Add FRAX as Collateral to Aave V2

Simple Summary

FRAX is a stablecoin issued by Frax. It boasts being the first algorithmic stablecoin backed by on-chain collateral.


We propose to add FRAX as collateral to the Aave V2 market. Already used for lending on Aave, FRAX is an ideal candidate to be included on Aave as a collateral asset to provide more decentralized stablecoin alternatives.

The FRAX stablecoin is partially backed with on-chain collateral and partially backed algorithmically, according to a collateral ratio (CR) parameter that the system adjusts according to market conditions. In Frax v2, the protocol is able to mint FRAX into lending markets using Algorithmic Market Operations (AMOs), smart contracts which have the ability to print FRAX up to certain thresholds adjustable by governance.


The presence of stablecoins on Aave is a key benefit for lenders of the protocol, providing lenders borrow liquidity for stablecoins against volatile assets lent to Aave. FRAX, a reliable and popular stablecoin in DeFi, would be an asset to Aave in this respect. FRAX also brings a high volume of liquidity and motivated users, which would in turn direct more liquidity to Aave.

Most importantly, FRAX is already heavily used by Aave. Users are already able to lend FRAX through Aave. This demonstrates that Aave has tested and approved of FRAX and its stability. A total of 11.9M of FRAX has been borrowed through Aave, and there is 26.6M in available liquidity. Given the success of FRAX on Aave, the next step is to enable FRAX as collateral.

FRAX has remained pegged to USD since its launch in 2020. The 30 day high and low are $1.03 and $0.9741 respectively. FRAX is partially backed with on-chain collateral and partially backed algorithmically, a somewhat different approach to soft-pegging than other stablecoins. FRAX has shown undeniable success in maintaining its peg at $1. FRAX is ranked number eleven out of all stablecoins on the market based on market capitalization.

FRAX is already listed on Decentralized Exchanges (DEXs) such as Uniswap, Curve Finance, and Sushiswap. Overall, Aave already supports soft-pegged stablecoins that are backed by mechanisms such as on-chain collateral, algorithms, and arbitrage incentives.



  • What is the link between the author of the AIP and the Asset?
    • None
  • Provide a brief high-level overview of the project and the token
    • FRAX is a soft-pegged stablecoin from Frax, the first algorithmic-stablecoin backed through on-chain collateral and algorithmically.
  • Explain positioning of the token in the AAVE ecosystem. Why would it be a good borrow or collateral asset?
    • Lending has already been enabled for FRAX. If listed as collateral, FRAX would become an important stablecoin option for Aave lenders. As a reliable stablecoin, FRAX provides a new opportunity for Aave users to borrow against volatile assets.
  • Provide a brief history of the project and the different components: DAO (is it live?), products (are they live?). How did it overcome some of the challenges it faced?
    • FRAX launched in late 2020 and currently has over $2.6B in circulating FRAX. FRAX has never broken the peg of $1 despite sharp market downturns since its launch. Frax has two tokens, the FRAX stablecoin pegged at $1 and FXS, the value accrual and governance token of the entire Frax ecosystem.
  • How is the asset currently used?
    • FRAX is currently used as a stablecoin in decentralized exchanges such as Curve, SushiSwap, and Uniswap.
  • Emission schedule
    • FRAX is a stablecoin that can be freely minted and redeemed via the Frax protocol. Currently, Frax is mostly used in AMM trading pairs and to liquidity mine the Frax governance token, FXS.
  • Token & protocol permissions and upgradability
    • Frax can always be minted and redeemed for $1 worth of collateral and FXS. In order to mint Frax, it is necessary to deposit the appropriate ratio of collateral and to burn FXS. On the other hand, while redeeming Frax the redeemer is credited with the appropriate ratio of collateral and FXS.
  • Market data (Market Cap, 24h Volume, Volatility, Exchanges, Maturity)
    • Market Cap: $$2,629,494,251
    • 24h Volume: $50,464,403
    • Volatility: Extremely Low
    • Maturity: Early-Mid
  • Social channels data (Size of communities, activity on Github)
    • 33.2K followers on Twitter, 3.9K members on Discord, Github is updated frequently.
  • Contracts date of deployments, number of transactions, number of holders for tokens
    • Date of Deployment: December 26th, 2020
    • Number of Transactions: 48.4K
    • Number of Holders: 6.4K


FRAX has already been tested and approved by Aave as it is listed for lending. Being listed as collateral is a natural next step for FRAX on Aave, allowing users to post FRAX in order to borrow assets through Aave.

FRAX offers a unique use case for a collateral token in that Frax uses a fractional and algorithmic mechanism to maintain stability, the first of its kind. This functions like so:

  • If FRAX trades below $1, the protocol increases the collateral ratio in steps of 0.25%
  • If FRAX trades above $1, the protocol decreases the collateral ratio in steps of 0.25%

The refresh rate and step parameters can be adjusted through governance to suit the stablecoin purpose and ensure the stability through economic changes. Instead of averaging the prices of stablecoin pools on Uniswap, FRAX calculates a time-weighted average of the Uniswap pair price and the ETH:USD Chainlink oracle in order to obtain a true USD price.

The Frax community offers an active user base that would take the opportunity to borrow on Aave posting FRAX as collateral. Aave can benefit from this increase in users and revenue not only from the lending of FRAX that is already permitted, but the additional users that will want to deposit FRAX as collateral. Adding FRAX to Aave not only brings these users, but provides another stablecoin for existing Aave lenders to take advantage of.

Since it is already approved for lending, being added as a collateral asset is the next step for FRAX on Aave.


FRAX will be used as collateral with the following suggested parameters to be finalized via Aave governance:

  • Loan-to-Value (LTV): 50%
  • Liquidation Threshold: 60%
  • Liquidation Bonus: 6.5%

A note from the proposer, Bribe Protocol:

Bribe is a new DeFi protocol that pays DAO token holders to govern. Our first protocol integration is Aave. We will be creating an Aave pool on Bribe where holders of AAVE and stkAAVE can deposit their tokens and earn rewards while other users bid for their voting power. Learn more about Bribe and how we’re integrating Aave here:

This is the second AIP that we have released, the first being our proposal to add MIM to Aave V2. These are part of a series of proposals that we will be submitting in order to boost governance on Aave.

Audits/Security Reviews




Whitepaper: Introduction - Frax ¤ Finance


GitHub: · GitHub



FRAX token contract: 0x853d955acef822db058eb8505911ed77f175b99e

Telegram: Telegram: Contact @fraxfinance 2

Discord: Frax Finance


Copyright and related rights waived via CC0.


@BribeProtocol , nice to see you here again.

I enjoy this quote below and can endorse such a mission:

Growing governance participation while driving the volume of proposals is important - as long as they are beneficial. Are you focused solely on New Asset listings? And if so, are they only stablecoins?

Interested to see more of this series.

Thanks for your response @fig.

We will actually be answering these questions in a blog post soon so stay tuned!

Hello! To give everyone a quick update, we have released a risk assessment for FRAX on Medium here:

We believe that FRAX has earned its spot among collateral-enabled tokens on Aave.

FRAX is a stablecoin collateralized primarily by a diverse portfolio of stablecoin liquidity positions. As measured by market cap ($2B+) and trading volume — FRAX is a top-10 stablecoin with a high level of on-chain liquidity. Its market cap has grown almost 20x since first being listed as an asset an Aave.

Per our analysis, FRAX is expected to behave similarly to DAI with respect to everyday liquidations. Since December 2020, approx. 73 liquidations (~$4M at market value) have occurred for DAI on Aave v2. This was against a total of 18,904 loans originated (worth ~$6.9B).

The findings of the risk assessment suggest that FRAX would add negligible risk to Aave in lieu of a black swan event such as extreme market volatility or the collapse of a stablecoin. Even in such cases, FRAX’s diversified collateral portfolio and FXS treasury may help to insulate it from certain shocks.

We encourage community discussion around this proposal (FRAX - LTV 50% / Threshold 60% / Bonus 6.5%) before we move it forward to an on-chain vote.

As just a curious passerby, where is this discussion at this stage? What is the next step to this proposal?

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FRAX integration with Aave, for now, has been quite successful as presented by the OP, but enabling an asset as collateral on Aave is one of the most critical changes affecting the protocol, so would like some clarification on some aspects:

  1. How much is the dependency of the price of FRAX (and its USD-pegged nature) with the Curve system? As I can see, close to 60% of the supply of FRAX is deposited at the moment on the Curve platform.
  2. Which are the current use cases of FRAX? In general, is a representative factor for what can be considered “good” collateral.
  3. It is quite difficult to believe that there is no relation between an asset and the entity proposing its transition to collateral asset on Aave. Would appreciate further clarification on the following
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