GET /api/v1/fillsReturns fills (individual trade executions) for the authenticated user on the specified exchange. A single order can produce multiple fills (partial fills). Many fills over time aggregate into a position.
Parameters Exchange identifier (e.g., polymarket, kalshi).
Filter fills by a specific market ID (exchange-native). When omitted, returns all fills.
Maximum number of fills to return.
Response ID of the order that was filled.
Market the fill occurred on (exchange-native ID).
The outcome traded (e.g., "Yes" or "No").
Number of contracts filled.
Whether this fill was a taker (market order hitting resting liquidity).
Fee charged for this fill.
ISO 8601 timestamp of the fill.
# All fills curl -H "X-API-Key: YOUR_API_KEY" \ "https://api.parsecapi.com/api/v1/fills?exchange=polymarket" # Filtered by market curl -H "X-API-Key: YOUR_API_KEY" \ "https://api.parsecapi.com/api/v1/fills?exchange=polymarket&market_id=0x1234abcd"
[ { "fill_id" : "fill_123" , "order_id" : "order_456" , "market_id" : "0x1234abcd" , "outcome" : "Yes" , "side" : "buy" , "price" : 0.55 , "size" : 100.0 , "is_taker" : true , "fee" : 0.55 , "created_at" : "2026-02-24T15:30:00Z" } ]
