How to Build a Polymarket Wallet and Position Tracker

Tracking Polymarket positions, fills and realized exposure with public APIs and on-chain reconciliation.

Data model

Store wallet, condition, outcome token, average entry, size, realized proceeds and timestamps. Separate orders from fills and settled positions.

Ingestion

Combine Data API activity with CLOB fills and periodic balance reconciliation. Use deterministic trade IDs so reconnects cannot duplicate records.

PnL

Calculate realized and unrealized PnL with explicit mark sources. Include fees, redemptions and transfers rather than relying on wallet balance change.

Alerts

Notify on new positions, concentration, settlement and unexplained balance differences. Avoid exposing wallet credentials in a read-only tracker.

Build a Polymarket copytrading bot or trading dashboard.