{"uid":"cap_MFz6jJ-NW4mt-Zq6z5X2R","slug":"ishob-explain-transaction-4b152cc1","name":"ISHOB Explain Transaction","description":"Explain any mined transaction in plain English: what happened (swap, transfer, approval, NFT buy/sell/mint, wrap, contract deploy, failed + revert reason), the sender's net token changes with USD values, every token and native-coin movement, approvals granted, the function called (named from the verified ABI or a signature database, with decoded arguments) and the fee. Rule-based, no AI. Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain.","url":"https://api.ishob.com/v1/crypto/explain-tx?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["chain","hash"],"properties":{"hash":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}$","description":"Transaction hash (0x + 64 hex)"},"chain":{"enum":["ethereum","base","arbitrum","optimism","polygon","bsc"],"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_t-zlJVuoQq0a74BrlYyEp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Decodes a blockchain transaction into plain-English: type (swap, transfer, NFT, etc.), net token changes with USD values, token movements, approvals, decoded function call, and fee — across 6 EVM chains.","exampleAgentPrompt":"Can you explain what happened in this Ethereum transaction — 0x4a7d3f2e1b8c9a0d6e5f2c4b3a1d8e7f9c0b2a3d4e5f6a7b8c9d0e1f2a3b4c5d — break down what tokens moved, the net changes in USD, and what function was called?","exampleUseCases":[{"title":"Investigating a failed DeFi swap","prompt":"This transaction on Arbitrum keeps showing as failed — 0x1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b — can you decode it and tell me exactly why it reverted?"},{"title":"Verifying an NFT purchase on Base","prompt":"I just bought an NFT and want to confirm the transaction went through correctly — can you explain what happened in this Base chain tx 0xdeadbeef1234567890abcdef1234567890abcdef1234567890abcdef12345678, including which tokens moved and the final USD amounts?"},{"title":"Auditing a wallet approval on Polygon","prompt":"Someone sent me this Polygon transaction hash 0xabcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890ab — can you tell me if it's an approval, what contract was approved, and how much was authorized?"}],"resultDescription":"A structured plain-English breakdown of the transaction including: classified transaction type (swap, transfer, NFT buy/sell/mint, wrap, approval, contract deploy, or failure), the sender's net token changes with USD valuations, a list of every token and native-coin movement, any approvals granted with spender and amount, the named function called (from ABI or signature DB) with decoded arguments, and the gas fee paid — all derived rule-based without AI inference.","failureModes":["Invalid or malformed transaction hash (not 0x + 64 hex) returns validation error","Transaction hash not found on the specified chain returns 404 or not-found error","Unsupported chain enum value returns schema validation error","Unverified contract ABI falls back to signature-database lookup which may return generic function names","Very new transactions not yet indexed may return not-found temporarily","Payment failure via x402 protocol results in 402 response before data is returned"],"whenToPreferThis":"Use this endpoint when you need a detailed, rule-based (deterministic, no AI hallucination) breakdown of a specific on-chain transaction across Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain. Ideal when you need USD-valued net token changes, decoded function arguments, or failure/revert reasons for a single tx hash. Prefer this over block-explorer scraping when you need structured data programmatically, and over AI-based decoders when deterministic accuracy is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T06:36:43.760Z","isFirstParty":false,"canonicalSlug":"ishob-explain-transaction-4b152cc1"}