. We'll translate the text inside tags, keeping the tags.
Also meta description: "Polymarket US launches multi-leg sports contracts via API-only beta, while Kalshi reportedly extends maker fees to parlays. Details on the moves and what's next." -> Danish: "Polymarket US lancerer multi-leg sports-kontrakter via API-only beta, mens Kalshi angiveligt udvider maker-gebyrer til parlays. Detaljer om skridtene og hvad der kommer næste
