Upcoming US company earnings calendar — which companies report in a date window, with estimated EPS and revenue, as JSON. Default is the next 7 days; filter with ?from=YYYY-MM-DD&to=YYYY-MM-DD (window up to 30 days) or ?symbol=AAPL. Use for: earnings season monitoring, upcoming earnings this week, portfolio earnings alerts, event-driven trading calendar, pre-earnings positioning. $0.005 USDC per c