# Liquidity / staking pool At the moment, Snapshot already supports calculating the Voting Power of the underlying token in the LP/staking contract from the most popular AMMs[^1] like Uniswap v2 and v3, Balancer, or SushiSwap. This page only goes through popular strategies as projects may have a different method to call deposited balance in their contracts, which is often customized for a specific use case. By enabling such a strategy in your space, you can allow the proposal to capture more users interested in your governance. Some spaces allow only users holding tokens in liquidity/staking pools to have Voting Power. ### [uniswap](https://snapshot.org/#/strategy/uniswap) The strategy fetches the balance of the input token address in all **Uniswap-v2** liquidity pools. This allows uni-v2 LP token holders to vote based on the underlying token cumulated in each pool. {% hint style="info" %} For instance, users who have 1 DAI in the DAI-USDC pool, and 2 DAI in the DAI-ETH pool, will have **3 Voting Power**. {% endhint %} **Strategy setup:** ``` { "address": "0x6b175474e89094c44da98b954eedeac495271d0f", "symbol": "DAI" } ``` You can test it out in the **Playground on Snapshot**: {% embed url=".." %} ### [staked-uniswap](https://snapshot.org/#/strategy/staked-uniswap) Many platforms offer decent yields on one's Uniswap LP tokens. By staking in their farms, users transfer their LP tokens to the contract they are interacting with (staking contract) and then can earn rewards from the farm they have joined. The specific type of LP that can be farmed depends on the individual platforms. The `staked-uniswap` strategy allows you to get token balance of an LP in a staking contract. **Strategy setup:** * `tokenAddress`: the underlying token you want to use to calculate Voting Power * `uniswapAddress`: the Uniswap LP address where users can deposit their token * `stakingAddress`: the staking contract address where users stake their LP token ``` { "tokenAddress": "0x6e36556b3ee5aa28def2a8ec3dae30ec2b208739", "uniswapAddress": "0xdf6b861b4fbcfaffb62dd1906fcd3a863955704b", "stakingAddress": "0xfd15657341492d1918e3a8b7421e9627d52056e9", "symbol": "BUILD", "decimals": 18 } ``` You can test it out in the **Playground on Snapshot**: {% embed url="." %} ### [uniswap-v3](https://snapshot.org/#/strategy/uniswap-v3) In comparison with [v2](#uniswap), **Uniswap v3** provides users with the most flexibility and granular control over personal assets by introducing features like concentrated liquidity and multiple LP fee tiers per pair — 0.05%, 0.30%, and 1.00%. In this context, the USDC / ETH LPs with 0.3% and 0.05% fees represent different contract addresses (`poolAddress)` respectively. The demo illustrates how to get **USDC** balance in the **USDC / ETH** 0.3% liquidity pool. If you want to calculate the other token in the pool, you can change the param`tokenReserve` to 1. **Strategy setup:** ``` { "symbol": "USDC", "poolAddress": "0x8ad599c3A0ff1De082011EFDDc58f1908eb6e6D8", "tokenReserve": 0 } ``` You can test it out in the **Playground on Snapshot**: {% embed url=".." %} ### [sushiswap](https://snapshot.org/#/strategy/sushiswap) LP tokens provided in **SushiSwap** are called **SLP** tokens, and the SLP tokens can be staked into the farm (MasterChef LP Staking Pool) to earn rewards. This strategy can return the balance of the underlying token in SushiSwap's **LP pools and farms** as well. **Strategy setup:** * `address` - the underlying token address * `useStakedBalances` - if **true** it will also return the token balances from the MasterChef LP Staking Pool * `masterchefVersion` - if **v2** it will return the token balances from the MasterChef V2 staking contract instead of MasterChef V1. ``` { "address": "0x0Ae055097C6d159879521C384F1D2123D1f195e6", "useStakedBalances": "true", "masterchefVersion": "v1" } ``` You can test it out in the **Playground on Snapshot**: {% embed url="." %} ### [masterchef-pool-balance](https://snapshot.org/#/strategy/masterchef-pool-balance) The MasterChef contract has been developed by many projects based on SushiSwap’s original contract like [pancake's syrup pool](https://docs.pancakeswap.finance/products/syrup-pool). With MasterChef, **users can stake their tokens and in exchange they will get a token reward.** The strategy is more generic and it gets the balance of the LP token or the underlying base token in the LP from a MasterChef staking pool. **Strategy setup:** * `chefAddress`: Masterchef contract address * `pid`: masterchef pool id (starting with zero) * `uniPairAddress`: address of a Uniswap pair (or a sushi pair or any other with the same interface) * if `uniPairAddress` is null, returns staked **LP token balance** as is * if the `uniPairAddress` option is provided, converts staked LP token balance to **base token** balance (based on the pair total supply and base token reserve) * `tokenIndex`: index of a token in LP pair, by default 0, can switch to 1 for another base token * `weight`: integer multiplier of the result (for combining strategies with different weights | **optional**) * `weightDecimals`: integer divisor of the result (1 gives a decimal before the result | **optional**) ``` { "symbol": "CHEF", "chefAddress": "0xD38abbAeC03a9FF287eFc9a5F0d0580E07335D1D", "uniPairAddress": null, "tokenIndex": null, "pid": "0", "weight": 1, "weightDecimals": 0 } ``` You can test it out in the **Playground on Snapshot**: {% embed url="." %} ### [contract-call](https://snapshot.org/#/strategy/contract-call) A lot of use cases are beyond regular LP/staking scope, for example calculating the balance of staked NFT or from a custom contract. The good news is, if there's a method in your contract that reads the balance of the staked token with a single call (interaction with the Smart Contract), you don't need to create a new strategy. Instead, use `contract-call` strategy, which allows **any contract method** to be used to calculate voter scores. {% hint style="info" %} **As this is a more advanced strategy, don't hesitate to reach out to our support team on** [**Help Center**](https://help.snapshot.org/en/)**!** {% endhint %} **Strategy setup:** ``` { "symbol": "vBNT", "address": "0x892f481BD6E9d7D26aE365211D9B45175d5D00e4", "decimals": 18, "methodABI": { "name": "votesOf", "type": "function", "inputs": [ { "name": "_voter", "type": "address", "internalType": "address" } ], "outputs": [ { "name": "", "type": "uint256", "internalType": "uint256" } ], "stateMutability": "view" } } ``` You can test it out in the **Playground on Snapshot**: {% embed url="" %} [^1]: Automated Market Makers