Stacks
Stacks makes Bitcoin programmable, enabling decentralized apps and smart contracts that inherit all of Bitcoin’s powers. Build apps and smart contracts on Bitcoin. Stacks connects to Bitcoin, enabling you to build apps, smart contracts, and digital assets that are integrated with Bitcoin's security, capital, and network. Lock your STX temporarily to support the network’s security and consensus. As a reward, you’ll earn Bitcoin that miners transfer as part of Proof of Transfer. Stacks makes Bitcoin's $760B of capital programmable with smart contracts. Build a better financial system on top of Bitcoin that’s open, composable, and without intermediaries. Run your app’s logic on the blockchain with Clarity smart contracts. Clarity is a more secure and predictable language that prevents many bugs and exploits. Perfect for high-stakes code where bugs are not an option.
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Hemi
Hemi is a breakthrough modular Layer-2 blockchain protocol that seamlessly merges Bitcoin’s rock-solid security with Ethereum’s versatile programmability by embedding a full Bitcoin node into an Ethereum-compatible EVM, known as the Hemi Virtual Machine (hVM). This architecture allows developers to write Solidity smart contracts that natively access Bitcoin data without relying on bridges or synthetic assets. Using its proprietary Proof-of-Proof (PoP) consensus, Hemi achieves “superfinality,” anchoring transactions in Bitcoin blocks for high integrity and resistance to reorgs, all while maintaining fast finality. Its Hemi Bitcoin Kit (hBK) gives developers the tools to build truly Bitcoin-powered DeFi applications, such as lending, staking, automated market makers, MEV systems, and multi-chain DAOs, using real BTC as collateral or yield sources.
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Syscoin
An open source community dedicated to scaling Bitcoin, especially its proof-of-work security, to meet global needs and emerging use cases, while sticking as close as possible to Bitcoin's original ideals. Syscoin's evolution across ten years of main net and the foresight reflected in its design means the project has a head-start providing a comprehensive network and protocol for projects aiming to achieve Bitcoin L2. Syscoin is a mainnet Bitcoin L2 that provides a data availability protocol that scales, making EVM and AltVM rollups on Bitcoin a reality. Merge-mined by a majority of Bitcoin's hash rate, Syscoin anchors rollups to Bitcoin's own proof-of-work and works with rollups’ existing sequencer architectures. Syscoin provides Bitcoin with a scalable data availability layer which is necessary for rollups (and other EVM or AltVM layers) to tap into Bitcoin's network in a safe and scalable way.
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Liquality
Explore Bitcoin, Ethereum, Rootstock, NEAR, and Polygon dapps and merchants today. Trusted by 11,000+. Over $35M in cross-chain atomic swaps. The first multi-chain browser extension wallet. Send, receive, atomic swap, and use dapps across Bitcoin, Ethereum, Rootstock, NEAR, and Polygon ecosystems while maintaining full control of your assets. Atomic swap cryptocurrency across blockchains without having to trust a custodian or counterparty. Swap directly from your Liquality, MetaMask, or Ledger wallet securely, privately, and cost-effectively. Liquality developer tools enable blockchain devs, dapps, and merchants to increase their network effects, serve new audiences, and automate transaction workflows. Prompt the Liquality Wallet and automate transaction workflows for smoother user experiences. Prompt customers’ Liquality wallets to offer a frictionless checkout experience. Onboard users form other blockchains with cross-chain functionality.
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