{"name":"tx-dossier","description":"Decodes an EVM transaction and explains it in plain English, in one call. Composite: one call runs tx-receipt-decode + crypto-tx-explainer in parallel and merges decoded event logs (ERC-20/ERC-721 transfers, approvals, verified-ABI events) with an LLM-written plain-English summary of what the transaction did. Includes status, gas, from/to/value, and per-component telemetry. The explainer is optional and degrades on timeout without failing the call. Data-only aggregation; no advice. Use it as an EVM tx data pack, tx debug bundle, or Basescan + Etherscan tx reader.","price":"$0.04","method":"POST","input_schema":{"properties":{"tx_hash":{"type":"string","description":"0x-prefixed 32-byte transaction hash (66 chars total)."},"chain":{"type":"string","description":"EVM chain slug: 'base' (default), 'ethereum', 'polygon', 'arbitrum', 'optimism'."}},"required":["tx_hash"]},"input_example":{"tx_hash":"0xa3e8e2f5b7c1d4f6e9a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4","chain":"base"},"output_example":{"tx_hash":"0xa3e8e2f5b7c1d4f6e9a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4","chain":"base","receipt":{"status":"success","gas_used":134567,"decoded_logs":[{"event_name":"Transfer"}]},"explanation":{"explanation":"This transaction swapped WETH for USDC on a DEX."},"note":"Data-only aggregation of decoded receipt data. Not advice.","composed_of":["tx-receipt-decode","crypto-tx-explainer"],"components":[{"name":"tx-receipt-decode","ok":true,"ms":1450},{"name":"crypto-tx-explainer","ok":true,"ms":6200}],"degraded":false},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}