There are four kinds of "AI trading bot" for Polymarket: autonomous agents that decide and execute themselves (Rainmaker), no-code bot builders that execute your rules (PredictEngine), copy-trading tools that mirror human wallets (Kreo), and signals dashboards that leave execution to you (KalshiEdge). Which one is best depends on one question — who do you want making the decisions?
Published by Rainmaker, last updated August 2026. Yes, our product is on this page — which is why every claim about every tool comes from that tool's own public site, and why the one record we call verifiable is the one you can check on-chain yourself.
| Tool | Type | Who decides | Executes trades | Live in-game | Track record | Price |
|---|---|---|---|---|---|---|
| Rainmaker | Autonomous AI agent | The AI (C9) | Yes — from your own wallet | Yes — live MLB, in-game | Public settled log, on-chain verifiable | No subscription; fund from $20 |
| PredictEngine | No-code bot builder | You — your rules | Yes | No — rule triggers | None published | Free tier; paid plans |
| Kreo | Copy trading | The human you copy | Yes — mirrors their fills | Only if the trader is | Copied wallet's history | Not published |
| KalshiEdge | Signals dashboard | You | No — Kalshi focus, no Polymarket execution | No — 30-minute scans | None published | Free tier + subscription |
| SportsBot | Pre-launch waitlist | — | Not live yet | — | None yet | Waitlist |
| AI picks services (Leans.ai et al.) | Picks subscription | You — from their picks | No — you place bets yourself | No — pregame | Self-reported | Up to $299/mo |
Facts from each tool's own public site, August 2026.
Rainmaker is the only tool in this list where the AI itself decides, sizes, executes, and exits every trade. Its agent C9 watches every live MLB game and trades from your own Polymarket wallet — you set a stake and that's the whole job. It is also the only entry with a complete public settled record: every signal, wins and losses, links to the actual Polymarket market where it settled. The honest limitation: it trades its own documented models (live MLB today), so if you want to run your own strategy, it isn't the tool — that's a bot builder's job.
PredictEngine lets you describe a rule-based bot in plain English and deploy it against prediction markets in seconds, with a free tier to start. It's the right choice if you have a strategy of your own and want a machine to execute it. The trade-off is that the bot is only as good as your rules — it executes your judgment, it doesn't replace it — and most published activity is crypto-price markets rather than live sports.
Kreo mirrors the positions of Polymarket traders you choose to follow. Execution is automated, but the judgment is human: you inherit the trader's edge, their variance, and their tilt, and past wallet performance is the only guide to who's worth copying. Useful if you trust a specific trader; structurally different from an AI making its own reads.
KalshiEdge scores Kalshi markets with a three-model AI ensemble every 30 minutes and flags edges on a dashboard. It doesn't execute trades and doesn't cover Polymarket — it's a research tool for Kalshi traders who want to place orders themselves, strongest in non-sports markets like Fed and weather contracts.
SportsBot advertises a football-focused Polymarket bot with xG models and Claude as the decision layer, but as of August 2026 it is a waitlist with no live product and no record. Worth watching, not yet worth comparing.
Subscription picks services (Leans.ai is the best known, at $299/month) send you AI-generated bets to place at a sportsbook. Nothing is executed for you, nothing is live in-game, and the records are self-reported — Leans.ai's own advertised all-time record works out to about 54% wins. This is the category the rest of the tools on this page exist to replace.
An autonomous agent. The AI decides and executes; you set a stake. Demand a settled record you can verify before trusting one.
A bot builder. You design the rules, the bot executes them. Your results are your strategy's results.
Copy trading. You mirror their fills and inherit their judgment — check the wallet history, not the marketing.
Start with what AI sports trading actually is — the category explainer covers the whole ladder.
It depends on how much you want to do yourself. For fully hands-off sports trading with a public settled record, Rainmaker is the only autonomous agent that decides, executes, and manages every trade from your own wallet. If you want to design your own strategies, a no-code bot builder like PredictEngine fits better. If you want to mirror human traders, copy-trading tools like Kreo do that — with the caveat that you inherit the trader's judgment.
Yes. Polymarket runs an official Builder Program for third-party applications that route orders through its public CLOB API, with order attribution and a public builder leaderboard. Automated trading through your own authorized account is a supported, documented use of the platform.
Most tools publish self-reported stats that cannot be independently checked. Rainmaker publishes its complete settled log — wins and losses — with each signal linked to the actual Polymarket market where it settled, so the record is verifiable on-chain rather than taken on trust.
A bot executes rules you wrote: you design the strategy, it pulls the trigger. An autonomous agent makes the decisions itself — it picks the market, sizes the position, executes the entry, and manages the exit with no strategy-building or confirmation from you. Rainmaker is an agent; bot builders like PredictEngine produce bots.
AI picks services run up to $299/month. Bot builders are freemium with paid tiers around $30–100/month. Copy-trading tools typically charge fees on copied trades. Rainmaker has no subscription: you fund your own Polymarket wallet from $20 and the agent trades from it.
Every settled Rainmaker signal is public and linked to the real Polymarket market where it settled.