Across Protocol vs Privy

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.

Privy

Privy is an embedded wallet and authentication infrastructure provider that enables HyperEVM developers to offer seamless, non-custodial wallet creation to users via email, phone, or social accounts. Unlike traditional wallet connect flows that require users to have MetaMask installed, Privy provisions in-app wallets using secure key management—allowing users to interact with HyperEVM DeFi protocols without any prior crypto experience. Privy's React SDK integrates in minutes and handles all key storage, recovery, and session management, while developers retain full control over the user experience. For NFT platforms, trading terminals, and DeFi frontends on HyperEVM, Privy dramatically lowers the onboarding barrier and increases conversion rates. Its cross-app wallets feature allows users to carry their Privy wallet identity across multiple HyperEVM applications with a single sign-on, creating a cohesive multi-app experience within the Hyperliquid ecosystem.

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 Privy if you...

• ✓Want a wallets & account abstraction solution on Multi-Layer
• ✓Need: Embedded wallets enabling users to access HyperEVM dApps with just email or social login