FAQ - Euler

General
What is Euler? 
Euler is a non-custodial protocol on Ethereum that allows users to lend and borrow almost any crypto asset. Learn more about how Euler works by reading the white paper here.
Who developed Euler? 
Euler was initially created by a team of developers at a company called Euler XYZ Ltd (see website here). Today it is progressively decentralising and receives contributions from the external developer community as well as ongoing contributions from Euler XYZ.
What is EulerDAO? 
EulerDAO is a decentralised autonomous organisation encapsulating all holders of a governance token called EUL. Holders of the token have voting powers to propose and make changes to the underlying code of the Euler Protocol.
What is the Euler Foundation?
Since DAOs not have a formal legal strucutre, the Euler Foundation was established as a non-profit Foundation Company designed to represent EulerDAO in the ‘real world’. The Euler Foundation has no shareholders and cannot pay out dividends to its members. Its purpose is to provide a vehicle by which EulerDAO can sign a contract or engage a company for a service that the DAO requires.
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Community Involvement
How can I get involved in EulerDAO? 
Join the Discord and meet the community, make proposals and discussion on the governance forum, or send a message if you have other ideas of contributing to the protocol.
Where is the developer documentation? 
Please refer to the Developers section and check out the Euler SDK.
Where are your branding guidelines/materials? 
The branding materials are located at the following link: euler.finance/branding. Copyright is owned by the Euler Foundation. 
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Euler dApp
How do I deposit and borrow? 
Go to the Euler app, login via the Connect button on ETH mainnet. Click on the Quick Action button. You can deposit and borrow through the same named action buttons. Choose the asset and amounts, then approve of the transactions.
How do I activate a market? 
Search for an asset in the search bar on the Euler app. Unlisted assets can be activated by the Activate button, which will ask you to initiate the transaction. Once complete, the asset will be listed and activated. 
Why can't I find a specific token to activate? 
Some tokens might not be on the token list or might not have a pool on Uniswap v3. Please send a message if you have trouble finding an unlisted asset. 
What are asset tiers? 
Euler uses risk-based asset tiers to protect the protocol and its users. Isolated and Cross assets cannot be used as collateral, but Cross assets can be borrowed alongside other assets, while Isolated assets cannot. 
What are sub-accounts? 
​Sub-accounts enable users to isolate positions into different accounts.
What oracle does Euler use? 
Euler uses Uniswap V3 Time Weighted Average Price (TWAP) as the pricing oracle. 
What is the oracle rating? 
The Oracle Rating system attempts to rank Uniswap v3 price oracles for different markets high, medium, or low based on the ease with which they can be manipulated. 
What are the reserves? 
​Reserves are protocol-owned liquidity deposited on Euler to provide a backstop against a 'run on the bank' scenario. Reserves build up over time as borrowers pay interest on their loans. The reserves are ultimately controlled by EulerDAO Governance.
How can an asset become collateral? 
An asset must have substantial liquidity with wide distribution in its Uniswap V3 WETH paired pool. If the asset has a low-risk oracle, it is in a better position to be regarded as a safer asset to become collateral through a governance proposal. 
Is Euler on any other chains/L2s? 
Euler is currently only on Ethereum Mainnet. Euler is open to and exploring other chains and layers, but nothing is currently imminent.
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Features
What are Mint and Burn? 
​Mint enables users to more efficiently create leveraged positions of borrowers and deposits. For example, a user can deposit $1,000 USDC, and mint $2,000 USDC. Then you will have $3,000 USDC deposits, and $2,000 USDC liabilities. Burn closes Mint positions.
What does the Transfer action do? 
Users can transfer deposits (eTokens) and debt (dTokens) to other accounts. Always check the accounts involved in your operation will have sufficient collateral to support it.
Can I swap tokens? 
Yes, the swap feature enables users to exchange one deposited asset for another using Uniswap V3 and 1inch DEXes.
How can I short a token? 
The Short action allows users to build a leveraged short position by borrowing and then immediately selling an asset on an external exchange, including 1inch and Uniswap. 
Should I mine at 19x? 
Euler does not give financial advice, but users should note that mining at 19x is highly risky and can lead to liquidation if the user’s collateral cannot cover the interest fees. Mining at 19x most often liquidates positions within the same day it is created.
What is Time To Liquidation (TTL)? 
​TTL allows users to see the amount of time they have until their position is liquidated based on the current interest rates and prices of those positions.
What is a soft liquidation? 
Euler allows liquidators to repay up to the amount needed to bring a violator back out of violation (plus an additional safety factor). Other protocols are fixed so that liquidators can pay off up to half a borrower's loan in one go, regardless of how underwater their position is.
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Gauges & EUL Distribution
How can I claim EUL tokens? 
Users can go to the Euler app, click on the Claim button in the navbar and claim any available tokens of previous epochs in the Distribution window once EUL tokens are available to claim. 
What utility does EUL have? 
EUL’s main utility is as a governance token for the Euler protocol. Users with EUL can have a say in the future decisions and direction, as well as the EUL distribution in the Euler gauges.
What is the distribution of EUL tokens for borrowers? 
The distribution is decided by the amount of EUL tokens staked in the gauges. 
How are markets decided for each epoch? 
Users can add or remove EUL distribution eligible markets simply by staking EUL tokens in their preferred gauges. Markets not in the top 10 staked will not be eligible for EUL distribution.
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EUL Token
Is there a token? How can I earn it? 
The Euler token (EUL) is distributed to borrowers on select markets on the platform. Please see the Governance section for more details. 
What are the tokenomics? 
Allocation, vesting and other information about the EUL token can be found in the EUL section under Governance.
Is there a TGE/ICO/IDO? 
There is no public sale.
Where can I trade EUL? 
The EUL token is not yet released to the public.
How do I get an airdrop? 
There is no airdrop. 1% of the supply was allocated to users who interacted with the dApp during Epoch 0 as a one-off retroactive distribution. 
Do testnet users receive rewards? 
No, testnet is to preview upcoming features and for users to learn about the protocol without any mainnet gas fees. 
Can I invest in Euler for tokens? 
No, you can only receive EUL distribution by borrowing.
Someone messaged me promising free tokens/ICO/NFTs/etc, is it real? 
No, that is fake. No one related to Euler will ever message anyone directly, nor offer free tokens or investments of any kind.
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Partnerships
Who can I contact about partnerships/integrations? 
Feel free to reach out through Discord or other platforms in the Quick Links section. Also read the integration guide for more details.
Can we list EUL on our exchange? 
EulerDAO cannot advise on exchange listings, nor pay for any listings.
Can we offer our token in your liquidity mining programme? 
Euler will be adding this feature in the near future. Please get in touch if you’d like to integrate with the distribution mechanisms.
Can you market our company/token if we pay you or activate our token? 
Sorry, Euler does not accept payments or donations of any kind to promote activated markets.
Do you have an Ambassador programme? 
Not yet, but you can earn Epoints for contributing to the Euler community. For more information, please check out the blog post on Epoints.