Relay

You'd reach for this when you need Claude to handle cross-chain operations without writing custom bridge integrations. It taps into Relay Protocol to fetch quotes for moving assets between chains, estimate fees before transactions, and track swap status. Useful if you're building wallets, portfolio tools, or any interface where users need to bridge tokens and you want Claude to handle the quote comparison and execution flow. The MCP exposes the core Relay API operations as tools, so you can ask Claude to find the cheapest route from Ethereum to Arbitrum or check if a pending bridge transaction has settled.