A Polymarket copy trading bot detects another wallet's activity and attempts to place corresponding orders under your rules. It automates a decision path; it does not transfer the original trader's entry price or guarantee their return. Before funding one, test what it observes, what it can authorize and what happens when an order fails.
If you are still choosing a wallet, start with how to copy trade on Polymarket. This guide focuses on evaluating automation, whether it is hosted software or a script you operate.
What a copy-trading bot should do
A useful evaluation model has five stages: detect a source fill, identify the contract and outcome, apply your exposure limits, submit an order within your price limit, and reconcile what actually filled. A notification is not a fill, and an accepted order is not proof that the full quantity traded.
Ask the provider to show a complete example from source activity through the follower's order and resulting position. A dashboard containing only the source trader's return does not demonstrate execution quality.
Hosted service or self-hosted script?
| Option | Responsibility to understand | Evidence to request |
|---|---|---|
| Hosted copy bot | Provider operates detection and execution | Permission model, logs, spending limits and stop behavior |
| Self-hosted bot | You maintain code, credentials and uptime | Dependency review, test mode, reconciliation and recovery |
| Research plus manual orders | You approve and place each trade | Source timestamps, executable quotes and a trade journal |
Polycopy's Auto Copy page, checked September 6, 2026, describes a hosted service with budget and risk settings. See our Polycopy review for its positioning. Treat vendor feature descriptions as claims to verify in the actual product.
Seven controls to test before real execution
- Price limit: skip a trade if the current ask exceeds your maximum, even if the leader already bought.
- Position cap: count existing holdings and outstanding orders, not just the next order size.
- Signal expiry: reject old activity after an outage rather than replaying a backlog at current prices.
- Duplicate protection: confirm retries cannot submit the same intended copy twice.
- Partial-fill accounting: size any remainder from confirmed fills and open orders.
- Exit handling: specify whether leader sells cause proportional exits and what happens to unmatched holdings.
- Stop control: distinguish disabling new orders, cancelling resting orders and closing positions.
These are evaluation requirements, not claims that every product implements them. A provider that cannot explain a failure case has left an important operational question unanswered.
Fixed sizing versus proportional copying
Suppose your test budget is $200 and a source wallet buys $10,000 of a contract. Copying 10% would require $1,000, already five times your budget. A fixed $10 cap produces a different exposure profile but respects the stated limit. Percentage settings must identify their denominator: leader order size, your available cash or your total portfolio.
Also inspect aggregate exposure. Five separate $10 entries in closely related Bitcoin contracts can behave like one $50 directional position. Per-order caps alone do not control that concentration.
Paper-test the follower's prices
For each signal, record the time your system first saw it, the available quote, executable depth, proposed quantity and estimated costs. Reject simulated fills that could not have happened at that time. Compare a paper run with the source wallet only after separating the price difference and skipped trades.
Include deliberate failure cases: a disconnected feed, a rejected order, a partial fill, a repeated event and a paused bot with an outstanding order. A useful test ends with the position ledger matching the simulated fills.
Fees and permissions
Check current market fees against Polymarket's documentation, and separately account for software charges. Review which credentials are requested, what they authorize and how access is revoked. Do not paste a seed phrase into an unknown script. A repository's popularity is not a security review.
Where Alphascope fits
Inspect a wallet with Alphascope, then open market research to assess the underlying event. Alphascope is a research step in this workflow, not the bot executing your copies. For short-window crypto, read the Bitcoin Up/Down settlement guide before assuming speed alone creates an advantage.