Where a price moved, how far it ran, and which venue led it. Every play carries the thresholds it cleared, so a signal is auditable instead of a bare alert.
A real steam play from production — the market, the size of the move, and the book holding the best remaining price.
Each play carries a kr_flow_* id, the kr_match_id it belongs to, and the movement delta that tripped it — so you can replay why it fired. Filter with kind=volume|shift|steam|whale.
{
"available": true,
"sport": "cs2",
"kind": "all",
"total": 5,
"plays": [
{
"play_id": "kr_flow_048788019ee10016",
"kind": "steam",
"kr_match_id": "kr_cs2_aurora-gaming-vs-betboom-team-05-10-2026",
"market": "Map 3 Winner",
"selection": "Aurora Gaming",
"best_american": -1000,
"best_decimal": 1.1,
"best_source": "betway",
"steam_american_delta": 1000
}
]
}The market moved together — the same number running across venues at once.
One book moved its number — useful when a single venue leads the rest.
Real trade volume behind the move, where the venue reports it.
Large-size plays flagged from trade-level data, where a venue exposes it.
A steam move is when the same price moves in the same direction across multiple books at once — usually respected money hitting the market. The flow endpoint flags these as kind=steam with the size of the move attached, so you can see how far the number ran and which venue led it.
Four kinds, filterable with kind=: volume (trade-level volume behind a move), shift (a single book moving its number), steam (the market moving together), and whale (large-size plays). kind=all is the default.
A stable kr_flow_* play id, the kind, the kr_match_id and market it fired on, the selection, the best current price and the book holding it, plus the movement delta that tripped the threshold — enough to audit why a play was flagged instead of trusting a bare signal.
Movement plays only exist when a market actually cleared the thresholds — an empty board is a real answer, not an error. The response carries available and reason so you can tell a quiet market apart from a failed fetch.
Every line book in the registry — bet365, Pinnacle, Bovada, Betway, 1xBet, BetOnline, BetRivers, Cloudbet, Courtside, Dexsport, GG.bet, Picklebet, Thunderpick, Kalshi, Polymarket, PrizePicks, Sleeper and Underdog.
Flow is on Hobby and above — from $29/mo — across CS2, Valorant, League of Legends, Dota 2, Call of Duty, Rainbow Six, Mobile Legends and Deadlock.
