8 tools: 2 trading bots, 1 open-source framework, 5 analytics/data tools for Polymarket and Kalshi. We only list tools that say they can't withdraw your money: they either trade through a limited key, give information only, or run on your own machine. This list is separate from our crypto and stock rankings and has no scores.
Updated 2026-11-02
| Tool | What it does | Price | Custody | US users? | Source | Link |
|---|---|---|---|---|---|---|
| Trading botPolyMasterPolymarket (international)Read the safety guide before connecting a wallet | Copy trading | Free to start, no subscription. Polymarket charges a 0.5% fee on each filled order via PolyMaster's builder code (nothing on unfilled limit orders). Paid tiers for more capacity are not priced on its homepage | Says it is non-custodial: connects with scoped, revocable API keys that can trade but cannot withdraw, and asks for no private keys | No · Runs on Polymarket International, which bars US users (source) | source · source 2checked 2026-11-02 | Visit |
| Trading botBot for KalshiKalshi | Rule-based automation (plain-English rules, paper mode, limit orders) | $99/month, one plan | Non-custodial: funds stay at Kalshi, orders go through your own Kalshi API key, no withdrawal access, key revocable at Kalshi | Yes · Trades on Kalshi, a CFTC-regulated US exchange (source) | source · source 2checked 2026-11-02 | Visit |
| Open-source frameworkPolymarket Agents (open source)PolymarketArchived on GitHub and not actively maintained: last update 2024-11-05Read the safety guide before connecting a wallet | Developer framework for AI trading agents (not actively maintained) | Free, MIT license | Self-hosted: you run it with your own wallet key, so check the code and dependencies yourself | No · Built for Polymarket International, which bars US users (source) | sourcechecked 2026-11-02 | Visit |
| Analytics/data toolKalshiSpyKalshi | Analytics: open positions of top Kalshi traders, grouped by market | As of 2026-11-02 (Fall Sale): Premium $63/mo (list $90); Elite LLM Access $116/mo (list $200); Lifetime $435 one-time (list $870) | Information only: you place every trade yourself on kalshi.com | Yes · You trade on Kalshi, a CFTC-regulated US exchange (source) | source · source 2checked 2026-11-02 | VisitAffiliate link |
| Analytics/data toolPolshiPolymarket and Kalshi | Arbitrage scanner and whale-trade feed | Free tier (15-minute refresh); Pro $19/month (15-second prices); Sports tier $30/month listed as coming soon | Information only: it displays prices; you trade on each platform yourself | Check · The site doesn't say; Polymarket International bars US users (source) | sourcechecked 2026-11-02 | Visit |
| Analytics/data toolTamituPolymarket and Kalshi | AI market analysis (Chrome extension and dashboard) plus arbitrage scanner | Free (10 analyses/day); Pro $19/month | Says it never touches your funds or places orders; trade execution is listed as in development | Check · The site doesn't say; Polymarket International bars US users (source) | sourcechecked 2026-11-02 | Visit |
| Analytics/data toolPrediction PilotKalshi (plus Polymarket arbitrage data) | AI copilot: backtests, arbitrage scans, saved strategy alerts | Free 250,000 credits; $14/month for 2.5M tokens, overage $10 per million | Says it does not place trades automatically | Check · The site doesn't say | sourcechecked 2026-11-02 | Visit |
| Analytics/data toolrekko.aiKalshi, Polymarket, Robinhood, Coinbase | Signals and arbitrage API for building your own bot | Per call: $0.01 data, $0.10 analysis, $2 signals, $5 arbitrage scans; free starter calls; Pro $49/month for volume discounts | A data and signals API; the site does not describe holding customer funds | Check · The site doesn't say | sourcechecked 2026-11-02 | Visit |
Before you connect any of these, read the prediction market bot safety guide.
Included: tools whose own site says your funds stay in your account and the tool can't withdraw, plus read-only analytics and open-source code you run yourself. Left out: tools that hold wallets for you, tools whose custody we couldn't confirm, and tools that promote getting around a platform's location blocks. Prediction market contracts can lose money. Not financial advice.
New features, new exchanges and price moves across the bots and tools we track, every Friday. Free.
No spam. WhichBot is a directory, not investment advice. We never touch your funds or API keys.
Affiliate disclosure: some links may be affiliate links; we may earn a commission at no cost to you. Bots never pay for placement or score. Not financial advice: trading bots can lose money. Data last checked 2026-11-02; each field shows its own check date.