PancakeSwap sniper bot

Purpose

This bot helps you to compete with other trading bots or traders when buying a cryptocurrency on the PancakeSwap DEX. The bot can be used for fairlaunch ( stealthlaunch ) projects or if you just want to buy as fast as possible on PancakeSwap trading pair creation. If a project is hype and the community which is willing to buy the particular token is quite big, then it is close to impossible to compete manually with bots or traders. PancakeSwap, PooCoin, etc are known to have slow UX which will only make your buying transaction slower and in the end you might buy at not desired price. For long time bots have been integral part of trading not only for the cryptocurrencies, but also for stocks, fiat currencies, etc.

Grateful users & support

This sniper bot is fully free and it was never meant to be paid. However if you appreciate my work I accept BNB or ETH donations at 0x5ADD71300d924213456b037b5be25020C62D9e08. The real rockstars will follow my twitter as well:

Features

Operating with PancakeSwap: Router v2
Has the option to work with both BSC mainnet and testnet
Including all kind of transaction options like gas price, gas limit, transaction slippage, transaction deadline, etc
Has the option to fire multiple transactions at once
Supporting milliseconds
Free

Requirements

npm 6.0.0 or above
NodeJS 10.0.0 or above
pm2

Installation

Clone this repository ( or download from Code -> Download ZIP ) and run npm install inside the project folder. This command will download all the needed libraries which the bot needs to work properly.

Usage

You can run the script using node or pm2 commands. I personally like to use the pm2 command on my server, because PM2 is a process manager which takes care for my script to run 24/7.

Required parameters:

tokenAddress - this is the contract address of the token you're willing to buy. String, 42 bytes size starting with 0x.
buyingBnbAmount - this is the amount of BNB which you are willing to use to execute the buying transaction. Integer or float.
senderPrivateKey - this is the private key of the wallet address which will be used to execute the buying transaction. String, 66 bytes size starting with 0x. If you're using MetaMask then you will have to manually add 0x at the beginning of your private key, because MetaMask is displaying the private key with 64 bytes size.

Optional parameters:

node - by default the bot will be using a standard BSC node. This node will be enough for signing transactions, but however if you want be fast as possible in presales you should find your self a fast node ( usually they're not free ). When you're able to provide a node better than the standard one you can pass it as node parameter. The node has to be full URI to the RPC endpoint, example: https://localhost:8545.
gasLimit - the maximum amount of gas you are willing to consume on a transaction, default value is 500000. ( This value may not be sufficient in some cases, because some projects require more gasLimit in order for the tokens to be transferred. )
gasPrice - the transaction gas price in Gwei, default value is 10 Gwei.
transactionIterations - how many times you want the transaction to be executed. Some fairlaunch projects have smart contract conditions to not buy big amounts of tokens for single transaction, so in the case that you want to buy bigger amount and to bypass the contract condition you can execute many transactions buying same amount. Setting transactionIterations to 3 will execute 3 different buying transactions with the same transaction parameters. Default value is 1.
transactionSlippage - the difference ( in percents ) between the expected price of a trade and the executed price of that trade. Default value is 15 percents, integer.
transactionDeadline - your transaction will revert if it is pending for more than this long. Default value is 1200 seconds, integer.
bscNetwork - accepts only mainnet and testnet values. Defines to which network should the bot submit blockchain transactions. Default value is testnet.
createLogs - boolean, if set to true it will create ./logs folder and save logs on different bot actions.
cronTime - how often should the bot try to buy the particular token. Default is */100 * * * * * * aka every 100 milliseconds.
botInitialDelay - by default when starting the bot for first time it has 10 seconds delay to double check what parameters have been passed. Setting this parameter to 0 will remove the delay if needed.
explorerApiKey - this parameter is the API key generated by https://bscscan.com/apis. By passing this parameter the bot will only execute the buy transactions only if the contract is publicly verified on the blockchain explorer. The bot need this API key in order to make the request to the explorer API. Warning - for your own safety do not buy tokens with not verified smart contracts. It's very possible that this is a malicious contract.

Sample terminal command:

Using node - node pancakeswap-sniper-bot.js -- tokenAddress=0xc9849e6fdb743d08faee3e34dd2d1bc69ea11a51 buyingBnbAmount=1.05 senderPrivateKey=0x8da4ef21b864d2cc526dbdb2a120bd2874c36c9d0a1fb7f8c63d7f7a8b41de8f createLogs=true gasPrice=25 transactionSlippage=30 bscNetwork=mainnet
Using pm2 - pm2 start pancakeswap-sniper-bot.js -- tokenAddress=0xc9849e6fdb743d08faee3e34dd2d1bc69ea11a51 buyingBnbAmount=1.05 senderPrivateKey=0x8da4ef21b864d2cc526dbdb2a120bd2874c36c9d0a1fb7f8c63d7f7a8b41de8f createLogs=true gasPrice=25 transactionSlippage=30 bscNetwork=mainnet

If you wish to use the bot at same time for multiple crypto tokens you could make several pm2 instances by passing --name parameter to the pm2 command. Example: --name "app name".

JinJieTan / pancakeswap-sniper-bot