Interchain Connectivity Companies

Rosen Bridge is an open-source cross-chain asset transfer protocol built around Ergo as a central hub, enabling bridging between blockchains including Cardano, Bitcoin, and Ethereum. Its architecture uses two layers of participants: Watchers, who monitor origin chains and report bridge events on Ergo, and Guards, a federated multisignature group who process and execute transfers. Security is reinforced through collateral requirements in the native RSN token and ERG, cold storage mechanisms, and a Proof of Event incentive scheme that rewards honest participation and penalizes fraud. The protocol is designed to minimize smart contract exposure on bridged chains, supporting modular integration of new networks via independent chain-specific modules. RSN serves as the utility token underpinning collateral, staking, and reward distribution across the system.

RuneMine, operating as MineLabs, is a cross-chain bridge protocol designed for Bitcoin's Runes token standard. The protocol enables bi-directional transfer of Runes assets between Bitcoin, Solana, NEAR, EVM chains, and Bitcoin Layer 2 solutions. MineBridge, the platform's core product, functions as a multi-chain bridge specifically architected for the Runes protocol. The system has undergone security audits by Halborn and Sherlock. The platform integrates with multiple wallet implementations including UniSat, Xverse, Magic Eden, Phantom, and Leather. It maintains integrations with ecosystem partners including OKX, Proximity Labs, Botanix, and DotSwap. The protocol includes a native token, MINE, which supports staking functionality.

AggLayer is a cross-chain settlement layer developed under the Polygon ecosystem that unifies liquidity and users across multiple blockchains through a decentralized aggregation protocol. It enables fast, low-cost interoperability by batching transactions and providing shared total value locked (TVL) across connected chains, removing the need for siloed liquidity per network. The protocol supports any blockchain stack and virtual machine, making it accessible to developers building cross-chain applications regardless of their underlying infrastructure. AggLayer offers products including CDK Enterprise for chain deployment, Vault Bridge for asset transfers, and a developer portal with documentation and tooling for builders integrating cross-chain functionality.

Allbridge is a cross-chain bridge protocol that provides tools for transferring assets between different blockchain networks. Its offerings include Allbridge Core, which facilitates stablecoin swaps between EVM and non-EVM blockchains using liquidity pools, and Allbridge Classic, which supports a broader range of token transfers, including both native and wrapped assets. The protocol is designed to enable interoperability across multiple chains and offers infrastructure for integrating cross-chain functionality into other applications. It also provides developer resources, including an SDK and documentation, to support third-party integrations.

Blocknet is an open-source, decentralized protocol that enables communication and asset exchange between separate blockchain networks. Its architecture comprises two primary components: XBridge, which facilitates cross-chain atomic swaps for peer-to-peer trading without intermediaries, and XRouter, a communication layer enabling decentralized applications to query multiple blockchains concurrently. The protocol targets developers building applications requiring cross-chain data or asset transfers and functions as infrastructure rather than a consumer application. The network uses a native token, BLOCK, for service node collateral and fee payments.

Boltz is a non-custodial bridge protocol that facilitates atomic swaps between Bitcoin layers, including the Lightning Network, Liquid Network, Rootstock, and on-chain Bitcoin, as well as stablecoins such as USDT. Swaps are executed as atomic transactions, meaning cryptographic mechanisms ensure that fund transfers occur with certainty and users retain control throughout the exchange process without counterparty custody risk. The protocol operates through a public API that has been integrated by multiple wallet and service providers. The infrastructure includes a Lightning node network with multiple peer connections and allocated channel capacity. The system is designed to enable value transfer across Bitcoin layers without requiring centralized intermediaries.

Confidential Layer operates a decentralized, non-custodial bridge protocol that facilitates asset transfers between public blockchains and privacy-focused blockchains. The system employs Threshold Signature Scheme technology combined with proprietary Confidential Assets technology to generate confidential token representations. This architecture eliminates the requirement for liquidity pools and enables transfers of variable amounts without predetermined limits. The platform comprises three primary components: the bridge mechanism for cross-chain asset movement, a multi-chain wallet application for managing assets across both public and privacy-chain networks, and a developer API enabling third-party decentralized applications to integrate privacy functionality. The protocol is designed for users and developers seeking to obscure on-chain activity, wallet balances, and transaction history from public blockchain records. The project includes a native token designated as CLONE.

CrossCurve is a decentralized finance protocol that provides cross-chain liquidity routing and interoperability infrastructure across 30+ blockchain networks, including Ethereum, Avalanche, Base, Arbitrum, BNB Chain, and Sonic. The core component is a MetaLayer API that aggregates multiple bridging and messaging protocols, including LayerZero, Axelar, and Router Protocol, to enable gasless cross-chain token execution and automated on-chain operations across EVM-compatible and non-EVM networks. The platform includes a native decentralized exchange built on Curve Finance infrastructure, a Consensus Bridge for asset transfers, and a Token Bridge. CrossCurve is operated by EYWA Development Inc. and is designed to provide developers and protocols with a unified integration point for accessing cross-chain liquidity and executing token swaps across supported networks.

Defuse Labs develops NEAR Intents, a cross-chain transaction framework for blockchain networks. The system enables asset movement and interactions across multiple blockchains including Bitcoin, Solana, Zcash, and Cardano through an intent-driven liquidity layer. The architecture allows AI agents, smart contracts, and decentralized services to execute cross-chain transactions without requiring manual bridging or managing fragmented liquidity pools. The framework is designed to support both autonomous agents and user-facing applications such as wallets and DeFi interfaces. The system includes SDK development and solver infrastructure components. Integration examples include partnerships with applications such as Brave browser.

Epoch Protocol is a solver coordination and intent abstraction layer for cross-chain interactions. The system enables users to express desired outcomes as intents, which are routed through a solver coordination layer and settled on-chain. The protocol abstracts gas management, protocol integrations, and network complexity. A modular SDK and APIs allow developers to integrate cross-chain execution without requiring manual per-protocol or per-network configuration. The architecture supports composable solver and observer modules. The protocol is designed for DApp developers and protocols that need to unify liquidity and execution across multiple blockchain networks. A testnet environment is provided for development and testing purposes.

Garden is a non-custodial cross-chain bridge protocol that facilitates swaps of Bitcoin and Bitcoin-wrapped assets across multiple blockchain networks, including Ethereum, Solana, Arbitrum, Base, BNB Chain, Starknet, Tron, Citrea, Botanix, and HyperEVM. The protocol supports native BTC, WBTC, cbBTC, USDT, USDC, and Litecoin. Its architecture employs atomic-swap-style cross-chain settlement mechanisms rather than traditional lock-and-mint custodial models, functioning as a liquidity layer for Bitcoin across decentralized finance ecosystems.

Gravity Bridge is a decentralized, open-source blockchain bridge that connects Ethereum and Cosmos ecosystems. It operates as a standalone Cosmos-based chain and enables bidirectional transfer of ERC-20 tokens and Cosmos-native assets. The bridge uses Inter-Blockchain Communication (IBC) protocol, allowing other Cosmos projects to access Ethereum assets such as DAI and USDC without operating independent bridge infrastructure. Cosmos assets like ATOM can be represented as ERC-20 tokens on Ethereum, enabling compatibility with Ethereum DeFi protocols including Uniswap. The system is governed by a validator set and includes an auction module for decentralized token distribution. The project maintains open-source code on GitHub and serves both end users and Cosmos ecosystem developers requiring cross-chain liquidity and asset interoperability.

Heima is a cross-chain trading infrastructure platform that provides a unified account interface for users and developers to interact across multiple blockchains. The core offering, Omni Accounts, uses Trusted Execution Environments (TEE) and Secure Multi-Party Computation (SMPC) to secure user assets without reliance on centralized servers. The platform provides modular SDKs and APIs that enable DEX developers to integrate cross-chain liquidity aggregation, optimized trade routing, and real-time token data across multiple chains. Heima serves DEX operators on Solana and EVM-compatible chains, multi-chain decentralized application developers, and centralized exchanges integrating decentralized trading functionality. The platform also offers a Bitcoin quantitative trading strategy product that incorporates artificial intelligence. Heima operates with a native token designated HEI.

Keep Network is a blockchain infrastructure protocol that enables private data processing within public smart contracts through off-chain containers called keeps. The protocol's primary application is tBTC, a decentralized bridge mechanism that allows Bitcoin to be transferred to and used on the Ethereum blockchain without requiring centralized custodial intermediaries. Keep Network merged with NuCypher to form Threshold Network, which operates under a combined protocol structure and issues the T token while maintaining tBTC as its core product. The architecture uses keeps as computational units that process sensitive data off-chain before results are submitted to on-chain smart contracts, preserving privacy while enabling interoperability between Bitcoin and Ethereum-based decentralized finance applications.

Mayan is a cross-chain bridge and swap protocol built on Solana that facilitates asset transfers across multiple blockchains. The system uses an auction-based mechanism in which solvers compete to fulfill user transfer orders, with the goal of optimizing rates and settlement time. The protocol operates on an intent-based bridging model where users submit transfer requests and competing solvers bid to execute them. The architecture is non-custodial, meaning users retain control of assets throughout the transfer process. The protocol has completed third-party security audits. Integration points include aggregator platforms that route transactions through the protocol.

Orbit Chain is a cross-chain blockchain project built around its Orbit Bridge, which enables asset and data transfers across multiple heterogeneous blockchain networks. The protocol operates its own chain with a governance token (ORC) that holders use for on-chain voting, staking, and delegation to shape protocol decisions. Orbit Bridge supports connections to networks including XRP and a range of EVM and non-EVM chains, with a validator set drawn from partner organizations.

Pontis is a cross-chain bridge focused on the Bitcoin ecosystem, enabling the transfer of Bitcoin-native assets including Runes and Ordinals between the Bitcoin network and Stacks (STX) or EVM-compatible chains. The protocol uses a decentralized multi-signature security model with 15 trusted nodes requiring a 9-of-15 consensus threshold, eliminating single points of failure in the bridging process. Its vault-based architecture receives incoming BTC transactions, bundles them, collects multi-party signatures, and then executes transfers to or from STX and EVM bridge contracts. The platform is designed for DeFi users and developers operating within the Bitcoin ecosystem, and its node operators and partners include projects such as Asigna, Bitflow, Hermetica, Leather, Liquidium, StackingDAO, Xverse, and Zest Protocol.

Portal Bridge is a cross-chain asset bridge that facilitates token transfers across more than 30 blockchain networks. The system supports transfers of USDC, ETH, SOL, and other tokens. Portal Bridge is built on the Wormhole messaging protocol and uses Wormhole's cross-chain infrastructure to execute token transfers and USDC bridging operations. The bridge provides a non-custodial swap interface, allowing users to move assets between chains without relying on a centralized intermediary to hold funds. Documentation and support resources are integrated within the Wormhole ecosystem, reflecting the close architectural relationship between Portal Bridge and the underlying Wormhole protocol rather than operating as an independent system.

Rainbow Bridge is a cross-chain bridge protocol enabling token transfers between Ethereum, NEAR Protocol, and Aurora (an EVM-compatible layer built on NEAR). Users connect wallets such as MetaMask, Rabby, Brave, or Coinbase Wallet to initiate transfers, with the app providing a transfer history scanner and address-routing options. The protocol is closely associated with Aurora, NEAR's EVM environment, and serves retail users moving assets across these three networks. The site includes explicit security warnings about wallet compatibility with the Aurora network, reflecting a focus on user-safety transparency.

Stargate Finance is a cross-chain liquidity bridge protocol that facilitates asset transfers across multiple blockchain networks within a single transaction. The protocol supports transfers of assets including USDC, USDT, ETH, and BTC. It is built on LayerZero's messaging infrastructure and employs a unified liquidity pool model to address liquidity fragmentation issues present in traditional bridge architectures. The protocol offers both standard and advanced transfer modes and includes staking functionality for its native STG token. Users can execute cross-chain asset movements without token wrapping or multiple sequential bridge operations.

Sunrise DeFi is an asset gateway protocol on the Solana blockchain that facilitates the transfer and listing of tokens from external networks and ecosystems onto Solana for trading and integration within its DeFi environment. The platform supports wrapped assets from other chains (WETH, WBTC, AVAX), Solana-native tokens, and cross-chain tokens including ENA, TAO, HYPE, and SUI. Users can deposit and withdraw assets through the platform interface. The core function is to serve as a bridging and listing layer that enables DeFi users and protocols to access a broader range of tokens on Solana, operating as a token onboarding and distribution mechanism rather than as a decentralized exchange or lending protocol.

Umbria Network is a cross-chain decentralized finance protocol that facilitates the transfer of fungible tokens between blockchain networks, including Ethereum, Polygon, and Binance Smart Chain. The Narni bridge, its primary component, operates using a liquidity pool model in which liquidity providers deposit assets to enable cross-chain transfers. Liquidity providers earn fees from these transactions. The protocol includes a decentralized exchange and MetaMask network connection utilities. Umbria issues a native token, UMBR, which is supported across its bridge routes. The system is designed to provide users with cross-chain token transfers at reduced costs compared to alternative bridge solutions.

Wagyu is a cross-chain bridge and swap protocol designed to facilitate asset transfers between blockchains while maintaining transaction privacy. The system comprises several components: a swap interface, a bridge mechanism, an exchange function, a points program, and a public API supporting both end-user and developer integration. The protocol implements access restrictions for users in the United States and the United Arab Emirates, reflecting a compliance framework based on jurisdictional considerations. The protocol has been associated with providing gas funds in connection with the THORChain incident, indicating potential limitations in transaction screening mechanisms.

WheelX.Fi is a multi-chain bridge and swap aggregator designed for EVM-compatible networks. The protocol provides a non-custodial interface that enables token transfers and exchanges across multiple blockchain networks through cross-chain routing mechanisms. Core components include a liquidity deployment tool for protocol participants, a rewards program for user incentives, and an affiliate system for partner compensation. The system offers integration options through an API, software development kit, and embeddable widget to enable third-party applications to access its functionality. The protocol has undergone security auditing by ABDK. WheelX.Fi has established a partnership with Morpho Network to provide cross-chain functionality within Morpho's decentralized finance lending protocol.