What problem does it solve? Checking blockchain data normally requires juggling multiple block explorers, APIs, and paid API keys for each network. This Skill provides a single read-only CLI client that queries wallet portfolios, token metadata, transactions, gas prices, and security risks across 8 EVM chains using only the Python standard library. ## Core Features & Use Cases - Wallet & Portfolio Queries: Fetch native balances and known ERC-20 token holdings with USD pricing, or scan the same address across all 8 chains at once with the multichain command. - Security & Inspection Tools: Detect dangerous unlimited token approvals, inspect smart contracts for proxy patterns and ERC standards, and decode transaction input data via 4byte.directory. - Network Analytics: Track gas prices with USD cost estimates per operation, compare fees across all chains, detect whale transfers, and resolve ENS names in both directions. - Use Case: Before bridging funds, run the compare command to see gas costs and native token prices across Ethereum, Base, Arbitrum, Polygon, Optimism, BSC, Avalanche, and zkSync, then pick the cheapest chain for your transaction. ## Quick Start Ask the agent to check the wallet portfolio of 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 across all EVM chains.