Across Protocol vs OpenZeppelin

Across Protocol

Across Protocol is the leading intent-based cross-chain bridge, connecting over 15 chains — including Hyperliquid's HyperCore and HyperEVM — with near-instant settlement and some of the lowest fees in DeFi. Unlike traditional message-passing bridges, Across replaces step-by-step execution with user-declared outcomes called intents: users specify what they want, and a competitive network of relayers races to fulfill each transfer optimally. Backed by a three-layer architecture — a request-for-quote mechanism, a network of competitive relayers, and an on-chain settlement layer — Across guarantees fast fills averaging under one minute without sacrificing security or decentralization. Bridging 1 ETH costs under $1. The protocol has processed over $22B in cumulative volume across 15M+ transactions, making it one of the most proven interoperability solutions in production. For the Hyperliquid ecosystem, Across unlocks seamless capital inflows from Ethereum, Arbitrum, Base, Optimism, and beyond — giving users and protocols a reliable, low-cost on-ramp to both HyperCore's order-book liquidity and HyperEVM's growing DeFi landscape.

OpenZeppelin

OpenZeppelin is the gold standard for smart contract security, providing audited contract libraries, security tooling, and professional audit services for projects building on HyperEVM and other EVM chains. The OpenZeppelin Contracts library—used by thousands of protocols worldwide—provides secure, gas-optimized implementations of ERC token standards, access control patterns, and DeFi primitives that HyperEVM developers rely on as foundational building blocks. OpenZeppelin Defender provides automated security operations including contract monitoring, automated incident response, and upgrade management through time locks and multi-sig governance. For protocols in the Hyperliquid ecosystem handling significant user funds, engaging OpenZeppelin for security audits provides the highest level of third-party validation, with OpenZeppelin's researchers having an unmatched track record in identifying vulnerabilities before they become exploits. Their open-source contract library has been the foundation of countless secure DeFi protocols.

Choose Across Protocol if you...

• ✓Want a bridges & cross-chain solution on Multi-Layer
• ✓Prefer a verified and vetted protocol
• ✓Need features like bridge and intent-based
• ✓Need: Intent-based cross-chain bridge — near-instant USDC bridging to Hyperliquid

Choose OpenZeppelin if you...

• ✓Want a security & audits solution on Multi-Layer
• ✓Need: Gold standard smart contract security library and audit services for HyperEVM