ENS Resolver — Name ↔ Address + Avatar

ENS name resolution API for AI agents. Resolve ENS names (vitalik.eth) to Ethereum addresses and reverse-resolve addresses to ENS names. Includes avatar URLs and text records. Tools: crypto_resolve_ens. Use this for displaying human-readable names, identity verification, or building wallet UIs. The identity layer every crypto agent needs. IMPORTANT: For wallet balance lookup, use wallet_get_portfolio instead. Returns: {address, name, avatar, records}. No API key required — x402 micropayment $0.002/call on Base L2.