outcometick

outcometick sells historical tick data for the crypto Up/Down markets on Polymarket (BTC, ETH, SOL, XRP, DOGE, BNB, HYPE) and Predict.fun (BTC, ETH, BNB), archived since June 2026. It carries the Chainlink streams these markets settle on (with the TWAP streams on Polymarket), plus order books, Polymarket trade prints and each market's strike and outcome, so results can be recomputed. Files are checksummed, downloaded by API. A hosted sandbox runs Python or Node.js strategies on the same data.

PMWallets

PMWallets is a Polymarket smart-money leaderboard built from its own ledger of the Polygon chain. Wallets that trade as one are scored as one trader; win rates come with a 95% confidence interval, profit is shown without the single best market, and published records are never rewritten. Follow any trader and get every fill over WebSocket or signed webhook in about a second, from $0.01 per wallet per hour. API, MIT SDKs, an open-source copy-trading bot and a browser extension.

Dozor

Live arbitrage scanner for esports that finds surebets between Polymarket, Kalshi and 25 bookmakers and crypto sportsbooks in CS2, Dota 2, LoL, Valorant and Rainbow Six. Live and prematch on one screen: every leg shows price, ROI, quote age and a direct link to the event. Rule-based alerts, arbitrage calculator and bet journal. Open stats per bookmaker and pair, updated daily. Free plan without a card; PRO from $1.42/day. X: @dozorbet, Telegram: @dozor_bet.

Bot for Kalshi

Bot for Kalshi uses AI to turn plain-English trading rules into editable workflows. Review the conditions, test in Paper mode, then choose whether to enable live trading through your own Kalshi account. Hosted operation, limit-order settings and activity receipts are included. Funds stay at Kalshi; a Kalshi API key is required for Paper and live modes. Complete costs $99/month with no free trial. Independent software, not affiliated with Kalshi.

Live dashboard of what Kalshi's top-earning, ID-verified traders hold and trade, ranked by lifetime profit. Track whales in trending markets, browse top earners' trades in the trade explorer, get alerts when top traders enter a market, and review every settled win. The free ranking at kalshispy.com/top-kalshi-traders updates hourly; names and profits are verifiable on kalshi.com. An MCP server and OpenAPI let ChatGPT, Claude and Cursor answer with the same live data.

Polkamarkt is a SORA-based binary prediction-market platform using KUSD collateral and XOR network fees, with dynamic pari-mutuel settlement. Available at https://polkamarkt.com and integrated into https://polkaswap.io/#/polkamarkt. Trading fees apply.

TradeLabsAI

The leading analytical software for traders. TradeLabsAI is a charting and research tool for Polymarket's short term crypto up or down markets (BTC, ETH, SOL, XRP and DOGE): live price to beat and countdown for every 5 and 15 minute round, AI chart analysis, free paper trading with virtual money, a weekly paper trading competition and a public record of resolved rounds. Free to start, with paid plans for heavier use.

Free public probability dial for everyday claims: ask a true/false question and get an explicit confidence on a true / false / in-between dial, powered by TypeSafe Jev. Built for probability literacy and making uncertainty visible—not chat. Unpaid free try; no signup required for a first question.

Historical Polymarket order book snapshots, trades and resolutions via REST, WebSocket and MCP for backtesting, trading bots and AI agents.

CALLOUT

Crypto prediction market settled in USDT (TRON / Polygon). Trade YES/NO on crypto, macro, politics and sports with live AMM pricing, and sell your position any time before settlement. Anyone can open a market and earn 1% of its trading volume. Also runs Live 5-minute BTC/ETH/SOL up/down rounds and a free weekly contest: 3 free guesses a day, no deposit, top 3 each week win USDT. No KYC. 8 languages.

MoonX

We've turned Polymarket into a moonshot machine: small bets on long shots that pay anywhere from nothing to 1000x. Every shot launches live on the feed, and the ones that moon make the Legends board.

PolyTraderBot

PolyTraderBot sells six self-hosted Polymarket trading bots: CopyBot (copy chosen wallets with your own sizing, filters and exits), Crypto5min and Crypto15min (5- and 15-minute crypto up/down markets), ARB (complement and negative-risk basket price gaps after costs), WeatherBot (temperature markets: forecast models against the price ladder) and PolyLiq (two-sided quotes in liquidity-reward markets). Each bot runs in Docker on your own PC or VPS, ships as full readable source (not compiled), starts in paper mode and keeps your private key on your own machine: no hosted signer and no custody. Updates install from the dashboard with a published changelog. $10/month per bot, source and updates included. No profit claims: trading prediction markets can lose money.

Retina

Portfolio tracker that puts your Polymarket positions and profit or loss beside your EVM and Solana wallets, DeFi and metals, with Earned APY and a built-in AI assistant.

Kalshi API

Official public REST data for Kalshi events, markets and order books.

Normalized prediction-market data with historical trades, order books and streaming access.

Wallet and market research with trader leaderboards, positions and activity.

Polymarket API

Official market-discovery, order-book and market-data interfaces for Polymarket.

Polysights

A Polymarket intelligence terminal combining trader tracking and market research.

OpenWorlds

OpenWorlds is a harness for personal trading agents to discover, evaluate, and adapt across markets. Trade public agents on OpenWorlds, create your own, and more.

Pulse Market

Pulse Market is a real-time prediction market terminal built for active traders. Use the market screener to quickly find markets with notable price moves, volume, and activity, then analyze probabilities and breaking events in one place. Discover what the market is pricing in and act on it in real time

OddsPipe

A cross-venue data API with matched markets, confidence scores and spread analysis.

Predictions.io is a prediction-market discovery and analytics platform. Explore topic-based lobbies bringing together markets from Polymarket and Kalshi, and research market activity in one place. Available on web, iOS and Android at predictions.io/download. Predictions.io does not hold funds or execute trades.