This guide is a primer for first time builders and a roadmap for seasoned veterans. It outlines the most common use cases and the critical tools used to build your solution.
Building Web3 solutions involves creating decentralized and interoperable protocols that form the foundation for the next generation of the internet, enabling trustless transactions and decentralized applications. Below are the most common use cases.

Ethernow provides real-time and historical Ethereum mempool transaction data and block composition metrics.

Mercuryo is a fiat-to-crypto onramp service enabling users to buy cryptocurrencies with traditional payment methods.

Alliance is a game development, publishing, and distribution company supporting digital and physical video games.

GMGN.AI is a trading platform and bot ecosystem focused on fast, automated MEME token trading and smart money tracking on-chain.

An open-source bot that forwards TradingView alerts via webhooks to Telegram, Discord, Slack, Twitter, and Email.
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A cross-platform Roblox executor for running Lua scripts with advanced safety and user-friendly design on PC and mobile.

Big Time is a free-to-play multiplayer action RPG that blends fast-paced combat with a player-driven Web3 economy and a customizable personal metaverse.

CoinStats is a comprehensive crypto portfolio tracker and market data platform supporting over 20,000 coins, 300 wallets/exchanges, and 120 blockchains.

An open-source peer-to-peer digital currency inspired by a Shiba Inu meme and built on blockchain technology.

Hamster-Kombat is a 2D action fighting game featuring crypto-integrated hamster battles with mining and tap-to-earn mechanics.

Luna is a modular Discord bot designed to assist with server moderation and community management.

Sentinel P2P is a layer-one blockchain powering a decentralized peer-to-peer bandwidth marketplace for dVPNs and decentralized AI data acquisition.
DOS Network is a decentralized oracle and infrastructure platform providing secure, scalable off-chain data and computation services for smart contracts.

GitHub is a platform for hosting, discovering, and collaborating on software projects, including many blockchain and block explorer tools.
Etherscan is a leading blockchain explorer, API, and analytics platform for Ethereum and EVM-compatible chains.

A modular framework for building customizable, interoperable zero-knowledge powered blockchains sharing users and liquidity.

A JavaScript library providing a comprehensive API to interact with Ethereum and EVM-compatible blockchains.

Mdex is a decentralized exchange platform built with modern web technologies for trading digital assets.

VeChainThor is a sustainable, fast, scalable, and secure Layer 1 blockchain with EVM compatibility designed for real-world enterprise applications.

Ape Framework is a modular, Python-based Web3 development tool for compiling, testing, and interacting with smart contracts across multiple languages and chains.

BONKbot is a Telegram-based trading bot offering advanced order automation, real-time analytics, and secure non-custodial execution.

Orderbook is a general term for decentralized or on-chain order book implementations used in trading and exchange protocols.
A multichain DeFi yield ecosystem offering liquid staking and stablecoin yield products on Ethereum.

Tachyon is a decentralized VPN protocol designed to enhance privacy and security for internet users.

Bisq is an open-source, decentralized peer-to-peer desktop application for buying and selling Bitcoin for fiat currencies or alternative cryptocurrencies without intermediaries.

An ERC-4337 compliant smart contract wallet supporting multiple owners, passkey and Ethereum address owners, with cross-chain replayability.

Securitize enables private businesses to raise capital from investors by tokenizing alternative investments and providing liquidity solutions.

Lethean is a decentralized VPN solution focused on secure, scalable, and easy-to-use privacy protection.

Cortex is an AI-powered internal developer portal that helps engineering teams improve productivity, reliability, and security by automating best practices and providing actionable insights.

Kuki AI is an award-winning AI character and virtual companion designed to engage users and serve as a virtual brand ambassador.

Merlin Chain is an EVM-compatible Layer 2 blockchain built on Bitcoin, leveraging ZK-Rollup technology to enable scalable, low-fee transactions and native Bitcoin protocol support.
A platform for hosting, discovering, and collaborating on software projects including blockchain data and web3 tools.

BasicSwap DEX is an open-source decentralized exchange enabling secure, non-custodial cross-chain atomic swaps with no fees.

Overhyped is a Web3 developer tool platform providing software solutions for blockchain projects.
Flare is a full-stack layer 1 blockchain designed for data-intensive use cases with EVM compatibility and integrated data protocols.

Manus is an autonomous AI agent platform that operates computers, browses the web, and completes complex tasks with minimal human intervention.
An open-source SDK that enables dapps to connect seamlessly to Coinbase Wallet across multiple platforms.

GameShift is a platform focused on building software tools for Web3 gaming and marketplaces.

Jito Network is a web3 infrastructure project focused on building tools and services for blockchain performance and optimization.

Paradigm is a research-driven crypto investment firm that also develops open source tools and infrastructure to advance blockchain technology.

Meteora is a dynamic liquidity protocol and toolkit designed to build and manage advanced liquidity pools and launchpads on Solana.

D-Chain is an infrastructure tool providing blockchain-related development resources and code repositories.
An open-source modular development stack for building and deploying production-ready Layer 2 blockchains secured by Ethereum.

A protocol enabling tokenized autonomous AI agents to transact and collaborate onchain through a permissionless, composable economic layer.

An interactive Solidity tutorial platform that teaches blockchain development by building a crypto-collectibles game.

Decentralized GPU marketplace providing affordable, scalable AI inference compute power.

TechAlchemy provides blockchain development services and tools for building and integrating decentralized applications.
Lift Dollar (USDL) is a US dollar-backed stablecoin with regulatory oversight that distributes yield from its cash and cash equivalent reserves to holders daily.

An IntelliJ IDE plugin providing Solidity language support with syntax highlighting, code completion, and testing integration.

Coinbase Ventures is the investment arm of Coinbase that backs early-stage crypto and Web3 startups advancing economic freedom.
Beacon Accelerator is a Web3 developer tool designed to streamline blockchain application development with modular and scalable components.

Light.js is a web3 developer tool designed to assist developers in building decentralized applications.