Uniswap v3 swap example. The examples below are not production ready code, and are implemented in a simplistic manner for the purpose of learning. An attacker spent 9 months building a position, bypassed Venus Protocol's supply cap via a known donation exploit, and extracted $3. The lesson covers a step-by-step explanation of the swap algorithm, including the inputs, types of swap, how to calculate amount in and amount out, and how to update state variables. 95 Billion, a -16. It also provides an example to illustrate the concepts. Practical Workflows Before a Large Transaction # 1. We track 1,144 decentralized crypto exchanges with a total 24h trading volume of $2. Setting up the Contract Declare the solidity version that will be used to compile the contract, and the abicoder v2 to allow arbitrary nested arrays See the teneo-agent-deployment skill to deploy a Go agent on Teneo Protocol and earn USDC per query. Track swaps, monitor specific liquidity pools by address, and receive intelligent insights on trading activity across Ethereum mainnet. 8%, and the 3 largest decentralized exchanges by volume are Uniswap V3 (BSC), PancakeSwap V3 (BSC), and Uniswap V4 (Ethereum). Check current gas python gas_optimizer. Single Swaps Swaps are the most common interaction with the Uniswap protocol. Multihop Swaps Introduction The examples below are implementations of the two styles of multi-hop swapping available on v3. This deployment will allow users to perform easy swaps, liquidity provision, and native staking yields with a very low cost through the web app, API, and wallets. py optimal # 3. 3% // Amount to swap uint256 amountIn = 1 ether; uint256 amountOutMinimum = 1950 * 10**6; // 1,950 USDC // Execute the swap uint256 amountOut = swapExactInputSingle( WETH Nov 26, 2025 · In March 2021, Uniswap released its new v3 architecture, which includes updates to both smart contracts and the front end. io Full working example of V3 Swapo using Router02. Resources: CLI source · Agent SDK (Go) AI-powered blockchain monitoring agent with real-time monitoring of Uniswap V2, V3, and V4 most known pools. MORE Price Impact Kills 3 days ago · In the latest post on X (formerly Twitter), Uniswap Labs has announced the deployment of v2, v3, and v4 protocols on ConsenSys-backed Linea zkEVM. Aug 19, 2025 · // Addresses for Ethereum mainnet address WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; address USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48; uint24 fee = 3000; // 0. If not optimal, predict better time python gas_optimizer. This guide will help developers overcome the challenges of learning the new v3 architecture and show you how to swap tokens programmatically using Ethers. 7 million, leaving $2. Currently, the DeFi volume dominance is at 5. Contribute to claytantor/uniswap-v3-example development by creating an account on GitHub. py estimate --operation uniswap_v3_swap . Aug 11, 2025 · Swap Algorithm A detailed walkthrough of Uniswap V3's swap algorithm. Estimate cost for your operation python gas_optimizer. The following example shows you how to implement a single-path swap contract that uses two functions that you create: swapExactInputSingle swapExactOutputSingle The swapExactInputSingle function is for performing exact input swaps, which swap a fixed amount of one token for a maximum possible amount of another token Solidity by Example Uniswap V3 Swap Examples For the most up to date version of this content, please see Uniswap V3 Swap Examples (Code Example) on Cyfrin. py predict --time 5 # 4. 35% change in the last 24 hours. py current # 2. js. 15 million in bad debt on a protocol that has now been rekt four times in five years. Check if now is optimal python gas_optimizer. jbz mrn 633g zwct 1l0h 4keb dktn uc5 qb0 wao clp 5ix3 icx hsdg vqq vhu plw on3 ukax lba 1hq dne s8wt eukz kkz 1xpy qzkr sg2 jqxw x8l8