Janction is a Layer2 network that provides verifiable, collaborative, and scalable AI services. Janction uses smart contracts to automate and activate machine learning and artificial intelligence. Key elements such as AI models, GPU computing power, data feeds, and data markup are all integrated into Janction for collaborative processing.

Akave is a L2 storage chain, ​enabling on-chain data lakes for ​scalable and decentralized AI.

Polygon is a decentralized Ethereum scaling platform that enables developers to build user-friendly, scalable dApps with low transaction fees without compromising security.

Katana is a chain designed for DeFi with deep liquidity and high yields. This is achieved with a unique approach to maximizing yield that can be used as incentives on the core applications, including from VaultBridge, sequencer fees, and Agora USD revenue. Incubated by Polygon Labs and GSR, Katana is deployed with the support of Conduit and is a graduate of the Agglayer Breakout Program.

Arbitrum, created by the Offchain Labs team, is an Ethereum Layer2 scaling solution based on Optimistic Rollup technology. It leverages the ability to communicate between L1 and L2, allowing any form of Ethereum asset to be transferred between Layer 1 and Layer 2 without the need for trust. Even though Arbitrum transactions are still settled on Ethereum, only raw transaction data is submitted to Ethereum, with execution and contract storage occurring off-chain. This makes the gas fee required on Arbitrum much smaller than on the mainnet, and contracts are fully compatible with no gas limit.

Optimism is an Ethereum Layer 2 solution that utilizes optimistic rollup technology. It drastically reduces costs and transaction times while preserving the benefits of Ethereum's security.

Fractal Bitcoin is a Bitcoin scaling solution that gradually extends the Bitcoin blockchain into a scalable computing system without breaking consistency with the Bitcoin main chain.

zkSync is a Layer-2 scaling solution that preserves the security properties of the underlying blockchain by leveraging the latest generation of succinct zero-knowledge proofs. All funds in zkSync are held in a smart contract on the mainchain, while computation and storage are performed off-chain. For each Rollup block, a state transition zero-knowledge proof (SNARK) is generated and verified by the mainchain contract. This SNARK includes the proof of the validity of every transaction in the Rollup block.

StarkNet is a permissionless, decentralized Validity-Rollup (also known as a "ZK-Rollup"). It operates as an L2 network over Ethereum, enabling any dApp to achieve unlimited scalability for its computations without compromising Ethereum's composability and security. This is possible due to StarkNet's reliance on the safest and most scalable cryptographic proof system: STARK.

Fluent is a Layer2 rollup that lets user build scalable applications in your favorite programming languages - Rust, TypeScript, Solidity and more.

Base is a secure, cost-effective, and developer-friendly Ethereum Layer 2 built to bring the next billion users to web3. Base is incubated by Coinbase and plans to gradually decentralize in the coming years.

Mantle is a high-performance Ethereum layer-2 network built with a modular architecture that delivers low fees and high security. Builders can use Mantle's unique design to create dApps with an exceptional user experience, while also relying on Ethereum's unparalleled security. Mantle is a product of BitDAO and is governed by the $BIT community.

Linea is a layer2 Zero Knowledge Ethereum Virtual Machine (zkEVM). It replicates the Ethereum environment as a rollup, allowing developers to build on it as they would on Ethereum mainnet. This provides users with the same experience and security guarantees of Ethereum, but with reduced transaction costs.

ink is an Ethereum Layer2 blockchain that was launched by cryptocurrency exchange Kraken. As a single, integrated ecosystem, Ink simplifies user interaction with top DeFi applications (DApps), protocols, and communities. Leveraging aggregation, automation and abstraction, Ink’s user experience makes getting onchain as simple and easy as possible.

Citrea is a Bitcoin’s ZK rollup and an execution layer that settles on Bitcoin. Every transaction occurring on Citrea is fully secured by zero-knowledge proofs and verified by Bitcoin through BitVM.

Immutable X operates as the first-ever Layer 2 scaling solution for NFTs on the Ethereum blockchain. It utilizes zk rollup technology to address high gas fee and scalability issues when minting and trading NFTs.

Scroll is a zkEVM-based zkRollup on Ethereum that enables native compatibility for existing Ethereum applications and tools. It processes transactions off-chain and posts succinct proofs of correctness on-chain, resulting in higher throughput and lower costs compared to the Ethereum base layer.

Rayls is the EVM-compatible blockchain ecosystem that provides enterprise-grade privacy, scalability, interoperability, and decentralization simultaneously. It enables financial institutions to tokenise financial and real-world assets (RWA), adopt central bank digital currency (CBDC) payments, streamline cross-border FX and intra-institution payments. Rayls' hybrid architecture combines private subnets for banks with a public chain for DeFi. Financial institutions install Rayls Nodes on-premises, connecting to a central hub for private transactions. These same nodes connect to the public chain, enabling regulated asset issuance with global distribution.

Fhenix is the confidential blockchain powered by fully homomorphic encryption. Through the usage of fhEVM, Fhenix enables Ethereum developers to seamlessly build encrypted smart contracts and perform encrypted computation of data, all while using Solidity and other familiar, easy-to-use tools.

Epic Chain is an Ethereum Layer 2 solution built specifically for global entertainment brands. Global brands and talent will be able to use Epic Chain's technology to store their IP on-chain and engage with fans through next-generation content and experiences.

Bitroot is a Layer 2 scaling solution for Bitcoin as the programmable asset issuance protocol enables issuance of fungible Tokens and NFTs on the Bitcoin Chain and with the implementation of OP_CAT and BitrootVM it enhances the capabilities of smart contracts, making possible that users and developers can create and manage their own digital assets on Bitcoin's infrastructure keeping the high decentralization and security, enabling broader asset representation, expansion and operability.

SOON is a rollup stack designed to provide top performance for all Layer 1 blockchains.SOON's vision is to enable a Super Application Stack (SAS).The SAS consists of four core products: SOON Mainnet, SOON Stack, InterSOON, and Simpfor.fun.These components work in tandem to provide a high-performance, interoperable, and scalable solution. These components work together to provide high-performance, interoperable and scalable solutions. In addition, the integration of LiveTrade and simpfor.fun further strengthens SOON's vision of creating a super gateway for Web2 users through a live platform. This strategic expansion ensures that users experience seamless on-chain interactions directly in familiar environments such as Twitch and SOOP.

Bitlayer is a Bitcoin Layer 2 ecosystem project leading the way to the ground-up implementation of BitVM. By merging security with a lightning-fast smart contract engine, Bitlayer unlocks the full potential of Bitcoin DeFi. Bitlayer is committed to an open and collaborative Bitcoin DeFi ecosystem, working with partners to advance BTC Bridge, Bitcoin Layer 2 and BitVM stack, driving the future of secure, scalable, and programmable Bitcoin finance.

Intmax is a novel zkRollup as an Ethereum Layer 2 network for all kinds of web services and finance. IntMax will enable Ethereum to empower all online citizens to participate in the economy through payment infrastructure, as well as internet-native ownership with NFTs and community-governed tokens.

Haust Network is an Application Absolute Liquidity Network and will be built for compatibility with the Ethereum Virtual Machine (EVM). Haust to deliver native yield to all user’s assets. Within the Haust Wallet in Telegram after launching mainnet users can spend and earn on their crypto in one easy place, all at the same time. Haust Network will earn yield by leveraging its network of auto-balancing smart contracts that interact across multiple blockchains then effectively channelling their generated yield back to its users.

OP NET is a metaprotocol operating outside the Ordinals envelope that is designed to integrate seamlessly with Bitcoin while introducing a comprehensive suite of smart contract capabilities, At its core, OP NET functions to transform the programmability of the Bitcoin blockchain into the programmability of smart blockchains like Ethereum. Utilizing Tapscript, OP NET creates a fully expressive smart contract environment that operates within Bitcoin's existing framework. This approach retains Bitcoin's role as the foundational layer for data availability, consensus, and settlement, enhancing its functionality without compromising its core principles and without the need for BlPs/core protocol changes.

Saakuru is a consumer-centric L2 Protocol with Zero Transaction Fees developed using OP Stack and utilizing the delegate model to eliminate gas fees for users to create a frictionless experience for any applications building on top of Saakuru and enhanced with Saakuru Developer Suite that enables embedding complex digital products to Web3 in 1 day. The powerful and developer-friendly product suite centered around the Saakuru blockchain allows cost-efficient and seamless connectivity from Web2 to Web3.

Solaxy is a Layer2 solution that expands the massive Ethereum ecosystem, while enhancing the strength of Solana.

Sophon is an entertainment-focused ecosystem built as a modular rollup leveraging zkSync’s ZK Stack technology. As a ZK chain leveraging the ZK Stack, Sophon is intended to be tailored for any high throughput applications such as artificial intelligence and gaming.

BOB（Build On Bitcoin） is an EVM rollup stack with native Bitcoin support. Build decentralized apps on top of Ordinals, Lightning, Nostr.