B3
B3 is a comprehensive Web3 monorepo offering blockchain infrastructure, authentication, cross-chain operations, and gaming SDKs built with React and TypeScript.
Overview
B3 is an integrated monorepo designed to streamline Web3 development by providing a unified set of tools for blockchain infrastructure, authentication, cross-chain token operations, and gaming applications. It is built with modern web technologies including React 18/19, TypeScript, and Vite, and leverages pnpm workspaces for efficient package management and development workflows. The platform supports both React Web and React Native environments, making it versatile for building Web3 apps across devices.
The core of B3 is its SDK (@b3dotfun/sdk), which offers modules like AnySpend for cross-chain swaps and NFT minting, and Global Account for user authentication and session management. Developers can integrate B3’s authentication flows, permission management, and NFT utilities into their apps with React hooks and headless services. B3 also provides demo applications such as NFT-based memory games and NFT battle games that showcase real-world use of NFTs in gaming contexts.
What sets B3 apart is its all-in-one approach combining authentication, cross-chain capabilities, and gaming demos within a single monorepo. This reduces integration complexity and accelerates development cycles. The SDK’s full TypeScript support and React Native compatibility further enhance developer experience. Getting started involves installing dependencies with pnpm, running development servers for apps or SDK, and using provided React components for authentication and NFT operations. Comprehensive documentation and an explorer are available to assist onboarding and troubleshooting.
The Problem
Web3 developers face fragmented tooling for authentication, cross-chain token operations, and NFT integration, which complicates building seamless user experiences. Additionally, integrating blockchain features into gaming apps requires specialized SDKs that support real-time interactions and NFT utilities.
The Solution
Key Features
Global Account Authentication
User authentication with session keys, permission management, and wallet integration.
Interactive Gaming Demos
NFT-based memory game and NFT battle game demonstrating blockchain integration in gaming.
Modular SDK Packages
Separate SDK modules for authentication, cross-chain operations, and shared utilities.
Key Strengths
How Developers Use B3
Integrate Web3 Authentication in Dapps
Developers use B3’s Global Account SDK to add wallet-based sign-in, permission controls, and session management to decentralized applications.
Build Cross-Chain NFT Minting Features
Use the AnySpend module to enable users to mint NFTs and perform token swaps across multiple blockchains seamlessly.
Create Blockchain-Enabled Games
Leverage B3’s gaming demos and SDK to build interactive games that utilize NFTs as in-game assets with real-time mechanics.
Works Well WithEthereumBaseOptimism
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Network APIs
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Pricing
Open Source | |
|---|---|
| Price (Monthly) | Free |
| Price (Annual) | Free |
| Messaging | N/A |
| Support | Community support via GitHub |
| Analytics |
Resources
B3 provides extensive resources including official documentation, an explorer, and a GitHub repository with detailed SDK usage examples and demo applications to help developers get started quickly.