{"uid":"cap_sSSRsMA8AQeUmaROtipiN","slug":"hermes-x402-toolkit-base-transaction-lookup-630e3b63","name":"Hermes x402 Toolkit – Base Transaction Lookup","description":"Pay-per-call data API for AI agents. No API key, no account, no signup — pay USDC on Base (eip155:8453) per request; free /api/meta lists all 22 endpoints. One call each: web page to LLM-ready text and link previews; China A-share quotes and limit-up pool; Chinese text and pinyin; Base/Ethereum on-chain reads (address, token, ERC-20 balances, tx, blocks, transfer history, gas price in USD); NFT records (collection, owner, and ipfs:// tokenURI resolved through public gateways); full-page screenshots; email verification without sending mail; ENS forward/reverse resolution; smart-contract due diligence (ABI, verified source, proxy); token security facts (owner, renounced ownership, paused, bytecode capability selectors); domain dossier (RDAP, DNS, TLS certificate, HTTP facts, hosting network).","url":"https://api.zlovev.com/api/chain/tx","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["hash"],"properties":{"hash":{"type":"string","description":"0x-prefixed 32-byte transaction hash on Base mainnet"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"to":"0x…","from":"0x…","hash":"0x00…00","block":51396188,"status":"success","fee_eth":"0.000021","fee_usd":0.0001,"gas_used":21000,"value_eth":"0.0","confirmations":12}},"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_XxRAoRWMfuQpA1h8sBzis","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":"Look up details of a transaction on Base mainnet by its 0x-prefixed hash, returning status, fees, gas, value, and confirmations.","exampleAgentPrompt":"Can you look up Base mainnet transaction 0x3a1b2c...d4e5f6 and tell me whether it succeeded, how many confirmations it has, and what the fee was in USD?","exampleUseCases":[{"title":"Verify a USDC payment on Base","prompt":"I just sent a USDC payment on Base — the transaction hash is 0xabc123...def456. Can you confirm it went through and tell me the status and how many confirmations it has?"},{"title":"Audit gas costs for a Base transfer","prompt":"Can you fetch the details for Base transaction 0x9f8e7d...6c5b4a and tell me exactly how much gas was used and what the fee was in both ETH and USD?"},{"title":"Confirm recipient of an on-chain transfer","prompt":"I need to verify who received the funds in Base transaction 0x1a2b3c...4d5e6f — can you look it up and give me the from and to addresses along with the value transferred?"}],"resultDescription":"Returns a JSON object with: ok (boolean success flag), from (sender address), to (recipient address), hash (transaction hash), block (block number), status ('success' or error string), fee_eth (fee in ETH), fee_usd (fee in USD as number), gas_used (integer), value_eth (ETH value transferred), and confirmations (integer count).","failureModes":["Invalid or malformed transaction hash returns an error response","Transaction hash not found on Base mainnet returns ok:false or 404","Network congestion may delay confirmation count updates","Hash for a transaction on a different chain (e.g. Ethereum mainnet) will not be found","Missing required 'hash' query parameter causes a validation error"],"whenToPreferThis":"Choose this endpoint when you need a pay-per-call, no-signup way to verify or inspect a specific Base mainnet transaction by hash — particularly useful for AI agents that need to confirm payment receipts, audit gas costs, or validate on-chain transfers without maintaining API keys or accounts. Prefer this over block explorer scraping when you need structured JSON output suitable for downstream processing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-18T06:30:04.308Z","isFirstParty":false}