How to use EthCash（ethcash.fi）

Download and Connect MetaMask

1. You must download Google Chrome explorer：https://www.google.com/intl/zh-CN/chrome/

2. Download and install MetaMask：Github: metamask-chrome-9.4.0.zip

3. Create or import an account

4. Select “Rinkeby Test Network” to deploy in MetaMask.

5. After refreshing the page, “Metamask Connected” will pop up, then all the function is available.

Add “eUSD” in MetaMask

1. Open MetaMask extension and click “Add Token”

2. Fill in the token information below and click the “Next”

Token Contract Address: 0x0935E6E4D64216fFD5f1546E45092E613C9422D6

Token Symbol：eUSD

3. Click “Add Token”, then token added

How to create vault

1. Click “Create Vault”, select an asset you will deposit, and enter the amount, the system will count the debt amount for you.

2. Click “Deposit and Create Vault”, confirm the transaction on your wallet.

3. After confirmation, Vault is created

4. You can generate eUSD or back to the Buildr homepage to view more details of your current deposit and debt.

Generate eUSD

1. Click “Generate” and the system will fill in all eUSD by default

*Generate eUSD will lower the amount of eUSD generating and generate eUSD debt

2. Click “Next” and confirm the information in the pop-up

3. Click “Confirm” and confirm the transaction on your wallet

4. The transaction sent, waiting for the network confirmation

5. You can view the generating eUSD in your MetaMask wallet.

*It will be deducted a small transaction fee to generate eUSD.

Deposit

1. Click “Deposit” on the Buildr homepage

2. Enter the amount you wish to deposit and click “Next”

3. Make a second confirmation in the pop-up

4. Confirm the transaction on your wallet.

• After the network confirmation, deposit success

Payback your debt

1. You will see your debt after successful generating eUSD

*The debt can be paid off after 24h, each generating will update the time.

2. Click “Current Debt” and enter the amount of eUSD debt you will repay.

*Repay eUSD will reduce current debt and lower liquidation price.

3. Make a second confirmation in the pop-up

4. Confirm the transaction in your MetaMask wallet and the repayment is successful after the network confirmation

Withdraw your collateral

1. You can see the amount of collateral that can be withdrawn.

2. Click the button and enter the amount of collateral to be withdrawn

3. Click “Next”, confirm the transaction in the wallet, wait for the network confirmation, the collateral is successfully withdrawn

Exchange

1. Select the trading pair on the left and trade on the right

Provide Liquidity Get LP

1. Take USDT/eUSD trading pair as an example：

You can get USDT/eUSD LP by providing liquidity for USDT/eUSD trade pairs.

2. Click “Input”, it will pop up the window as the figure below.

• Input both “eUSD” and “USDT” at current price of “eUSD” and “USDT” tokens.
• Click “Next”

3. For the first transaction, you need to approve in MetaMask wallet

4. Click “Next” and confirm the order in your wallet, then providing liquidity has successful.

Liquidity Mining

1. Choose liquidity pool

*Before participating in Liquidity Mining, please input liquidity in “Liquidity Pool” to get LP.

2. Click the “Stake LP” button and Input the amount of tokens for staking

3. For the first transaction, you need to approve in MetaMask wallet

4. Click the “Next” button

5. Confirm the information you will stake in the pop-up and confirm the transaction in MetaMask wallet.

6. Refreshing the page, then you can see your staked amount of LP

* After successful staking, you can claim mining rewards and unstake LP at any time

How to use “Synth”

1. Please first transfer the eUSD from the MetaMask wallet to the Synth account before trading synth assets.

• Click “Deposit”
• Enter the amount you wish to deposit
• confirm

*eUSD can be withdrawn after 24h, also each deposit will update the time

2. Confirm the transaction in MetaMask wallet, then deposit has successful

3. You will see eUSD balance after refreshing the page, which is used to trade synth assets.

4. Trade synth assets

• Pull the slider or enter the number of assets to be traded
• Then click”Buy eBTC”

5. Make a second confirmation in the pop-up

6. Confirm the transaction in the wallet, then trading has successful