Pricing Modules

Pricing Modules are utility contracts that implement the IPricingModule interface and are used by the BiPoolManager during swaps to price the swaps. A pricing module has to implement two functions:
uint256 amountOut = pricingModule.getAmountOut(inBucket, outBucket, spread, amountIn);
uint256 amountIn = pricingModule.getAmountIn(inBucket, outBucket, spread, amountOut);
https://github.com/mento-protocol/mento-core/blob/main/contracts/interfaces/IPricingModule.sol
IPricingModule.sol
ConstantSumPricingModule
X∗p+Y=K(X+x)∗p+Y−y=KX * p + Y = K \newline
(X +x)*p + Y-y = KX∗p+Y=K(X+x)∗p+Y−y=K
Where XXX
is the bucket size of TokenIn, YYY
is the bucket size of TokenOut, xxx
 is the amountIn, yyy
 is the amountOut, KKK
is a constant, and ppp
 is the value of tokenIn quoted in tokenOut.
​
ConstantSumPricingModule is an IPricingModule that implements a constant-sum pricing formula for a two-asset pool. 
https://github.com/mento-protocol/mento-core/blob/main/contracts/swap/ConstantSumPricingModule.sol
ConstantSumPricingModule.sol
ConstantProductPricingModule
X∗p∗Y=K(X+x)∗p∗(Y−y)=KX*p*Y=K \newline
(X + x)*p*( Y - y) = KX∗p∗Y=K(X+x)∗p∗(Y−y)=K
Where XXX
is the bucket size of TokenIn, YYY
is the bucket size of TokenOut, xxx
is the amountIn, yyy
 is the amountOut, KKK
is a constant, and ppp
 is the value of tokenIn quoted in tokenOut.
ConstantProductPricingModule is an IPricingModule that implements a constant-product pricing formula for a two-asset pool.
https://github.com/mento-protocol/mento-core/blob/main/contracts/swap/ConstantProductPricingModule.sol
ConstantProductPricingModule.sol

BiPoolManager

SortedOracles

Last modified 1mo ago