{"name":"crypto-tx-explainer","description":"Explain what actually happened in an on-chain transaction on Ethereum, Base, Arbitrum, Optimism, or Polygon by sending its tx_hash. It pulls the receipt and logs from public RPC providers and decodes status, native value moved, gas fee paid, ERC-20 and ERC-721 transfers, and which contracts got touched, labeling known ones like Uniswap routers, USDC, USDT, DAI, and WETH. Set explain: true and it also generates a plain-English summary of who sent what to whom, powered by Morpheus with a Venice fallback. Use it as a blockchain transaction explainer, crypto tx decoder, or on-chain forensics API for debugging agent transactions, building tx-history dashboards, or answering \"what did I just sign\".","price":"$0.04","method":"POST","input_schema":{"properties":{"tx_hash":{"type":"string","description":"Transaction hash, 0x + 64 hex chars."},"chain":{"type":"string","enum":["ethereum","base","arbitrum","optimism","polygon"],"description":"'ethereum', 'base' (default), 'arbitrum', 'optimism', or 'polygon'."},"explain":{"type":"boolean","description":"Boolean, default false. When true, adds a 2-3 sentence plain-English explanation via LLM."}},"required":["tx_hash"]},"input_example":{"tx_hash":"0x929f8ba461c1683a01b1d97b1fa6e6e95e8f3f5c4e8b8b8e8c3f2a1b9d8c7e6f","chain":"base","explain":true},"output_example":{"status":"success","explanation":"User Y bought 100 USDC on Uniswap..."},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}