id | string | Order.order_id, fallback CreateOrderV2Response.order_id | OpenOrder.id, fallback SendOrderResponse.orderID | kalshi: Kalshi-issued order id, identical across V1 GET and every V2 mutation response. polymarket: Order hash; exposed as id on GET responses and orderID on POST /order. |
market_ticker | string | Order.ticker | omitted | kalshi: V1 GET echoes the ticker; on V2 mutations the adapter carries the request asset_id through. polymarket: Polymarket exposes a CTF condition id, not a market ticker; always empty on this surface. |
outcome | string | synthetic | OpenOrder.outcome | kalshi: Title-cased from Order.side (yes/no); V2 mutations reuse the caller-frame outcome. polymarket: Outcome label as published by Polymarket (e.g. YES/NO on binary markets). |
side | OrderSide | synthetic | OpenOrder.side | kalshi: Sourced from Order.action (buy/sell), not the YES/NO side field. polymarket: BUY/SELL enum, 1:1 with unified OrderSide. |
price | number (double) | Order.yes_price_dollars, fallback CreateOrderV2Response.average_fill_price | OpenOrder.price | kalshi: Fixed-point dollar string (V1) or YES-frame average fill price (V2), converted to caller-frame f64. polymarket: Decimal probability string (e.g. "0.5") parsed to f64. |
size | number (double) | Order.initial_count_fp, fallback CreateOrderV2Response.remaining_count | OpenOrder.original_size | kalshi: FixedPointCount on V1; reconstructed as fill_count + remaining_count on V2. polymarket: Six-decimal fixed-math string parsed to f64. |
filled | number (double) | Order.fill_count_fp, fallback CreateOrderV2Response.fill_count | OpenOrder.size_matched | kalshi: FixedPointCount on both V1 and V2. polymarket: Cumulative matched size; six-decimal fixed-math string parsed to f64. |
fee | number? (double) | CreateOrderV2Response.average_fee_paid | omitted | kalshi: Per-contract average fee from the V2 create response, multiplied by fill_count for the dollar total. polymarket: Polymarket charges fees at trade settlement, not on order creation or lookup. |
status | OrderStatus | Order.status | OpenOrder.status, fallback SendOrderResponse.status | kalshi: V1 enum mapped to unified status; V2 mutations derive status from (fill_count, remaining_count). polymarket: OpenOrder uses prefixed ORDER_STATUS_* enums; SendOrderResponse uses unprefixed live/matched/delayed. |
created_at | string (date-time) | Order.created_time | OpenOrder.created_at | kalshi: RFC3339 string on V1; V2 mutations fall back to wall-clock at parse time. polymarket: Unix seconds; create paths fall back to wall-clock since SendOrderResponse omits it. |
updated_at | string? (date-time) | Order.last_update_time | omitted | kalshi: RFC3339, nullable; cancel paths set wall-clock and create paths leave it null. polymarket: Polymarket exposes no updated_at on either OpenOrder or SendOrderResponse. |
