{"uid":"cap_mu7E28EmBfwz6c9zlsck8","slug":"synthora-transaction-intent-classifier-a9cebe51","name":"SYNTHORA Transaction Intent Classifier","description":"Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, reverted tx. POST {\"tx_hash\":\"0x..\",\"chain\":\"base\"} or {\"to\":\"0x..\",\"data\":\"0x..\"}.","url":"https://api.hergertsynthora.com/v1/txintent","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"to":{"type":"string"},"data":{"type":"string"},"chain":{"type":"string"},"tx_hash":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0QG4dD5cOlgMje9GzSRKG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Decodes the real intent of an on-chain Ethereum/Base transaction and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous) flagging issues like unlimited approvals, opaque selectors, and reverted transactions.","exampleAgentPrompt":"Can you check if this Base transaction is safe — the hash is 0x4a7b9c2d1e3f... — I want to know its real intent and whether it has any unlimited approvals or other red flags before I approve it.","exampleUseCases":[{"title":"Pre-signing wallet transaction audit","prompt":"Before I sign this transaction, can you tell me what it's actually doing and whether it's safe? The tx hash is 0xabc123... on Base — I'm especially worried about unlimited token approvals."},{"title":"Suspicious DeFi interaction review","prompt":"I got a transaction request from a DeFi app with calldata 0xdeadbeef... going to contract 0x1234... on Ethereum — can you decode what it's really trying to do and give me a risk verdict?"},{"title":"Post-execution reverted transaction diagnosis","prompt":"A transaction I submitted on Base reverted — the hash is 0x9f8e7d... — can you analyze what the intent was and tell me if it looks like it was a malicious call or just a failed legitimate tx?"}],"resultDescription":"A risk verdict label (safe, review, suspicious, or dangerous) accompanied by a decoded human-readable intent description of the transaction, specific risk flags detected (e.g. unlimited approval, opaque selector, value sent to contract, reverted tx), and an Ed25519 cryptographic signature authenticating the verdict.","failureModes":["Invalid or unrecognized tx_hash returns an error — transaction may not be indexed yet or may not exist on the specified chain","Unsupported chain identifier causes a 400-level error","Missing both tx_hash and to/data fields results in a validation error","Highly obfuscated or novel contract interactions may result in a 'review' verdict rather than a definitive classification","Payment failure (x402) blocks the call if USDC balance is insufficient","Network latency from on-chain RPC lookups may cause timeouts for recently submitted transactions"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically signed, human-readable risk classification of a specific Ethereum or Base transaction before or after execution — especially when you need to detect unlimited token approvals, obfuscated calldata, unexpected ETH-to-contract transfers, or reverted malicious calls. Prefer this over generic ABI decoders when you need a clear safe/suspicious verdict with a verifiable signature rather than just raw decoded data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:47:16.555Z","isFirstParty":false}