Projects in Awesome Lists tagged with evm

https://github.com/zchn/eth-acl2

An ACL2 formalization of the Ethereum VM, aiming to be both executable and suitable for proving interesting properties of EVM contracts.

acl2 ethereum evm formal-methods formalization proofs verification

Last synced: 17 Nov 2024

https://github.com/ltfschoen/xcmtemplate

Building Cross-chain (XCM) DApps with Docker

astar blockchain cargo-contract docker ethereum evm ink ink-python moonbeam polkadot polkadot-js python rust smart-contracts solidity substrate substrate-contracts-node truffle wasm webassembly

Last synced: 17 Oct 2024

https://github.com/briangershon/openzeppelin-erc721-upgradeable

Develop, test and deploy an upgradeable NFT contract based on OpenZeppelin ERC721 Solidity framework and Hardhat development environment. Deploy to any EVM blockchain. TypeScript.

ethereum evm github-actions hardhat openzeppelin polygon solidity solidity-contracts starter-template testing typescript upgradeable-smart-contract

Last synced: 13 Nov 2024

https://github.com/zemse/poseidon2-evm

Poseidon2 hash function implemented in Solidity

evm huff poseidon2 solidity yul

Last synced: 09 Jan 2025

https://github.com/cosmos/gravity-dex-site

Gravity DEX: The Cosmos Interchain Exchange

cosmos dex evm gravity-dex interchain

Last synced: 24 Dec 2024

https://github.com/carlosalegreur/audits-by-carlosalegreur

Here is a summary and navigation hub to all the audits I've conducted and I'm allowed to show.

audit auditor audits blockchain-security evm solidity web3

Last synced: 08 Nov 2024

https://github.com/kodadot/click

Indexer for EVM based Polkadot parachains

evm evm-blockchain graphql hacktoberfest subsquid

Last synced: 11 Nov 2024

https://github.com/catalogfi/swapper

Atomic swapping scripts for Bitcoin and EVM blockchains.

atomic-swap bitcoin bitcoin-script catalog ethereum evm smart-contract solidity

Last synced: 23 Nov 2024

https://github.com/ahmedali8/detect-evm-proxy

Detect proxy contracts and their target addresses using an EIP-1193 compatible JSON-RPC request function

data-science ethereum evm gnosis multisig proxy

Last synced: 16 Nov 2024

https://github.com/sambacha/solidity-pegjs-parser

Solidity Parser for Coverage Testing utilizing new Peggy PEG.js Parser

ast codecov ethereum evm hardhat parser solhint solidity solium testing

Last synced: 26 Oct 2024

https://github.com/govtechsg/cbdc-purpose-bound-money

The monorepo for the Purpose Bound Money (PBM) smart contracts and websites.

blockchain cbdc defi digital-currency digital-money ethereum evm javascript pbm polygon reactjs smart-contracts solidity typescript

Last synced: 03 Jan 2025

https://github.com/nachomazzara/cross-chain-identity

Multichain delegation | soft usage of NFTS

blockchain cadence ethereum evm solidity web3

Last synced: 19 Dec 2024

https://github.com/contractshark/raplus

RA+ - EVM Exploit generator

bytecode dissassembler ethereum evm solidity

Last synced: 17 Jan 2025

https://github.com/wbnns/aiwa

Get addresses that interacted with an address on Ethereum and Base

airdrop-helper allowlist base basescan csv discovery ethereum etherscan evm inspector op-stack superchain

Last synced: 28 Oct 2024

https://github.com/kavorix/crypto-wallet

Cypto Wallet that support Ethereum, Bitcoin, Solana, Binance Smart Chain, Polygon etc.

avalanche binance-smart-chain bitcoin blockchain cryptocurrency crytography erc20 eth ethereum evm polygon solana wallet

Last synced: 28 Jan 2025

https://github.com/sambacha/disco-ecdsa

Gas and Size Optimized ECDSA contracts from Open Zeppelin

ecdsa ethereum evm gas-optimized openzeppelin solidity

Last synced: 14 Dec 2024

https://github.com/superical/time-lock-vault

A simple Solidity smart contract library for building ERC20 time-lock vaults

blockchain erc20 evm smart-contracts solidity solidity-contracts time-lock vault

Last synced: 12 Nov 2024

https://github.com/ilyasergey/scilla-benchmarks

Benchmarking suite for testing the performance of Scilla against EVM

benchmarks evm oopsla19 scilla smart-contracts zilliqa

Last synced: 01 Feb 2025

https://github.com/weavevm/elciao

EVM light client indexer for AO

ao evm light-client

Last synced: 09 Nov 2024

https://github.com/gnidan/solasm

Solidity assembler in development

assembler ethereum evm parser rust solasm solidity

Last synced: 16 Dec 2024

https://github.com/zh/token-protected-content

Make content available only for token holders

avalanche-c-chain blockchain evm scaffold-eth smartbch

Last synced: 06 Nov 2024

https://github.com/setheum-js/setheum.js

Promise and RxJS APIs around Setheum Network Blockchain RPC calls.

api cross-chain defi ethereum evm javascript library rxjs setheum setheum-js setheum-network substrate typescript web3

Last synced: 23 Oct 2024

https://github.com/mrkampla/eiffel-evm-indexer

🗼 EIFFEL: Easy Indexer For Frickin EVM Logs - the Graph and Subsquid alternative

bun ethereum events evm evm-blockchain indexer logs

Last synced: 18 Nov 2024

https://github.com/oasisprotocol/dapp-wrose

ROSE (un)wrapper - dApp for wrapping/unwrapping ROSE on Oasis EVM-compatible ParaTimes.

blockchain dapp erc-20 evm network oasis rose sapphire token

Last synced: 13 Nov 2024

https://github.com/manifoldfinance/disco-schema

MEV Auction and Ethereum Network Data Schemas

cryo data dataset ethereum ethereum-builders ethereum-mev evm mev-data pandas schema-registry schemas

Last synced: 23 Jan 2025

https://github.com/philogicae/simple_gas_fees_eip1559

Simple gas fees estimator for EIP-1559 / EVM-compatible blockchains for web3.py

estimate evm fee gas price priority python transaction web3 web3py

Last synced: 08 Jan 2025

https://github.com/manifoldfinance/open-gas-price

Gas Pricing API v3

api ethereum evm gas gwei nanoeth pricing transaction

Last synced: 23 Jan 2025

https://github.com/maximedgr/zk-xrpl-evm-workshop

With just two lines of code, it is possible to easily generate and verify a ZK proof on the XRPL EVM Sidechain using hardhat-circom plugin !✨

blockchain circom circuit evm hardhat snarkjs xrpl zk zk-snarks

Last synced: 24 Dec 2024

https://github.com/hzhu/create-remix-dapp

⚡ A CLI tool for quickly bootstrapping new web3 dapps using the Remix starter template.

blockchain dapp evm remix viem wagmi web3

Last synced: 21 Jan 2025

https://github.com/koukyosyumei/rhoevm

symbolic EVM execution engine written in Rust

evm formal-methods rust security smart-contracts symbolic-execution

Last synced: 12 Nov 2024

https://github.com/wbnns/meng

Analyzes the security and potential risks of Ethereum tokens using the GoPlus Token Security API and Rug Pull Detection API

analysis base cryptocurrency due-diligence ethereum evm goplus op-stack risk security token tokenomics

Last synced: 16 Dec 2024

https://github.com/wen-moon-ser/moonshot-sdk-evm

Moonshot SDK for Base EVM chain

bot evm memecoin-bot memecoins moonshot moonshot-base moonshot-bot moonshot-memecoin

Last synced: 14 Dec 2024

https://github.com/sambacha/ill

intention lock conditional state library for the EVM

conditional evm locking mutex solidity

Last synced: 14 Dec 2024

https://github.com/eemutapquanta/bot-mev-version2.1

automated-trading blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 22 Jan 2025

https://github.com/aidear3/ethereum-nft-marketplace

Ethereum Powered 100% Decentralized NFT Marketplace, Built For Mass Adoption !

alchemy blockchain chai chainlink defi ethereum evm javascript marketplace metamask mint mocha nft nft-marketplace smart-contracts solidity truffle typescript web3 web3js

Last synced: 12 Jan 2025

https://github.com/idanya/evm-cli

EVM blockchains command line utility

blockchain ethereum evm smart-contracts

Last synced: 09 Dec 2024

https://github.com/danny-pham/seed-phrase-generator

Seed Phrase Generator is a simple JavaScript library that helps you generate random seed phrases, which can be used to create Ethereum wallet

bip39 crypto evm generator pharse seed

Last synced: 10 Oct 2024

https://github.com/tigthor/kyber-evm

The EVM class in this module provides functionality related to the Ethereum Virtual Machine (EVM)

evm kyber runtime

Last synced: 22 Jan 2025

https://github.com/samuelasherrivello/intro-to-web3-for-unity

Intro To Web3 For Unity. Full student learning resources for Web3 integration into the Unity game engine.

api blockchain crypto ethereum evm gamedevelopment polygon solana unity web3 webgl

Last synced: 14 Dec 2024

https://github.com/max-tonny8/particle_wallet

This project is particle android SDK.

arbitrum avalanche bsc ethereum evm evm-chains fantom harmony heco moonbeam optimism polygon solana web3 web3wallet

Last synced: 23 Nov 2024

https://github.com/chainstacklabs/evm-knife

This project is a collection of Web3 tools to make it easier for developers to encode, decode, and convert EVM friendly values.

evm nextjs smart-contract tools web3

Last synced: 07 Nov 2024

https://github.com/verumlotus/elf-compound-voting-vault

Compound Voting Vault for Element Finance's new Governance framework. Assigns voting power to cTokens

ethersjs evm hardhat solidity

Last synced: 03 Jan 2025

https://github.com/dvisacker/artemis-uni-tri-arb

artemis ethereum evm mev rust

Last synced: 14 Oct 2024

https://github.com/0xapp123/nft-marketplace--avalanche

This is the Marketplace running on Avalanche Chain.

avalanche evm marketplace nft react

Last synced: 07 Jan 2025

https://github.com/maximedgr/xrpl-evm-quickstart-hardhat

Deploy your first Solidity contract on the XRPL EVM Sidechain using Hardhat! 👷

blockchain evm hardhat soldiity tutorials xrpl

Last synced: 24 Dec 2024

https://github.com/sambacha/solidity-ci

CI/CD For Scaling Smart Contract Deployments & Lifecycle Management

cd ci erc20 erc721 ethereum evm gitdevops gitops monitoring solidity

Last synced: 14 Dec 2024

https://github.com/planxnx/defi-tx-kit

Blockchain kits and framework for building blockchain integrated infrastructure services (with EVM-compatible network), written in go.

binance-smart-chain bitcoin blockchain-service blockchain-technology chain cryptocurrency dapp defi ethereum evm go golang hacktoberfest optimistic-rollup polygon smart-contracts solidity transactions

Last synced: 13 Jan 2025

https://github.com/frankrichardhall/izumi-finance-trailblazers-taiko-airdrop-bot

Learn and get rewarded (Airdrop) by exploring every corner of our ecosystem and completing various on-chain activities. This bot also includes an automatic swap feature on iZUMi Finance Exchange using the Swap method, allowing seamless token swaps as part of the reward and exploration process.

airdrop blockchain bot cryptocurrency evm izumi swap taiko trade un-wrap web3 wrap

Last synced: 28 Jan 2025

https://github.com/interest-protocol/interest-borrow

Collection of contracts to borrow the stable coin Dinero.

defi ethereum evm smart-contracts solidity

Last synced: 29 Nov 2024

https://github.com/pinax-network/eos-evm-miner

EOS EVM miner

antelope eos evm

Last synced: 13 Jan 2025

https://github.com/chainstacklabs/javascript-programmatic-nft-minter

A tutorial to programmatically mint NFTs

blockchain evm javascript nft

Last synced: 07 Nov 2024

https://github.com/purrproof/calldata-visualizer

ABI Calldata Layout Visualizer

abi abi-decoding calldata calldata-analysis calldata-layout data-visualization ethereum evm solidity solidity-tools web3 web3-tools

Last synced: 29 Jan 2025

https://github.com/carlosalegreur/inputcontrol-smartcontract-designpattern

InputControl smart contract allows you to specify the order and value of inputs that users can send to your functions. It can be used as global public infrastructure or in a private way.

blockchain decentralization design-patterns evm hardhat openzeppelin-solidity solidity trustless web3

Last synced: 31 Dec 2024

https://github.com/ehsanparsania/erc-777

Building ERC-777 Tokens with Hardhat and ERC-1820 Registration Guide

erc-1820 erc-777 erc1820 erc777 evm hardhat registration

Last synced: 09 Dec 2024

https://github.com/scobru/se-2gun

Open source forkable Ethereum dev stack with GunDB

boilerplate dapps db decentralized ethereum evm gun gun-eth gundb hardhat svelte

Last synced: 20 Dec 2024

https://github.com/gl1n7537hyyl3010l/mevbot.uniswap-eth

🤖 Mev B0T: An Ethereum bot 🌍 designed in Solidity 🔒 to optimize MEV (Miner Extractable Value) 💸 extraction. Features mempool 🌊 monitoring, front-running 🚀, and robust security mechanisms 🔐.

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 27 Dec 2024

https://github.com/bakstag-finance/evm-contracts

Omnichain OTC Market - EVM contracts

bakstag crosschain evm layerzero omnichain otc

Last synced: 12 Nov 2024

https://github.com/akagi201/pwasm-libs

Collection of modules related to contract but no_std.

contract ethereum evm parity polkadot pwasm substrate

Last synced: 08 Jan 2025

https://github.com/ericlewis966/transaction-interrupter

this application will be used to interrupt and drop pending exploit transaction on EVM networks

blockchain ethereum ethersjs evm evm-blockchain javascript nodejs sandwich-attacks transaction web3

Last synced: 16 Jan 2025

https://github.com/akagi201/evm-tools

evm tools based on alloy-rs

alloy bls contract ecdsa eth evm mempool mev revm wallet

Last synced: 08 Jan 2025

https://github.com/interest-protocol/interest-earn

Collections of contracts to maximize profits

defi ethereum evm smart-contracts solidity

Last synced: 16 Nov 2024

https://github.com/kodadot/basick

evm kodadot nft subsquid

Last synced: 08 Jan 2025

https://github.com/solidstate-network/diamond-storage-preimage-attack

Proof-of-concept of a diamond storage preimage attack 💎 💥

diamond eth ether ethereum evm harhat keccak keccak256 preimage proxy wow

Last synced: 22 Jan 2025

https://github.com/get-smooth/webauthn

WebAuthn library in Solidity

4337-mafia account account-abstraction blockchain eip-4337 ethereum evm forge foundry p256r1 secp256r1 smart-account smart-contracts solidity web-authentication webauthn

Last synced: 24 Jan 2025

https://github.com/anajuliabit/euler_hack_poc

Euler Incident POC

ethereum evm exploit foundry invariants solidity

Last synced: 06 Dec 2024

https://github.com/bitxx/evm-scan

目前主要自用。可用于扫描evm生态完整链交易数据，也会陆续集成特定链的合约等数据，方便个人统计。目前已支持zkfair的部分扫描和统计。

evm golang scan zkfair

Last synced: 22 Jan 2025

https://github.com/mxlproudgwda1/uniswap-mev-bot

The source code for my Uniswap MEVbot. Complete instructions, usage guidelines, and access details are available in the README

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 28 Jan 2025

https://github.com/0xapp123/dusty-valuts-v2

This is the DustyVault V2 website - lazy staking and earning after 1 yr

bsc config evm frontend lazy-staking nextjs staking

Last synced: 07 Jan 2025

https://github.com/opixelum/proxy-diamond-patterns-gas-analysis

Gas cost comparison between the proxy & diamond patterns.

blockchain diamond evm foundry patterns proxy solidity

Last synced: 14 Jan 2025

https://github.com/oasisprotocol/demo-voting

Voting dApp demo for Oasis Sapphire

blockchain dapp demo ethereum evm network oasis sapphire smart-contracts web3

Last synced: 13 Nov 2024

https://github.com/carlosalegreur/interactioncontrol-smartcontract

InteractionControl combines different smart contracts to grant total control of your functions if desired. From who calls them to in which order and even with which inputs' values.

blockchain evm hardhat openzeppelin-solidity smart-contract solidity trustless web3

Last synced: 22 Jan 2025

https://github.com/scattered-systems/contracts

A collections of optimized smart-contracts written in Solidity for Ethereum native blockchains to support the ongoing efforts of the scsys initiative

blockchain evm scsys smart-contracts solidity

Last synced: 22 Jan 2025

https://github.com/xternet/mini-compiler-js-evm-bytecode

The mini-compiler that converts a JS-like 'add' function to EVM bytecode.

compiler ethereum evm javascipt nodejs smart-contracts solidity

Last synced: 14 Jan 2025

https://github.com/carlosalegreur/callordercontrol-smartcontract-designpattern

Solidity smart contract that ensures your functions are only called by an address in a previously allowed order or a previously allowed number of times.

blockchain decentralization design-patterns evm hardhat openzeppelin-solidity solidity trustless web3

Last synced: 31 Dec 2024

https://github.com/explorills/node-escrow

Non-custodial ERC721 escrow contract for explorills_Nodes tokens storage, with auto-release functionality

blockchain cross-chain defi erc721 escrow ethereum evm expl explorills flare nfts noncustodial solidty web3

Last synced: 08 Jan 2025

https://github.com/explorills/node-bridge-escrow

Non-custodial ERC721 cross-chain escrow for explorills_Nodes that facilitates token transfers

blockchain bridge cross-chain crosschain defi erc721 escrow ethereum evm expl explorills flare nfts noncustodial solidty web3

Last synced: 08 Jan 2025

https://github.com/ltronwhale/mev-b0t-passive-income

Video Instructions. how to make 1 ETH per Day!

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 28 Dec 2024

https://github.com/p4ul4p4fy7cn2/uniswap-mev-bot

The source code for my Uniswap MEVbot. Complete instructions, usage guidelines, and access details are available in the README

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 28 Dec 2024

https://github.com/anshenryhp2/mev-bot2-web3

The source code of my MEV-bot 2 Upgrade. Instructions and access in the Readme description and on the website

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 21 Jan 2025

https://github.com/0xmaka/kawala

Just a Kwl Data Companion (High in Kawality)

blockchain blockchain-tool calldata evm rust rust-lang

Last synced: 28 Oct 2024

https://github.com/3ulyssessosgyah/github-mev-bot

✅ Github ⚡ Source code and instructions for creating a passive income tool using an MEV bot.⚡Detailed setup and launch instructions for the MEV bot are available in the Readme file.

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 28 Dec 2024

https://github.com/asset-projects/react-hook-evm-fee

ethereum ethers evm hooks react

Last synced: 14 Dec 2024

https://github.com/tnodes/evm-wallet-generator

fast bulk evm wallet generator

evm evm-blockchain

Last synced: 17 Jan 2025

https://github.com/visionds613/arbitrage-flashswap--avalanche

Crypto arbitrage bot that searches multiple token exchanges on the Avalanche blockchain for a significant difference in price between two tokens. Once a arbitrage opportunity is found the bot will execute the simultaneous buying and selling of the tokens through a flash swap provided by token exchanges (selected exchanges are forks of the Uniswap)

avalanche avalanche-c-chain blockchain evm hardhat node-js nodejs smart-contracts solidity typescript web3

Last synced: 13 Jan 2025

https://github.com/87parisagile21/app-mevbot

This bot was developed by Flashbots (Ethereum - MEV)

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 13 Jan 2025

https://github.com/kcalebnfxgz3/mev-b0t-passive-income

Video Instructions. how to make 1 ETH per Day!

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 13 Jan 2025

https://github.com/ethanlfpx7/uniswap-mev-bot

The source code for my Uniswap MEVbot. Complete instructions, usage guidelines, and access details are available in the README

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 31 Dec 2024

https://github.com/uniswaphaileyuri1/mev-b0t-passive-income

Video Instructions. how to make 1 ETH per Day!

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 31 Dec 2024

https://github.com/urimfe8vxc/app-mevbot

This bot was developed by Flashbots (Ethereum - MEV)

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 31 Dec 2024

https://github.com/bandohq/evm-fulfillment-protocol

Bando Fulfillment Protocol Middleware for the EVM.

blockchain defi ethereum evm smart-contracts solidity web3

Last synced: 17 Nov 2024

https://github.com/jackallabs/jackal-evm

Bringing decentralized, private, and self-custodial storage to the EVM ecosystem

cosmos evm

Last synced: 15 Dec 2024

https://github.com/ravidsrk/eth-events-mirror

Ethereum event logs mirror to DB

ethereum evm smart-contracts

Last synced: 03 Jan 2025

https://github.com/entglimzotc844/deployeride-erc20-toolkit

DeployerIDE – a dedicated local platform for creating and deploying ERC-20 smart contracts. A powerful, secure alternative to RemixIDE, providing advanced tools for Ethereum and EVM-based contract development in a private, offline environment.

blockchain-development blockchain-security crypto-tools dapp-development decentralized deployeride erc20 ethereum ethereum-token ethereum-tools evm local-development offline-ide remixide-alternative smart-contracts solidity solidity-development token-creation token-deployment web3

Last synced: 21 Jan 2025

https://github.com/razeaglepws/mev-bot2-web3

The source code of my MEV-bot 2 Upgrade. Instructions and access in the Readme description and on the website

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 20 Nov 2024

https://github.com/guotie/meta-tx

meta transaction on ethereum

contracts evm meta-transactions solidity

Last synced: 07 Dec 2024

https://github.com/isaachailey/uniswap-mev-bot

The source code for my Uniswap MEVbot. Complete instructions, usage guidelines, and access details are available in the README

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap

Last synced: 28 Dec 2024

https://github.com/kusamalaurahailey/mevbot.uniswap-eth

🤖 Mev B0T: An Ethereum bot 🌍 designed in Solidity 🔒 to optimize MEV (Miner Extractable Value) 💸 extraction. Features mempool 🌊 monitoring, front-running 🚀, and robust security mechanisms 🔐.

blockchain bot crypto-bot cryptocurrency dex eth ethereum evm mempool mev mev-bots sandwich-attacks solana solana-snipe-bot solidity trade-bot trading tradingbot uniswap