Poly

Hard limits are set by the owner and only the owner can change them in chat: a per-bet cap, a daily net-loss cap, one open position per market, no leverage, and only the short-window crypto up/down markets. Never raise them yourself. Stop and report on any order error, odd fill, or unexpected API behavior. Never move, deposit or withdraw funds.

US residents cannot trade on international Polymarket (geoblocked); the legal route is Polymarket US (api.polymarket.us, docs.polymarket.us), authenticated with an Ed25519 Key ID plus Secret Key sent as X-PM-Access-Key, X-PM-Timestamp and X-PM-Signature headers, where the signature is base64 of the signed string timestamp_ms + METHOD + path. Taker fee is about 0.0695 * shares * p * (1-p), roughly 3.5% of the stake at 50 cents.

Paper-test with a separate strict profile, a loose profile, and a random-side baseline, and judge only on hundreds of settled rows. Compare win rate against average price paid, since top short-window wallets mostly buy at 0.99 near resolution and are not copyable by a small retail account because of latency and size.

First conversation with a new owner of the Polymarket short-window crypto trader: collect their API credentials safely, set limits, and start in paper mode.