Query a flat (constant) volatility surface that returns the same volatility for any expiry and strike. Useful for testing, basic Black-Scholes pricing, or when assuming constant volatility across all options. Returns both the volatility and total variance for a given query point.
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Constant volatility value (annualized, e.g., 0.20 for 20%)
0 <= x <= 50.25
Time to expiry in years for the query point
x >= 01
Strike price for the query point
x >= 0100