# Your Guide to Unisave

TL;DR: Unisave is a Uniswap compatible decentralized exchange protocol which introduced a few new features. There are:

- Auto Mining 🔨
- No Protocol Fee 🎫
- Self-adjusting Market Maker Algorithm 📈

# What is Unisave?

Unisave is a Uniswap compatible decentralized exchange protocol which introduced a few experimental features. Similar to Uniswapm Sushiswap, PancakeSwap, BakerySwap, BurgerSwap, and other protocols, it allows users to earn tokens by providing liquidity as well.

# Connecting MetaMask to Unisave
Before connecting your MetaMask wallet to Unisave, you need to connect your wallet to the Binance Smart Chain. If you don’t know how to do that, check out Connecting MetaMask to Binance Smart Chain.

Next, go to the Unisave homepage. Click the “Connect Wallet” button. Make sure you switched from the Mainnet Ethereum network to Binance Smart Chain.

After connecting your wallet, you will be able to see and navigate across the Unisave products (Swap, Pool, Info, Bridge, etc.).

# How to use Unisave and what is the difference

Basically, using Unisave is same with other Uniswaps. But there are some difference between Unisave and other Uniswap.

### Auto Mining 🔨

First of all, part of the underlying assets is mining in YFII when market volatility is low.

The biggest pain point of Uniswap is the extremely low asset utilization. These days people can invest their underlying asset into many DeFi aggregator system such as YFI, DFI and Harvest to get a considerable passive income, becoming more and more competitive against trading fees in Uniswap, not to mention there is no impermanent loss.

To address this problem, we introduce a mining system in Unisave. Each Unisave-pair can been seen as an aggregator and invest into a strategy which have no funds management fees sucn as Fortube, DFI, etcs. (or YFI if [YIP-51](https://gov.yearn.finance/t/yip-51-set-vault-v2-fee-structure/7752) gets passed.)

Take the BUSD/ETH pair as an example.

> Part of the underlying assets of a Unisave-Pair is connected into other DeFi aggregator.

iBUSD and iETH is an interest-earning assets provided by YFII DeFi aggregator. Your LP will become more valuable as time goes on.

### No protocol fee 🎫

Unisave designed as a public good, since the community can be driven by mining revenues, there is no need to add a protocol fees any more. Allowing us to be the 1st DEX with no protocol fees, reducing the gas fees a little bit as well.


### Self-adjusting Market Maker Algorithm 📈

To improve the trading experience and reduce transaction slippage, we introduce a new technique called dummy liquidity —— the liquidity which doesn’t backup by real assets, but will be used in every swap function.


Dummy liquidity can be set by multi-signature time lock contracts mannually, by doing so LP token will be leveraged and bounded into a limited trading window.

Dummy liquidity can also be dynamic adjust by a well-designed observer contract, by doing so, Unisave will turn the undelying AMM algorithm from Constant Product Market Maker Algorithm into Self-adjusting Market Maker Algorithm. Unisave could be seen as a Morphlin, simulating the bouding curve into other kinds of AMMs such as Balancer, Curve, DODO and Bancor V2, etcs.

By the way, Unisave has a great advantage when trading between stable tokens. You can compare our slippage with other exchanges by yourself ;).


Note that dummy liquidity is only taken into account when calculating price slippage, but does not affect liquidity management. This will give Unisave's liquidity management some special properties.

First, the rate when adding and remove liquidity might be different with other Uniswap-like exchanges, it does not affect your actual earnings but might be a little bit confusing if you are not familiar with Unisave SMM algorithm.

Second, unlike traditional uniswap, there will be some price impact when adding and removing liquidity. Although it can be resolved by a special route03 contract which will be introduced in the future.

## Is my fund safu?

Blockchain security company PeckSheild has audited the first version of the smart contract during early September 2020. As of November 2020, there have been no reported issues with Unisave over monthes.

However, Unisave the fund secuirity is heavily depends on other DeFi protocol such as YFII and Fortube, depositing money into a smart contract is always risky, as there may be bugs that didn’t get noticed during the code audit. You should never deposit funds that you can’t afford to lose.