🎥 How to Send a Transaction Using Ethers.js

Learn how to send a transaction on Ethereum using Ethers.js v5 and v6.

🎥 What is Hardhat?

Learn about Hardhat and how to set up a local smart contract development environment.

🎥 Get Email Notifications for ENS Registrations via the QuickAlerts UI

Learn how to set up a QuickAlert for ENS Domain registrations and get notified via email with the help of Pipedream.

A Complete Guide to Airdropping Test SOL on Solana

This guide will give you a complete overview of the five ways to airdrop test SOL to your wallet (Solana CLI, Solana-Web3.js, QuickNode Multi-chain Faucet, and QuickNode's Airdrop Widget).

A Complete Guide to Wrapping, Transferring, and Unwrapping SOL on Solana

In this guide, you will learn how to wrap SOL, transfer wrapped SOL, and unwrap SOL using the Solana-Web3.js JavaScript library, the Solana CLI, and the Solana Rust SDK.

Como crear y lanzar un ERC-721 (NFT)

Esta guía cubrirá la parte de creación y lanzamiento de nuestro propio ERC-721 (NFT) usando una librería de smart contract 0xcert/ethereum-erc721

Create a Solana Trading Bot Using Jupiter API

In this guide, we will walk through how to use Jupiter's v6 API and QuickNode's Metis add-on to create a simple Solana trading bot.

Creating a Fungible Token with Solana Web3.js 2.0

This guide will teach you how to create a fungible token on the Solana blockchain using the Solana Web3.js 2.0 library.

Creating Fungible Tokens on the NEAR Protocol

This guide will cover the fundamentals of NEAR and teach you how to build and deploy a fungible token smart contract on the NEAR Testnet.

Five Ways to Check the Balance of a Solana SPL Token Account

This guide will give you a complete overview of the five ways to check the balance of a Solana SPL Token Account (Solana CLI, Solana-Web3.js, Solana Token Program, cURL, and Rust).

Five Ways to Find the Associated Token Address for a Solana Wallet and Mint

This guide will give you a complete overview of the five ways to check the address of a Solana SPL Token Account (Solana CLI, Solana-Web3.js, Solana Token Program, cURL, and Rust).

Four Ways to Check the Balance of a Solana Wallet Address

This guide will give you a complete overview of the four ways to check the balance of a Solana wallet (Solana CLI, Solana-Web3.js, and cURL).

How to access Ethereum Mempool

This guide will describe what the Ethereum Mempool is and demonstrate how to access and query it with QuickNode.

How to Add Solana Pay to Your Shopify Store

Add Solana Pay to Your Shopify Store

How to Airdrop Solana NFTs with Crossmint's Minting API

Create a simple script that will allow you to mint and deliver NFTs directly to a list of customers' wallets or email addresses.

How to Audit ERC20, ERC721, and ERC1155 Token Activity using QuickNode SDK

In this guide, users will learn how to audit wallet activities of token transfers using JavaScript and QuickNode SDK.

How to Build a Payment Portal with Solana Pay in Your Web App

Learn how to build an interactive dApp that integrates a payment system with Solana Pay into any web application. At the end of this guide, you will have created a payment portal where users can scan a Solana Pay QR code, process the transaction with a Phantom wallet on their phone, and verify payment success.

How to Build an ERC20 Token Balance App with QuickNode SDK

In this guide, you will learn how to build an ERC20 token balance app with the QuickNode SDK.

How to Build an ERC20 Token Balance App with QuickNode Token API

This guide will show you how to build an ERC20 token balance app with the QuickNode Token API.

How to Build an NFT Gallery using React and QuickNode's NFT API

In this guide, we will show you how to retrieve all the NFTs from a particular collection and demonstrate how to display them on our frontend using QuickNode's NFT API, React, Ethers.js, and TailwindCSS.

How to Burn SPL Tokens on Solana

In this guide, you will use TypeScript and the Solana SPL Token Program to burn SPL tokens held in your wallet.

How to connect to Ethereum network with Ethers.js

In this guide, we'll cover installing Ethers.js, use it to connect to a web3 provider, and get the latest block height.

How to connect to Ethereum network with Web3.js

In this guide, we will show you how to install Web3.js, establish a connection with a provider, and retrieve the most recent block number from the Ethereum blockchain.

How To Create A 10K NFT Collection on Arbitrum Nova

In this guide, we show you the steps needed to create your own 10,000 NFT Collection on Arbitrum Nova using Solidity, JavaScript, and a non-custodial wallet.

How to Create a Bitcoin Address using bitcoinjs-lib

This guide will teach you how to create a Bitcoin address using JavaScript and bitcoinjs-lib

How to Create a DAO on Solana using Realms

In this guide, we will explore how to create a Decentralized Autonomous Organization (DAO) on Solana using Realms.

How to Create a Fungible SPL Token on Solana with Metaplex

In this guide, we will learn how to create a fungible (SPL) token with metadata on Solana's Devnet using the new Metaplex Token Standard and Metaplex umi.

How to Create a MultiSig Wallet on Solana using Squads

In this guide, we will explore how to use Squads to create a MultiSig Wallet on Solana.

How to Create a Solana NFT Collection using Candy Machine V3 and TypeScript

In this guide, we will explore Metaplex's new JS SDK which brings the power of Candy Machine to your JavaScript and TypeScript applications to allow for quick and easy NFT minting.

How to Create a Solana NFT with the SPL Metadata Token Extension

This guide will explore how to create and add token metadata using the Solana Metadata Token Extension.

How to Create a Solana Program using Solidity and Solang

Learn the basics of Solang, how to create your first Solana program (or smart contract) using Solidity and Solang, and how to implement tests to ensure your program works as intended.

How to Create A Soulbound Token

In this guide, you will learn about Soulbound tokens and why they are useful. You will also learn how to deploy a Soulbound token contract on Sepolia using Hardhat.

How to Create a System Program PDA

In this guide, you will learn how to create a PDA owned by the System Program in your Anchor project.

How to Create a Token Allowance Checker App

In this guide, learn to create an ERC-20 token allowance checker app using QuickNode Streams and PostgreSQL.

How to Create a Uniswap Bot with Streams & Filters

In this guide, you will learn how to create a Uniswap trading bot using Streams to fetch real-time blockchain data and Filters to parse for specific Uniswap V3 swaps.

How to Create a Web3 Chrome Extension

In this guide, you will learn how to create a Web3 Chrome Extension that can fetch the Ether balance of an address.

How to Create an Address in Solana using JavaScript

This step-by-step guide will show you how to create a Solana address using the Solana-Web3.js library.

How to Create an NFT Marketplace on the Polygon Blockchain

This guide will teach you how to create and deploy an NFT marketplace smart contract on the Polygon Mumbai test network using Hardhat. You will also learn how to test and interact with your deployed marketplace contract using Ethers.js.

How to Create and Deploy a Factory ERC-1155 Contract on Polygon using Truffle

This guide will show you how to create and deploy a Factory ERC-1155 smart contract on Polygon using Truffle.

How to Create and Deploy an ERC-721 (NFT)

This guide will show you how to create and deploy an ERC-721 token.

How to Create and Host a Blog with IPFS using QuickNode

In this guide, you will learn how to create a blog website using HTML/CSS/JavaScript and then learn how to serve your website on IPFS using QuickNode.

How to Create and Mint Fungible SPL Tokens Using Anchor

In this guide, you will learn how to create and mint SPL tokens using Anchor.

How to Create and Use Solana Token Extensions Using Anchor

In this guide, you will learn how to utilize Solana Token Extensions using Anchor.

How to Create Custom Program Clients in Solana Web3.js 2.0 with Kinobi

This guide will teach you how to generate a custom program client in Solana Web3.js 2.0 using Kinobi.

How to Create Programmable NFTs on Solana

This guide explains Programmable NFTs (pNFTs) and walks through how to mint them using TypeScript.

How to Create Websocket Subscriptions to Solana Blockchain using Typescript

Solana has several built-in handy event listeners, also known as subscriptions, that make listening for changes on the Solana Blockchain a breeze. This guide will teach you how to use several Solana event listener methods and QuickNode WebSockets to listen for changes on the chain.

How to Deploy a Smart Contract on Arbitrum Nova

This guide will show you how to build, deploy and interact with a simple storage smart contract on Arbitrum Nova using well-known developer tools such as QuickNode and Hardhat.

How to Deploy a Smart Contract on Polygon

In this guide, we will learn more about the Polygon chain and how to deploy a smart contract on Polygon.

How to Deploy and Interact with Smart Contracts on TRON Using JavaScript

In this guide, you will learn how to deploy and interact with a smart contract using TronBox and TronWeb developers tools.

How to Deserialize Account Data on Solana

This guide will walk you through some basics of account structs and how to use struct schemas to deserialize Solana account data.

How to do a Non-Custodial Transaction with QuickNode

This guide will take a deep dive into understanding the difference between custodial and non-custodial wallets and how to make a non-custodial transaction using QuickNode.

How to Easily Add a Solana Token Swap to Your Webpage with Jupiter Terminal

In this guide, we will walk through how to use Jupiter Terminal, an end-to-end swap component, to add a Solana token swap feature to any webpage.

How to Enable Gzip on RPC calls in JavaScript using Ethers.js

In this guide, we will learn about gzip compression and how to enable gzip on RPC calls in JavaScript using the Ethers.js library.

How to Enable Token Privacy on Solana with Zero-Knowledge Proofs from Elusiv

This guide will teach you how to use Elusiv, a zero-knowledge (ZK) token privacy protocol on Solana. Elusiv enables developers to create tools that enable encrypted token accounts and transfers on Solana.

How to Filter Mempool Transactions on Ethereum

This guide will teach you how to retrieve and filter Mempool transactions on Ethereum using a WebSocket connection and JavaScript.

How to Fork and Deploy Solana Accounts & Programs from Mainnet to Localhost

This guide will walk you through forking accounts and programs from Mainnet to Localhost using Solana CLI.

How to Generate a New Bitcoin Address in JavaScript

This guide will teach you how to generate a new Bitcoin address in JavaScript using CryptoCoinJS.

How to Generate a New Ethereum Address in JavaScript

In this guide, we will cover creating an Ethereum address in JavaScript using Ethers.js.

How to Get All Tokens Held by a Wallet in Solana

This guide will walk you through creating a simple script that will query Solana's mainnet and return all of the Token Accounts owned by that wallet and their account balances.

How to Get Started using Metaplex's DAS API

In this guide, you will learn how to use the Digital Asset Standard (DAS) API to fetch NFT data from the Solana blockchain.

How to Get the Balance of an ERC-20 Token Using Web3.js

This guide will show you how to obtain a wallet's current balance of a particular ERC-20 token.

How to Get Transaction Logs on Solana

Ever need to pull all the transactions associated with a Wallet or want to see all of the mint transactions associated with a Candy Machine? In this guide, we'll cover Solana-Web3.js - a versatile tool that makes getting transaction history a breeze. 

How to Implement JSON Web Tokens (JWT) Authorization with QuickNode

JSON Web Tokens (JWT) are one way to protect web resources. This guide walks through the process of creating a React app that will fetch a JWT from our backend server (Express.js) and then use it to request and display the blockchain data on our front end.

How to Improve Solana Transaction Performance

In this guide, we will discuss ways you can improve your transaction efficiency and dapp performance by effectively sending transactions to the Solana Cluster.

How to Integrate Sign-in Authentication with a Solana Wallet

In this guide, we will use the Solana Wallet Adapter to authenticate users on your dApp!

How To Interact with Smart Contracts

In this guide, you will learn how to interact with smart contracts using blockchain explorers (i.e., Etherscan) and Web3 libraries (i.e., Ethers.js, Web3.js)

How to Interact with Uniswap using Javascript

This guide will walk you through how to interact with Uniswap smart contracts using a JavaScript library called ethers.js and Uniswap’s JavaScript SDK.

How to Launch an NFT Collection with Metaplex Core Candy Machine

In this guide, you will learn how to create and launch an NFT collection using Metaplex Core and the Candy Machine.

How to Listen For Newly Minted Tokens on PancakeSwap

This guide will walk you through how to make a bot that listens for and buys newly minted tokens on the PancakeSwap DEX using Ethers.js.

How to Manage WebSocket Connections With Your Ethereum Node Endpoint

In this guide, you will learn how to manage your WebSocket connection on your Ethereum node endpoint to properly handle downtime and disconnects.

How to Mint an NFT on Eclipse Using Nifty Asset Standard

In this guide, you will learn how to mint an NFT on Eclipse mainnet using the Nifty JavaScript client and the QuickNode IPFS Gateway.

How to Mint an NFT on Polygon with Ethers.js

In this guide, you'll learn how to mint an NFT on Polygon with Ethers.js and gain a fundamental understanding of how to interact with other smart contracts on the blockchain.

How to Mint an NFT on Solana

In this guide, we'll learn how to mint an NFT using Solana-Web3.js!

How to Mint an NFT on Solana using Typescript

Build a custom Solana NFT Minter using TypeScript and the Metaplex Umi SDK in this step-by-step guide.

How to Mint NFTs Using the ERC721A Implementation

This guide will teach you about the ERC721A implementation and how to deploy and mint NFTs from an ERC721A contract using Hardhat.

How to Program with Solidity on Solana - Solang vs Neon

Learn about Solang and Neon, two tools that allow you to write smart contracts in Solidity and deploy them to Solana.

How to Query Solana Naming Service Domains (.sol)

In this guide, you will discover how to query Solana domain names (.sol) using TypeScript and Bonfida's SPL Name Service SDK.

How to re-send a transaction with higher gas price using Ethers.js

In this guide, we'll go over all of the terminology and information around sending a transaction on Ethereum and re-sending the same transaction using Ethers.js on one of the Ethereum test networks.

How to Require Memos on Incoming Transfers Using Solana Token Extensions

This guide will explore Token Extensions, a exiting release with Solana's new Token-2022 Program. This guide will explore how to use token extensions to require memos on incoming token transfers to an account (like a traditional bank).

How to Resolve ENS Domains Using JavaScript and QuickNode

In this guide, we will learn more about ENS and How to resolve ENS domains using JavaScript library web3.js and QuickNode.

How to Run a Trade Butler Bot with QuickNode

This guide will give an overview of Trade Butler bots and walk you through how to run one locally with Ethereum.

How to Send a Transaction On Solana Using JavaScript

In this guide, we'll learn how to connect to Solana, obtain funds on its devnet, and send a transaction with this new and exciting technology.

How to Send an EIP-1559 Transaction

In this guide, we will learn how to send an EIP-1559 transaction using Ethers.js.

How to Send Bulk Transactions on Solana

Learn to perform bulk Solana transactions for batch processes (e.g., an airdrop to your community's NFT holders or a token distribution to early users of your dApp) in this step-by-step guide. Solana transaction composition and concurrent method calls can increase the speed and effectiveness of your script!

How to Send ERC-20 Tokens using the QuickNode SDK

This comprehensive guide covers the steps to send ERC-20 tokens on the Ethereum blockchain using the QuickNode SDK with JavaScript.

How to Send Offline Transactions on Solana using Durable Nonce

Sending offline transactions on Solana is easy. This guide will show you how to send offline transactions using durable nonces.

How to Send Transactions with Solana Web3.js 2.0

This guide will teach you how to send transactions with Solana Web3.js 2.0, a major update to their JavaScript library for interacting with the Solana blockchain. Specifically, we will airdrop SOL and transfer it between two accounts.

How to Set Up a NEAR Project from Scratch

In this guide, we will look at how we can setup a basic NEAR project from scratch, installing and configuring dependencies and customizing the project to work well with AssemblyScript.

How to Set Up and Interact with a Local Solana Validator

This guide will walk you through setting up a local Solana validator and how to interact with it including creating a wallet, performing basic transactions, and deploying a program.

How to Setup Local Development Environment for Solidity

This guide will show you how to create a local development environment for Solidity

How to Stake SOL on Solana (4 ways)

This guide will give you an overview of the four ways to stake SOL on Solana (Wallet, Solana CLI, Solana-Web3.js, Liquid Staking).

How to Stream Pending Transactions with Ethers.js

In this guide, we will learn how to stream pending transactions from Ethereum and similar chains with Ethers.js.

How to Swap Tokens on Uniswap V2 with Ethers.js

This guide will demonstrate how to swap tokens on Uniswap V2 using JavaScript and the Ethers.js library. The technical demonstration will include a code walk-through and an example of a token swap from ETH to DAI on Ethereum mainnet.

How to Track New Liquidity Pools Created on Solana Raydium DEX

In this guide, we will learn how to listen to the Solana blockchain for new liquidity pools created on the Raydium DEX using Solana WebSockets.

How to Transfer SOL and SPL Tokens Using Anchor

In this guide, you will learn how to transfer SOL and SPL tokens using Anchor.

How to Transfer SPL Tokens on Solana

Transferring SPL tokens is slightly different from sending SOL, so it is essential to understand how it works as you progress on your Solana development journey. In this guide, you will use TypeScript to write a script that transfers an SPL token from one account to another on Solana's devnet.

How to Update Solana NFT Metadata Using TypeScript

Updating metadata for NFTs you created is a handy tool any NFT developer should have in their toolbelt. Learn how to update the metadata of an NFT on Solana's devnet from your terminal using the Solana-Web3 library and Metaplex JS SDKs.

How to Update Your Solana Client to Handle Versioned Transactions

This guide will explain the technical changes as a result of Solana's Versioned Transactions launch and how to update your client-side code to handle those changes.

How to Use Chainlink VRF in Your Smart Contract

In this guide, we will teach you more about Chainlink VRF and how it works.

How to Use Clockwork to Automate Solana Programs

In this guide, we will explore what Clockwork is and how to use it to automate Solana programs.

How to Use Lookup Tables on Solana

Learn how to use Solana Lookup Tables in Versioned Transactions in this step-by-step guide.

How to Use Priority Fees on Solana

This guide provides an overview of Solana Priority Fees and a step-by-step tutorial on how to use priority fees to prioritize your Solana transactions and get them confirmed faster on the network.

How to Use Program Derived Addresses in Your Solana Anchor Program

In this guide, you will create a Solana Program using Anchor and Solana PlayGround. You will explore creating and utilizing Program Derived Address (PDA) in your work.

How to Use QuickNode Add-ons using Solana Web3.js 2.0 (Part 1)

This guide will teach you how to seamlessly integrate QuickNode's Marketplace Add-ons into your Solana Web3.js 2.0 application, .

How to Use QuickNode Add-ons using Solana Web3.js 2.0 (Part 2)

This guide will teach you how to integrate multiple QuickNode Add-ons, including REST APIs, into your Solana Web3.js 2.0 application.

How to Use Solana Pay with Custom Solana Programs

Implement a NextJS app that uses Solana Pay to invoke a custom Solana program.

How to use Solana Token Extensions to Collect Transfer Fees

This guide will explore how to collect Token Transfer Fees using Solana's Token Extensions Program (Token-2022).

How to use Subspace with QuickNode

In this guide, you will learn about reactive development and how to use Subspace with QuickNode.

How to Use the Solana Memo Program

In this guide, we will learn how to add notes to your transaction using the Solana Memo program.

How to Use Versioned Transactions on Solana

In this guide, we will walk through how to create and execute a Version 0 (V0) Transaction on Solana.

Integrate Your Svelte App with a Smart Contract

In this article, you will learn how to build a sample app in Svelte, and connect it to a smart contract that we deploy on the Sepolia Network.

Interacting with 0x API using JavaScript

This guide will demonstrate how to interact with the 0x API, specifically how to get the best price quote for a pair of tokens using Javascript.

Solana Feature Compatibility - How to Achieve Reliable Application Performance Across Clusters

Ensuring that your Solana application performs reliably across different clusters is essential for testing and deployment. This guide explains how to ensure your local testing validator matches the mainnet cluster's current feature set.

Solana Transaction Propagation - Handling Dropped Transactions

This guide will demonstrate how to create a tool that monitors a Solana transaction to verify that it has been successfully added to a block or expired.

The Diamond Standard (EIP-2535) Explained - Part 2

In this guide, you will learn how to create, deploy, and test an EIP-2535 compliant Diamond smart contract using the diamond-1-hardhat repository and louper.dev, which is a tool for inspecting diamond smart contracts on EVM-based chains.

The Web3 Developer Stack

In this guide, you will learn more about the web3 developer stack and the tech included.

What are Compressed NFTs and How to Mint one on Solana

In this guide, you will learn how to use Metaplex Umi and Digital Asset Standard (DAS) API to mint and fetch compressed NFTs on Solana.

What are Solana Inscriptions and How to Get Started

In this guide, you will learn about Metaplex Inscriptions on Solana, how to mint them, and how to fetch data from them.

What are Solana SPL Token Extensions and How to Get Started?

This guide will explore Solana's new Token-2022 Program which introduces Token Extensions for advanced functionality of SPL tokens.

What is a Cross Program Invocation (CPI) on Solana?

In this guide, you will learn what Cross Program Invocations (CPIs) are and how to use them in Solana programming.

What is an IDL?

In this guide, you learn what IDLs are and how to use them in Solana programming.

What is Eclipse and How to Get Started on Testnet?

In this guide, we will learn about Eclipse, Ethereum's first Layer 2 that is built with the Solana Virtual Machine (SVM) and how to get started on the testnet.

What Is Ethereum Attestation Service (EAS) & How to Use It

This guide offers a concise overview of the Ethereum Attestation Service (EAS) and shows you how to create and verify attestations yourself.

What is Metaplex Core and How to Mint Your First Core NFT

In this guide, you will learn about Metaplex Core, a new lightweight NFT standard on Solana. You will mint your first NFT using Metaplex Core and the Umi JavaScript library.

What is Nifty Asset Standard and How to Mint Your First Nifty Asset?

In this guide, you will learn how to create a digital Asset using the Nifty JavaScript client.

What is Rent on Solana and How to Calculate it

This guide will explain how rent works on the Solana blockchain and how to calculate rent requirements for your accounts.

What is Solana Pay and How to Use It

Learn how to use Solana Pay to send and receive SOL and SPL tokens for Payments.