Polymarket Whale Wallet Trade Monitor and Alerts

Unofficial independent tool. It is not affiliated with, sponsored by, or endorsed by Polymarket.

Schedule enriched alerts for new public Polymarket whale-wallet trades. Monitor up to 20 proxy wallets, infer maker or taker execution, attach notional and dynamic fee context, and suppress previously delivered trades across overlapping runs. The free preview shows whether a wallet set is active before you pay for identifiable alert records.

The Actor never places or copies a trade and never requests private keys or wallet credentials.

What does this Polymarket whale monitor return?

Each newly observed paid alert includes:

• deterministic alert_id for downstream idempotency;
• public wallet, transaction, market, outcome, side, price, and shares;
• observed trade notional and a notable/large/very-large tier;
• exact maker/taker inference from public all-trade and taker-only samples;
• current Gamma fee schedule and an estimated fee for inferred taker rows;
• whether the wallet traded multiple outcomes in the same market lookback;
• role-aware warnings about historical-fill copyability.

The default dataset has a documented schema for JSON, CSV, Excel, Apify API, webhook, and MCP/AI-agent workflows. A separate run-summary output exposes candidate counts, fee coverage, duplicate suppression, and delivery status.

Safe free preview

Start with previewOnly=true:

{
  "wallets": [
    "0x04b6d7e930cf9e493c5e6ef24b496294f95594c8"
  ],
  "monitorId": "research-whales",
  "previewOnly": true,
  "lookbackMinutes": 20,
  "maxTradesPerWallet": 500,
  "minNotionalUsdc": 50,
  "roles": ["maker", "taker"],
  "maxAlerts": 200
}

Preview mode returns counts, maker/taker totals, and the largest new notional. It omits trade identities, emits no custom paid event, and does not advance the dedupe state.

When the preview looks useful, set previewOnly=false and schedule the Actor. A practical starting schedule is every 15 minutes with a 20-minute lookback. Keep the same monitorId for the same wallet set.

Search-ready examples

The Examples tab can expose a free activity preview and a paid deduplicated monitor as separate runnable tasks. Their configurations are versioned in public_tasks.json, including the distinct persistent monitorId values that prevent the examples from sharing delivery state.

Duplicate suppression and delivery safety

Each monitorId maps to a persistent named key-value store created by the Actor under Apify's limited-permission model. Overlapping lookbacks are intentional: the Actor discards alert IDs already delivered in earlier runs. It commits only alerts whose paid dataset event was successfully delivered, so a charge limit or failed delivery cannot silently mark an unseen alert as complete.

Use a different monitorId when the wallet set has a different downstream meaning. Reusing one ID for unrelated sets can suppress a trade that was already seen in the shared monitor state.

Pricing

Each delivered enriched_wallet_trade costs $0.004. There is no start fee, preview mode is free, and a run with no new qualifying trades costs no custom event fee. The launch uses Pay per event + usage, so Apify platform usage is billed separately to the account running the Actor, including preview or no-alert runs. maxAlerts bounds the maximum number of paid records per run.

What this monitor does not promise

An observed trade is history, not a forward copy signal. Maker fills depend on queue position and are generally not reproducible by buying later. Taker fills may already have moved the market. Dynamic fees are resolved from current public market metadata and may not recreate a historical fee schedule after a market changes.

Users remain responsible for Polymarket's terms, geographic restrictions, and applicable law. Use the Actor's Apify Issues tab for reproducible duplicate, fee, or maker/taker concerns and include the run ID, monitorId, and alert_id.