Explains one Base mainnet transaction in plain JSON. JSON body: hash (0x + 64 hex). Returns status, block time, from/to, method name for common selectors, fees (L2, L1 data fee, total in ETH), decoded ERC-20 and NFT transfers with symbols, approvals (unlimited flagged), swap events, WETH wrap/unwrap and the sender's net token changes. First 400 logs decoded. Base only; body max 4 KB. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.