Aave

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title: “Onboard Native USDC to Aave V3 Markets” author: “Aave Chan Initiative and @EzR3aL” discussions: “https://governance.aave.com/t/arfc-onboard-native-usdc-to-aave-v3-markets/15720”

Simple Summary

There are currently multiple proposals in discussion to onboard native USDC to the Aave v3 markets where it is currently not listed. This meta-proposal will onboard native USDC into the Aave V3 pools on Base, OP Mainnet and Polygon PoS.

Motivation

With the evolution of L2 networks, adopting native USDC versions becomes vital for efficiency. This proposal seeks a balanced transition from USDC.e to native USDC on all Aave v3 pools where native USDC is not already onboarded. TEMP CHECK proposals and some ARFC proposals have already been created on the forum, this proposal aims to combine these into a single meta-proposal for voting and execution to reduce governance overhead and speed up the onboarding process.

You can see the existing proposals on the forum below.

TEMP CHECK forum post stage:

• Base
• Polygon PoS

ARFC forum post stage:

• OP Mainnet

To streamline the process, we propose moving the Base and Polygon PoS native USDC onboarding proposals straight to ARFC, then combine all three ARFC proposals into a single AIP. This proposal also include similar change for USDC on Arbitrum.

Note that as part of the risk parameter harmonization, the liquidation threshold for some USDC.e markets will decrease. Risk managers gave their feedback on the matter accordingly.

Finaly, native USDC on base won’t get added to E-Mode as it doesn’t exist yet for this market.

Specification

Assets listing

The table below illustrates the configured risk parameters for USDC on Polygon POS

Parameter	Value
Isolation Mode	false
Borrowable	ENABLED
Collateral Enabled	true
Supply Cap (USDC)	50,000,000
Borrow Cap (USDC)	45,000,000
Debt Ceiling	USD 0
LTV	77 %
LT	80 %
Liquidation Bonus	5 %
Liquidation Protocol Fee	10 %
Reserve Factor	10 %
Base Variable Borrow Rate	0 %
Variable Slope 1	5 %
Variable Slope 2	60 %
Uoptimal	90 %
Stable Borrowing	DISABLED
Stable Slope1	5 %
Stable Slope2	60 %
Base Stable Rate Offset	0 %
Stable Rate Excess Offset	0 %
Optimal Stable To Total Debt Ratio	0 %
Flashloanable	ENABLED
Siloed Borrowing	DISABLED
Borrowable in Isolation	DISABLED
Oracle	0xfE4A8cc5b5B2366C1B58Bea3858e81843581b2F7

The table below illustrates the configured risk parameters for USDC on base

Parameter	Value
Isolation Mode	false
Borrowable	ENABLED
Collateral Enabled	true
Supply Cap (USDC)	10,000,000
Borrow Cap (USDC)	9,000,000
Debt Ceiling	USD 0
LTV	77 %
LT	80 %
Liquidation Bonus	5 %
Liquidation Protocol Fee	10 %
Reserve Factor	10 %
Base Variable Borrow Rate	0 %
Variable Slope 1	5 %
Variable Slope 2	60 %
Uoptimal	90 %
Stable Borrowing	DISABLED
Stable Slope1	5 %
Stable Slope2	300 %
Base Stable Rate Offset	0 %
Stable Rate Excess Offset	0 %
Optimal Stable To Total Debt Ratio	0 %
Flashloanable	ENABLED
Siloed Borrowing	DISABLED
Borrowable in Isolation	DISABLED
Oracle	0x7e860098F58bBFC8648a4311b374B1D669a2bc6B

Native USDC modification

The following changes will be implemented for the native version of USDC:

Optimism:

• LTV:
  • USDC: Decrease to 77% to match the others aave markets
• LT:
  • USDC: Decrease to 80% to match the others aave markets
• Slope1:
  • USDC: Increase to 5% to match the others aave markets.

Arbitrum:

• LTV:
  • USDC: Decrease to 77% to match the others aave markets
• LT:
  • USDC: Decrease to 80% to match the others aave markets

Bridged USDC modification

The following changes will be implemented for the bridged version of USDC:

Base:

• Supply Cap: 2m
• Borrow Cap: 2m
• Reserve Factor (RF):
  • USDC.e: Increase to 20% to incentivize native USDC usage.
• Slope1:
  • USDC.e: Increase to 7% to incentivize native USDC usage.
• Slope2:
  • USDC.e: Increase to 80% to incentivize native USDC usage.

Optimism:

• Supply Cap: 18m
• Borrow Cap: 15.5m
• Reserve Factor (RF):
  • USDC.e: Increase to 20% to incentivize native USDC usage.
• Slope1:
  • USDC.e: Increase to 7% to incentivize native USDC usage.
• Slope2:
  • USDC.e: Increase to 80% to incentivize native USDC usage.

Polygon:

• Supply Cap: 40m
• Borrow Cap: 36m
• Loan To Value (LTV): 77%
• LT: 80%
• LB: 5%
• Reserve Factor (RF):
  • USDC.e: Increase to 20% to incentivize native USDC usage.
• Slope1:
  • USDC.e: Increase to 7% to incentivize native USDC usage.
• Slope2:
  • USDC.e: Increase to 80% to incentivize native USDC usage.

Arbitrum:

• Supply Cap: 26m
• Borrow Cap: 24m
• Loan To Value (LTV): 77%
• LT: 80%
• LB: 5%
• Reserve Factor (RF):
• USDC.e: Increase to 20% to incentivize native USDC usage.
• Slope1:
• USDC.e: Increase to 7% to incentivize native USDC usage.
• Slope2:
• USDC.e: Increase to 80% to incentivize native USDC usage.

References

• Implementation: AaveV3Polygon, AaveV3Optimism, AaveV3Arbitrum, AaveV3Base
• Tests: AaveV3Polygon, AaveV3Optimism, AaveV3Arbitrum, AaveV3Base
• Snapshot: No Snapshot for Direct-to-AIP
• Discussion

Copyright

Copyright and related rights waived via CC0.