Polymarket US began processing multi-leg sports contracts on Aug. 5 through an API-only beta that never surfaced in its consumer app. The launch lands as rival Kalshi is reported to be extending maker fees to its own parlay product, a change its published fee schedule does not list. An API-Only Launch 11 Weeks After Certification […]
Source: https://news.bitcoin.com/igaming/polymarket-us-tests-parlays-as-kalshi-banks-25m-in-fees/
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