Predict Engine

Predict Engine (branded PredictEngine on its own site) is a web platform for building automated trading bots that route orders into Polymarket, alongside Limitless and Predict.Fun according to its documentation. A trader describes a strategy in plain language, such as buying when a market dips below a price, and the platform's AI builder turns that description into a running bot, or a trader can assemble one from templates without writing code.

The product also exposes a copy-trading mode that mirrors other traders' positions filtered by win rate or market type, a cross-market arbitrage scanner that watches Polymarket, Opinion and sportsbooks for spread openings, and a REST plus MCP API for plugging an external agent such as Claude or GPT directly into order flow. Signup creates a Polymarket wallet in the browser with no KYC step, and the operator states that wallet remains the trader's own.

A trader signs up on the website and the platform provisions a Polymarket wallet inside the browser dashboard, with no separate KYC step described. From there, funding happens by depositing crypto or paying by card or Apple Pay on the platform's deposit page, after which a trader either types a strategy description for the AI builder to turn into a bot or picks a template such as an arbitrage or copy-trading strategy.

Once activated, a bot runs continuously on the operator's infrastructure rather than on the trader's own machine, submitting orders under Predict Engine's builder code so fills post to Polymarket's central limit order book. A trader monitors positions from the web dashboard, a Discord bot, or what the documentation calls a mobile terminal, without needing to keep a browser tab open.

The docs describe Telegram bots and a Discord bot as monitoring and control surfaces alongside the web dashboard, and higher subscription tiers add the ability to let the AI read a trader's account activity. The evidence does not describe the platform as a browser extension or standalone desktop app; the bot builder and dashboard are web-based.

• Natural language bot builder

  Lets a trader type a strategy in plain English and have the AI generate the trading logic, so someone who cannot code can still automate entries and exits.

• Cross-market arbitrage scanner

  Watches Polymarket, Opinion and sportsbooks for spread openings and can enter and exit automatically when they close, catching moves a manual trader would likely miss.

• Copy trading filters

  Mirrors a chosen trader position for position, filterable by win rate, profit and loss, and market type, instead of copying every wallet on the platform indiscriminately.

• REST and MCP API

  Gives an external agent such as Claude or GPT direct programmatic access to the order lifecycle, for a trader who wants custom logic instead of the built-in builder.

Non-coding strategy traders

Someone who can describe a trading idea in plain language but cannot write code gets a working bot without touching a script.

Cross-market arbitrage hunters

A trader who wants to catch spread gaps between Polymarket, Opinion and sportsbooks without watching three tabs at once can let the scanner do it.

Wallet-following copy traders

A trader who would rather mirror a proven wallet than build their own strategy can filter targets by win rate and market type before copying them.

Developers building custom agents

A developer who wants their own agent, such as one built on Claude or GPT, to place orders programmatically can skip the built-in builder and call the API directly.

Retail-sized position traders

Someone opening or closing small positions fits the pattern here, since typical fills run near $14, in line with a retail crowd rather than large desk accounts.

Predict Engine's own pricing page lists tiered monthly subscriptions rather than a per-trade commission, publicly showing plan levels and what each one unlocks; our fact sheet records that headline as $19.99/mo+. The Pro tier advertises a trading-fee discount for subscribers, but the operator does not publish the resulting rate traders actually pay, nor does it disclose any share of Polymarket's own per-market trading fee, which the market itself sets and applies to every builder routing into it. Before funding a bot, a trader should confirm the current subscription cost on the pricing page and weigh it against $14 and 130 to judge whether the plan fits the size and frequency of trades planned.

• It builds and deploys a working bot from a plain-language description, so a trader does not need to write or debug code.
• The arbitrage scanner and copy-trading filters give a trader two distinct automated strategies to run instead of clicking through Polymarket manually.
• A REST and MCP API lets a technical trader wire an external agent into order flow rather than being confined to the built-in builder.
• The free tier lets a trader run live bots on real markets before paying anything, so the platform can be tried with real money before any subscription starts.
• Bots run continuously on the operator's own infrastructure, so a strategy keeps executing without a trader having to keep a laptop or browser open.

• The operator does not publish the trading-fee rate a subscriber actually pays beyond naming a Pro-tier discount, so the real cost of that discount is not something a trader can check in advance.
• The platform provisions and hosts the trading wallet itself rather than connecting an external one, and beyond stating the wallet is the trader's own, it does not spell out withdrawal mechanics.
• Docs promise trading across Limitless and Predict.Fun in addition to Polymarket, so a trader focused only on Polymarket may be paying for scope they never use.
• The homepage's live activity feed and trader testimonials are marketing copy rather than audited results, so displayed profit figures should not be read as evidence of what a bot will do.
• Backtesting and unlimited copying sit behind paid tiers, so a trader cannot fully test a strategy before choosing a subscription level.
• AI chat and bot generation are metered by credits on top of the monthly subscription, adding a second cost dimension a trader has to track separately.

Signing up provisions a Polymarket wallet inside Predict Engine's own dashboard rather than connecting an external one such as MetaMask, and the operator's only statement on control is that the wallet is always the trader's own; it does not spell out withdrawal steps or what happens to a bot's open positions if the service goes offline. The homepage's volume, profit and bot counts are self-reported marketing figures, not audited, so a trader evaluating trust should weigh 129, 26 and #96 instead. Running a bot around the clock on the operator's infrastructure also means a trader is exposed to that infrastructure's own security and uptime, not just to Polymarket's.

Predict Engine fits a trader who wants to test an automated idea, whether arbitrage, copy trading or a custom agent, without setting up their own execution infrastructure. The natural-language builder and API access are real conveniences for someone who is not going to hand-write a trading bot.

Route flow here for the builder and monitoring tools, and check #96, $2K and 167.4K directly rather than the homepage's own volume and profit banners. A trader who wants a transparent, published fee schedule or who wants control over their own wallet infrastructure from day one should look elsewhere first.

• What is Predict Engine?

  Predict Engine is a web platform for building automated Polymarket trading bots from a plain-language description, with added copy trading, cross-market arbitrage scanning and an API for external agents.

• Is Predict Engine safe to connect a wallet to?

  It provisions the trading wallet inside its own dashboard rather than an external one, and states only that the wallet remains the trader's own; check 129 and #96 before funding it.

• What does Predict Engine charge?

  It sells monthly subscription tiers, listed here as $19.99/mo+, rather than a per-trade commission; the operator does not publish the fee rate a subscriber actually pays after any tier discount.

• What are the alternatives to Predict Engine?

  Predicts.guru tracks other Polymarket builders in the same AI and agent category; compare #96, $2K and $14 across them rather than relying on any single homepage's own claims.

• How does Predict Engine work?

  A trader signs up, gets a browser-based Polymarket wallet, funds it by card or crypto, then either types a strategy for the AI builder or picks a template, and the bot trades continuously on the operator's servers.

• Does Predict Engine support copy trading?

  Yes, it can mirror another trader's positions filtered by win rate, profit and loss, or market type, described on its site as shadowing top traders position for position.

• Can I use Predict Engine without writing code?

  Yes, its AI builder converts a plain-language strategy description into a running bot, and the platform also offers ready-made templates for a trader who prefers not to write a prompt at all.