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.
Moonriver is an Ethereum-compatible smart contract parachain on Kusama, designed for developers to deploy Solidity smart contracts with minimal changes.

Polycat Finance is a decentralized finance (DeFi) yield farming platform on the Fantom network.

Cubik is a decentralized grant funding platform designed to facilitate transparent and community-driven funding processes.

Ronin is an Ethereum Virtual Machine (EVM) sidechain optimized for gaming and player-owned economies.
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AI-driven software to detect and automate trading on potential cryptocurrency pump and dump events.

Arrington Capital is a thesis-driven venture capital firm investing in digital assets and Web3 since 2017.

Bor is the official Golang implementation of the Polygon Proof-of-Stake blockchain, providing an EVM-compatible client forked from geth.

Distributed computing platform providing on-demand GPU clusters and intelligent infrastructure optimized for AI workloads with significant cost savings.

Minds is a decentralized social network platform focused on privacy, free speech, and user empowerment.

A comprehensive platform enabling game developers to integrate blockchain-powered secondary economies and true ownership of in-game assets.

Steem is a social blockchain that enables communities to grow and rewards users with cryptocurrency for sharing content.

A decentralized social network protocol enabling permissionless social apps and identity.

Canto is a permissionless, EVM-compatible Layer 1 blockchain designed to deliver decentralized finance (DeFi) through free public infrastructure.

Erigon is an efficient, modular Ethereum client designed for speed, optimized resource usage, and flexible deployment as full or archive nodes.
A decentralized data exchange protocol enabling secure data sharing, monetization, and AI model deployment with privacy preservation.
Anchored is a Web3 developer tool focused on providing decentralized finance infrastructure and tooling.

DeepBook is an open-source decentralized limit order book and trading protocol built on the Sui blockchain.

Star Atlas is a blockchain-based space exploration and strategy game featuring a player-driven economy and multi-perspective gameplay.
Arweave is a decentralized, permanent data storage network that incentivizes nodes to store data indefinitely using a novel proof of access consensus.

Smart Contract Engineer, Auditor, and Educator with extensive open-source contributions and educational content.
Autonomys Network is a scalable, secure blockchain platform enabling developers to build AI-powered decentralized applications and autonomous on-chain agents with permanent data storage.
Ultron is a Layer 1 blockchain network providing a testnet environment with RPC access, native currency, and explorer tools for developers.

Tres Finance provides a Web3 financial data lake designed to aggregate and analyze blockchain financial data.

A Ruby library to build, sign, and broadcast Ethereum transactions with full smart contract support.

TaxBit is a platform providing cryptocurrency tax calculation and reporting solutions for individuals and businesses.

Autofarm is a decentralized yield optimizer that automates yield farming strategies across multiple DeFi protocols.
Aurora is an Ethereum-compatible network built on NEAR Protocol offering scalable, low-cost Virtual Chains for decentralized applications.

Nifty Gateway is a digital art platform and NFT marketplace that partners with leading creators to deliver blockchain-backed creative experiences.

Helium enables anyone to build and own decentralized wireless networks powered by community-operated Hotspots.
An interactive tutorial platform offering hands-on Ethereum Solidity challenges to build real-world smart contracts and decentralized applications.

An integration of the Solhint Solidity linter into the Atom editor for Solidity code quality checks.

Deeper Network is a decentralized VPN service leveraging a global network of nodes to provide secure, private, and censorship-resistant internet access.

An open source payment organizer that consolidates multiple payment methods and social links into a customizable page.

Sequence is a modular crypto infrastructure stack that unifies wallets, 1-click cross-chain payments, and real-time data layers across EVM chains.

NodeGo AI is a decentralized infrastructure platform that enables users to contribute and rent computing resources for AI and blockchain applications.

A lightweight, composable, and type-safe TypeScript interface for building reliable Ethereum apps and libraries.

Hyperliquid is a high-performance Layer 1 blockchain and decentralized exchange optimized for permissionless perpetual futures trading with sub-second finality.

Ember Entertainment appears to be a domain currently for sale with no active web3 developer tools or services available.

A global startup accelerator program by Techstars focused on supporting early-stage Web3 companies.
A crypto startup accelerator offering seed funding, media exposure, mentorship, and marketing support to early-stage Web3 projects.
Soar is a general cognitive architecture for building systems that exhibit intelligent behavior.
Solana Faucet by Alchemy provides developers with free test SOL tokens to facilitate development and testing on the Solana blockchain.
Aptos Unity SDK is a C# library for building Web3 applications and games on the Aptos blockchain using the Unity engine.

Morph is an Ethereum Layer 2 blockchain leveraging advanced rollup technology to improve scalability and user experience.
A Unity-compatible SDK providing full Solana blockchain integration for game developers with wallet, token, NFT, and DEX support.

A non-custodial service by Lightning Labs for moving bitcoin on and off the Lightning Network using submarine swaps.

Zcash is a privacy-focused cryptocurrency that uses zero-knowledge proofs to enable encrypted peer-to-peer payments.
Palm Network is a proof-of-stake Layer 1 blockchain focused on sustainable and scalable Web3 development with comprehensive developer tools and resources.
CoinTracking is a comprehensive crypto portfolio tracker and tax calculator supporting over 300 exchanges and blockchains.