SIP-348: Enable USDC for Andromeda on Base


Simple Summary

Configure the Andromeda Base V3 deployment to accept USDC collateral, and enable ETH and BTC markets on Perps V3.


This SIP proposes to configure the Andromeda Base V3 deployment such that it accepts USDC collateral for both LP and perp margin. Additionally, ETH and BTC markets will be enabled on Perps V3. Focussing on USDC collateral limits the complexity of the deployment, reduces risk and increases alignment with the Base network. The complete Andromeda on Base release also requires SIP-345, SIP-337 and SIP-315.


Configuring Andromeda on Base to accept USDC for LPing and perp margin opens up Synthetix to a new set of users. The initial configuration should be conservative and leave room to expand as usage increases.



This SIP will define the Andromeda Base V3 deployment settings to accept USDC as collateral for LPing, and margin for trading Perps. It will also activate ETH and BTC markets on Perps V3 with conservative configurations. A USDC Spot Market and Wrapper will be implemented so that both LPs and perp traders only have to think about USDC, and utilizes the existing configrtuation capability of the underlying systems. This configuration treats USDC as a constant valued at $1. The spot market wrapper will be used to produce the 1:1 redeemable synth sUSDC for LPing, and swapping to sUSD for perp margin.


The introduction of USDC as collateral, with a constant value, provides an opportunity to test the market's appetite in a controlled manner before adding more complex assets like ETH. By using a spot market wrapper, a 1:1 redeemable synth sUSDC will facilitate Perps trading. The initial limitation to $5m of LP collateral, and the disabling of minting is a conscious decision to increase the liquidity available to the Perps Market.

Technical Specification

Configure the core system: Require Markets to have 125% collateralization, and require at least 1 days before being able to withdraw collateral

  • minimum_liquidity_ratio = 125%
  • account_timeout_withdraw = 1 day

Enable USDC as collateral, at a fixed price of $1, and maximum of $5m

  • usdc_address = 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
  • registerNode = CONSTANT NODE, 1
  • synthUsdcMaxMarketCollateral = 5000000

Disable minting, and set liquidation at 110%

  • issuanceRatioD18 = MaxUint256
  • liquidationRatioD18 = 1.10

Global Perps Market configuration

  • maxCollateralAmounts = 1000000 ($1m maximum perp margin per account to be conservative)
  • synthDeductionPriority = [0] (no liquidation priority required with only one margin type)
  • maxPositionsPerAccount = 5 (max 5 positions per account to reduce gas.)
  • maxCollateralsPerAccount = 1 (sUSD is the only perp margin enabled)

Configure ETH and BTC Perps Markets:

Variable ETH Market BTC Market
PerpsMarketId 100 200
SkewScale 1000000 1000000
MaxFundingVelocity 9 9
MakerFeeRatio 0.0002 0.0002
TakerFeeRatio 0.0005 0.0005
MaxMarketSize 525 (~$1m) 30 (~$1m)
InitialMarginRatio 1 1
MaintenanceMarginScalar 0.5 0.5
MinimumInitialMarginRatio 0.02 0.02
LiquidationRewardRatioD18 0.01 0.01
MaxLiquidationLimitAccumulationMultiplier 1 0.5
MaxSecondsInLiquidationWindow 30 30
MinimumPositionMargin 0 0
LockedOiRatio 0.5 0.5
SynthMaxCollateralAmount <%= MaxUint256 %> <%= MaxUint256 %>
MaxLiquidationPd 0.0016 0.0016
flagRewardRatioD18 2 2
strictStalenessTolerance 30 30

Test Cases

Test cases will be provided with the implementation to ensure that the Andromeda Base V3 deployment correctly accepts USDC and that ETH and BTC markets operate as expected on Perps V3.

Configurable Values (Via SCCP)

All variables of the deployed V3 system.

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