Across Protocol vs Mountain Protocol

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.

Mountain Protocol

Mountain Protocol is the issuer of USDM, a regulated, yield-bearing stablecoin backed by short-term US Treasury bills that automatically passes through Treasury yields to holders on a daily rebasing basis. Unlike traditional stablecoins that capture yield for issuers, USDM distributes approximately 4-5% APY directly to holders simply by holding the token—making it a compelling alternative to USDC and USDT in the HyperEVM ecosystem. As HyperEVM lending protocols and yield vaults integrate USDM as a base asset, Hyperliquid traders can earn real-world Treasury yields on their idle stablecoin balances between trades. Mountain Protocol operates under regulatory oversight and maintains full reserve attestations, providing institutional-grade compliance for DeFi protocols that need to satisfy regulatory requirements when deploying RWA-backed assets on Hyperliquid. USDM's daily rebasing model ensures yield accrues automatically without requiring any user action.

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 Mountain Protocol if you...

• ✓Want a rwa perps solution on Multi-Layer
• ✓Need: USDM yield-bearing stablecoin passing US Treasury yields to Hyperliquid holders