Relay is a cross-chain payments system that enables instant, low-cost bridging and cross-chain execution. It works by connecting users with relayers - financial agents that act on users’ behalfs across chains in exchange for a small fee. Relay is designed to minimize gas costs and execution latency, making it ideal for price-sensitive applications, such as payments, bridging, nft minting and gas abstraction. Relay was previously known as Reservoir, a token and NFT trading infrastructure.

Multiliquid is a cross-chain protocol that allows users to exchange blue-chip RWAs and stablecoins at scale across multiple chains, and it aims to make on-chain liquidity easy.

Portal is the custody-less interoperability protocol for Bitcoin. Portal enables fast, low cost atomic swaps between native Bitcoin assets like BTC, Ordinals, and Runes, to L2s and other L1s. With Portal’s technical breakthroughs, there is no bridging or wrapping.

Axelar is a decentralized cross-chain communication network, aiming to level-up interoperability in Web3 by connecting heterogeneous blockchains and enabling asset mobility and program composability in an optimized way for both builders and end-users. The two layers of Axelar are the network and the API above it. At the core of Axelar is a permissionless overlay network that provides Turing-complete cross-chain communication through proof-of-stake and permissionless protocols. On top of the network are APIs and protocols, an application-development layer that developers use to compose across any number of chains. Once integrated, all new interconnected blockchains become interoperable with the application, resulting in limitless network effects.

Wormhole is a decentralized, universal message-passing protocol that enables developers and users of cross chain applications to leverage the advantages of multiple ecosystems.

Owlto Finance is a decentralized cross-rollup bridge focused on Layer2, providing a low-cost, secure, and fast asset transfer solution.

Synapse is a universal interoperability protocol that enables secure cross-chain communication. It connects blockchains by providing an extensible cross-chain messaging protocol that supports assets, smart contract calls, and more. With Synapse, blockchains can securely and easily interoperate with one another, and developers can create truly cross-chain applications, including cross-chain DEXs, lending platforms, margining systems, derivatives markets, yield aggregators, and much more.

Orbiter Finance is a decentralized cross-rollup bridge for transferring Ethereum native assets, providing the infrastructure for Layer 2.In Orbiter Finance, there are two roles they are Sender and Maker. When the Sender initiates a transfer, the Maker provides liquidity for it. The smart contract ensures the security of this process. If the Maker does bad behaviors and the transfer fails, the Sender can initiate an arbitration request to the contract with Maker’s margin and then get the excess compensation.

Stargate is a fully composable liquidity transport protocol that lies at the core of Omnichain DeFi. With Stargate, users and dApps can transfer native assets cross-chain while accessing the protocol's unified liquidity pools with instant, guaranteed finality.

Rango is a cross-chain DEX aggregator that combines the power of DEX aggregators within blockchains with multiple bridges and cross-chain liquidity providers, giving users access to improved liquidity.

Across is an optimistic cross-chain bridge protocol that enables users to execute transactions between chains almost instantly. This is achieved through the use of an optimistic oracle, bonded relayers, and single-sided liquidity pools.

SWFT Blockchain is a next-generation one-stop cross-chain swap protocol and payment network that offers a mobile wallet with both custodial and non-custodial (decentralized) storage options as well as non-fungible tokens (NFTs) as well as other interesting features like lending and SWFT Pay.

LI.FI is a bridge aggregation protocol with DEX connectivity and cross-chain data messaging capabilities. All of these functions will be made available on an API/Contract level, and as a widget for other developers to plug directly into their products.

Celer is a blockchain interoperability protocol that provides a one-click user experience for accessing tokens, DeFi, GameFi, NFTs, governance, and more across multiple chains. Developers can use the Celer Inter-chain Message SDK to build inter-chain-native dApps, enabling efficient liquidity utilization, coherent application logic, and shared states.

Confidential Layer is a decentralized crosschain bridge solution that bridging assets between programmable blockchains like EVM, Solana, and Cosmos, as well as non-programmable blockchains like Bitcoin and privacy-focused blockchains.

Brotocol was born to unify the Bitcoin space and connect it with the wider blockchain world. The project is set to link Bitcoin DeFi to liquidity on Ethereum and other ecosystems, providing access to various chains including BRC20, while also being a key piece of the infrastructure needed to have a "native-like” Bitcoin DeFi experience on L1 for BTC holders.

Sunrise is a liquidity gateway focused on the Solana ecosystem, providing users with a single interface to transfer tokens from its source chain to Solana and instantly access the network's DeFi venues. The project was launched by Wormhole Labs.

Comet is an interlink communication protocol between all Bitcoin and Ethereum Ecosystems, designed to provide safe, fast, reliable, and cheap cryptocurrency transfers.

Echo is a multifaceted protocol specializing in bridging, restaking, and decentralized finance (DeFi), seamlessly interoperating within the Move ecosystem. Its mission is to enhance BTC liquidity and introduce innovative restaking solutions for BTC assets within Move.

Poly Network is a global, cross-chain protocol that implements blockchain interoperability and builds Web3.0 infrastructure. It has integrated over 20 blockchains, including Ethereum, Polygon, Avalanche, Fantom, OKC, Neo, Ontology, Zilliqa, and Elrond. Since its launch, the protocol has enabled cross-chain asset transfers totaling more than $16 billion USD.

Beyond is a native Bitcoin L1 interoperability protocol, providing the necessary infrastructure for users to securely bridge any token to, from, and within Bitcoin L1.

Nomad is an optimistic interoperability protocol that enables secure cross-chain communication. The goal of Nomad is to provide the connective tissue to empower end-users to interact securely across blockchains and developers to build cross-chain applications (or xApps) such as token bridges, native cross-chain assets, cross-chain governance applications, and more.

MultiBit Bridge offers a secure and efficient bridging mechanism to allow for seamless transfers of tokens between the ETH chain, BNB chain, and BTC network. Bridging ERC20 tokens with BRC20 tokens, the MultiBit Bridge enhances the liquidity of BRC20 tokens and promotes the growth and development of the Bitcoin ecosystem.

Router Protocol is a cross-chain messaging protocol that uses a mesh network architecture to facilitate communication between different chains. Router offers a suite of products, including its main application, Voyager, a flexible widget, and an SDK called CrossTalk.

Mass is a one-stop DeFi application that provides cross-chain bridge, DEX aggregation, data statistics and more.

ChainEye is an open-source, full-chain analysis tool. It currently has features such as BridgeEye (cross-chain bridge comparison tool), On-chain&CEX transfer fee (on-chain & CEX transfer fee query), Multichain Gas (multi-chain gas fee query), and more. In the future, it will develop new features such as security modules and NFT modules. ChainEye promises to provide users with free data services forever and will return the income generated from the tool to the community and users. ChainEye is incubated by Biteye.

Meme Bridge is a cross-chain bridge solution designed to seamlessly transfer memes and other digital assets across different blockchain networks.

BoringDAO is a DAO-driven cross-chain service provider for every crypto asset. It provides everyone with a cost-efficient experience for pegged token wrapping and asset transfers.

DapDap is the next-generation Decentralized Finance (DeFi) consumer application layer for Ether L2 and EVM, providing users with a single interface to instantly access more than 300 decentralized applications (dApps) across more than 17 networks.

Unit is the asset tokenization layer on Hyperliquid, enabling seamless deposits and withdrawals for a variety of assets. Through its first integration, Unit supports the free flow of mainstream crypto assets like BTC, ETH, and SOL between Hyperliquid and their native blockchains.