Copy-Trading Tools for Prediction Markets

What the flag claims, and what it does not

capabilities.copy_trading claims one thing: the product itself places orders on your own account or wallet that mirror the trades of a wallet you chose. Ten of the 103 cards in the catalogue carry it. Nine sit in trading clients and bots, and one, PolyTrack, is a wallet tracker that also places orders.

Three nearby things are not this flag, and each one has a card of its own.

• Paper copying is not this flag. Airavat runs copy-trade pods that simulate each fill against virtual funds, and its terms say it executes no trades and holds no keys. Polywhaler's Orca trades live on Polymarket and Kalshi, but its docs, read on 8 October 2026, say automatic copying of whales is a paper-trading feature for now and that a live portfolio trades only when you place the order yourself. A simulated copy has never paid a fee, crossed a spread or failed to fill. That last point turns out to be most of the subject.
• A "copy" button that leaves the site is not this flag. The Copy Trade tab on Polymarket Analytics is a landing page for PolyGun, a Telegram bot that has no card here. On PolymarketScan, the Copy Trade box on a pick sends nothing, and the one working path hands you to Polycool. The product that places the order is the one that carries the flag.
• A vendor's signal on autopilot is not this flag, and it is outside the catalogue. The scope line runs through who decides the position. Copying is in because you pick the wallet. A sold opinion on an outcome is out, whether it arrives as a tip or as orders. PolyBot is in this listing for its copy subscriptions and its user-written rules. Its HFT Strategies, where in the docs' own words PolyBot's signal source defines the trade logic, are the part of that product the flag does not describe. Its card sets that feature out under Limitations.

A data feed that its vendor suggests building a copier on is not this flag either. Oddpool's documentation pitches copy trading off its whale feed, and its terms forbid using the service for trading automation.

Inside the listing, the line runs between choosing and being told. Kreo's AI Match returns wallet addresses fitted to the risk profile you state. PolyTrack's Dev Picks are wallets the vendor's team chose. Neither copies anything until you enable a wallet, and both cards carry ai_features: recommendations with a sentence saying who decides. Whichever way a wallet reaches you, what you are setting up is an instruction to buy whatever that address buys, after it has bought it.

Who holds the key while the copy runs

A copy that fires at 3am while your phone is off has to be signed by something other than you. Every member has solved that problem, and what changes from card to card is what the vendor's side holds while it does. Where your key lives sets out the four kinds of credential. These are the forms they take here.

• A key the company holds. PolyCop's terms describe a custodial wallet whose private key material the company keeps encrypted, "with access limited to authorized systems and personnel". PolyBot creates the signer for your Safe, and its systems hold that key. Kairos's terms say it holds no private keys. Its API docs call the default order path a custodial lane, signed by a managed key in a cloud HSM.
• A wallet you can export, signed by the vendor's server while copying. Bullpen's own CLI states it in its error text: a manual trade is signed locally and "copy-trade is server-signed". Kreo's wallets are Safes secured by Privy, which you can export. Kreo's documents do not say what its servers are authorised to do with your Safe, or how you revoke that authority. Polycool's wallet is also created through Privy and is exportable, and it routes execution through a third party, Dome.
• A scoped delegation you can revoke. Stand authorises itself as a session signer inside Privy's trusted execution environment, and you revoke it from the profile menu under "Disable Auto Trades". Polyrama never asks for a private key. It stores the API credentials Polymarket's order book issues, encrypted on its own server.
• A key you paste in. PolyTrack's auto mode asks for your Polymarket API key, secret, passphrase and a private key, and the product publishes no terms of service.

No member runs on your machine. None of the ten is self-hosted. The cards' own alternative is to write the copier yourself against polymarket-client or PMXT. The key then stays in your process and the venue's fee is the only fee. The watching, the sizing and the failure handling are then yours to write.

How late a copy is, and how it is sized

A copy is a second order, placed after the leader's fill has already moved the book. Most cards in this listing say so in some form. The vendors' own latency claims come in units that cannot be compared, and none of them has been measured by anyone outside the vendor:

• PolyCop: 30% of copies in the same Polygon block as the leader's fill, the rest one block later.
• PolyTrack: 16 to 30 milliseconds from the whale's trade to your copy. That describes their server, not where your order lands in the book.
• Kreo: a Priority Mode that claims to fire when the leader submits, before the block confirms.
• Kairos drops signals older than 30 seconds.
• Bullpen, Stand and Synthesis state no figure. Polycool names its execution layer but gives no number.

No card documents whether its trigger watches pending transactions, confirmed blocks or an indexer. Those are the three clocks set out in what wallet tracking shows. The claims above suggest that different members run on different ones.

No member publishes a measurement of that gap. The nearest published attempt comes from outside the listing, from Polywhaler, whose own automatic copying is paper-only: its Orca prices a paper portfolio twice, once at the prices the copied wallet got and once at the fills a copier could have got from the trades that printed after each one, and its docs call the second figure a ceiling rather than an estimate, because some of those prints were maker fills. Read any copier's record the second way, and read it as the best case.

Sizing comes in three shapes, and most members offer more than one.

• A fixed amount per copy. Bullpen's minimum is 5 USD and PolyBot's is 1.10 USD.
• The leader's own size times a multiplier, from 0.01 to 10 on Kreo and on PolyBot.
• A share of your own balance or copy budget, as on Polycool and Bullpen.

Caps are where the products differ most. Kreo caps per trade, per day, per market and in total. PolyCop caps per trade, per market, per side and in total, and limits how many markets you can hold. PolyBot allows three copy subscriptions per wallet.

Polymarket's own minimum order (1 USD for a market order, 5 shares for a limit order) catches small proportional copies. Kairos skips them. PolyCop lets you choose between skipping and rounding up.

What the product adds to the venue's fee

Every rate below is charged on top of the venue's own fee, and several fee pages do not say so. The cards record each one in the same unit, as a share of the 1 USD a contract pays out, taken at a 50-cent price:

• Kreo: 1.75%, on the same curve Polymarket uses, with a floor of 0.3 cents a share and 0.3% on redemptions. Its card works the total out on a Polymarket crypto market at 50 cents: about 3.5 cents a share, which is 7% of what the share cost.
• PolyTrack: 1% at the entry rate, falling with the size of the copy, on top of Pro at 19 USD a month. The ladder comes from the app's shipped code, because no fee page publishes it.
• PolyBot and Polycool: 0.5%. PolyBot's docs say promotions and overrides can change the rate. Polycool falls with lifetime volume, puts a three-cent floor on each execution, and charges iOS trades a different rate.
• PolyCop, Stand, Kairos and Synthesis: 0.25%. Stand charges only on copied fills, and charges the redeem too, even when you redeem somewhere else. Kairos charges every taker fill, copied or not, and nothing to makers. Synthesis states 0.50% of the order on copytrade orders in a docs site read on 9 October 2026, and nothing about an order placed by hand.
• Bullpen and Polyrama: the fee fields read "None". That rests on the vendor publishing no fee of its own, not on anybody observing a fill.

The floor matters more than the rate on a small copy. A two-dollar Polycool copy pays 1.5%, and at a price of 1 cent Kreo's floor is 30% of what the share cost. Some members also pay the leader: on Kreo, a wallet that others copy earns 15% of the fees its followers' copies generate. That rewards trading often and being copied widely, not the outcome of the copies. What a trade actually costs converts the venue's half.

Which venue the copy lands on

Polymarket, almost always. Wallet copying exists because a Polymarket fill is a public transaction. On a CFTC-regulated exchange, the per-account record goes to the Commission and is not published, which is the asymmetry what wallet tracking shows sets out. Nine of the ten members copy onto Polymarket's international book alone, and no member copies onto Kalshi.

• Kairos adds Predict.fun. It routes orders to Kalshi as well, and leaves Kalshi out of copy trading.
• Three more cards name Kalshi without a working copy route. Kreo names it but documents no order flow. Synthesis's docs say it supports Kalshi on Solana, and do not say whether a copy lands there. Stand's Kalshi page says trading there is not currently possible.

A product that places orders on Polymarket is never more available than Polymarket. Polymarket's international venue does not serve US persons. Two cards here answer us_persons: true, and each one answers for something other than copying onto Polymarket:

• PolyTrack: for its watchlist.
• Kairos: for its Kalshi terminal, which comes with no copy trading.

The terms of Polycool, Kairos, Polyrama, Stand and Synthesis all forbid using a VPN to get around a restriction. Why a venue is unavailable where you are describes where the actual gate is.

Copying a wallet a tracker calls an insider

Two members put an insider label one screen away from the button that starts a copy, and the trackers a reader consults first carry the same kind of label:

• PolyTrack's Dev Picks advertise "Whale Clusters - Grouped insider wallets", with no basis given.
• Polycool ships an insider feed free.
• Among trackers outside this listing, Polywhaler attaches a 0-to-100 insider score to single trades. Its "Vindicated" feed lists only the flagged trades that won, and gives no count of the ones that lost.

What the chain supports is narrow: this address took this position, at this size and this time, and the price later moved. Who is behind the address and what they knew are not in the data. No wallet tracker in this catalogue publishes its rule, its false-positive rate or a retrospective over addresses it flagged in advance. A copy of a flagged trade is a second fill after the first one has moved the price, so the label cannot tell you what you are copying. Where a trading restriction exists, it is written into a series' filed contract terms and names categories of person, and insider-trading rules on event contracts sets those documents out.

What to check before relying on one

1. Read the terms, not the marketing, for custody. PolyCop-branded pages elsewhere on the web call it non-custodial, and its terms say otherwise. Kairos's terms and docs disagree with each other. PolyTrack publishes no terms at all. PolyBot's terms are not published outside the bot.
2. Ask what can sign while you are away, and how you take that back. Stand answers with a menu item. Elsewhere, fund a separate wallet with the amount you are prepared to lose. PolyTrack's own setup form advises a dedicated trading wallet, and PolyCop can create a sub-wallet for each leader.
3. Price your smallest copy, not your average one. Floors, the venue's minimum order and a per-copy fee add up fastest on small proportional copies and on low-priced outcomes.
4. Find out what a failed copy does. On Kairos, one copy that fails for lack of balance pauses every subscription you have, and copies older than 30 seconds are dropped with no trace in the activity feed. A Stand copy strategy keeps selling after its expiry date until you pause it. PolyCop's stop-loss on a copy never fires while selling is set to limit orders.
5. Read any record at a copier's prices. PolyCop's and Kreo's wallet reports replay an address with fills 2% worse each way. That is one fixed friction model, and on a thin book the real gap is larger. Polywhaler's executable view above is the only published attempt to price it per address.
6. Check the handle before you fund anything. This is the most impersonated corner of the catalogue. kreopoly.app is not Kreo, tradepolybot.app is not PolyBot, and polycop.io is a different product that asks you to paste a private key into a web page. Each card names the vendor's official properties.

Nothing in this collection has been run by this site against a funded account. Custody, latency, sizing and fees above are read from each vendor's documentation, terms and shipped code, and dated on the cards.