In v1 of the Swap API, the estimatedPriceImpact parameter was a helpful metric for understanding potential slippage and trade execution risk. However, this parameter appears to be missing in v2. This impacts our ability to communicate trade quality to users and to implement safeguards for high-impact trades.

Adding estimatedPriceImpact to v2 would provide integrators with a consistent and critical metric for UX, risk management, and transparency — especially in volatile or low-liquidity markets.

We would appreciate this parameter being reintroduced in v2.