Rate Feed

The upper bound for a KIBT rate of a risk category is the central bank rate coupon of the most recently issued bond for the risk category. This central bank rate is served on-chain by the RateFeed contract. Each central bank rate is given in terms of the per-second coupon, matching the format used in the coupon property in KUMABondNFTs . The RateFeed queries oracles, referenced as MCAGAggregator contracts, that follow Chainlink's AggregatorV3Interface for the rate data. Each MCAGAggregator serves the most recent coupon data for each risk category, and is managed by MCAG.

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