{"uid":"cap_j55qtMUvTBY5Nu3lvHsPO","slug":"base-transaction-status-erc-20-transfer-decoder-cb3f33fb","name":"Base Transaction Status & ERC-20 Transfer Decoder","description":"Did this Base transaction succeed, and who paid whom? hash=0x.. (64 hex) -> status success|failed|pending, block, confirmations, timestamp, from, to, ETH value, gas used + fee in ETH, method (transfer / approve / transferWithAuthorization / Multicall3 ...), is_x402_settlement (EIP-3009 AuthorizationUsed on USDC), and every decoded ERC-20 Transfer (token, symbol, from, to, amount with decimals).","url":"https://kr-x402-mvp.kgy5612.workers.dev/crypto/tx-status?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["hash"],"properties":{"hash":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}$","examples":["0x3ea6d07f7e990ba4c2289487cd12ea41b6e13b48518fa38b24de2afd1df1d8ca"],"description":"Base tx hash"},"expect_to":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Optional: payee you expect to receive USDC"},"expect_usdc":{"type":"number","minimum":0,"description":"Optional: minimum USDC amount expected (with expect_to)"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"to":"0xca11bde05977b3631167028862be2a173976ca11","from":"0xc6699d2aada6c36dfea5c248dd70f9cb0235cb63","hash":"0x3ea6d07f7e990ba4c2289487cd12ea41b6e13b48518fa38b24de2afd1df1d8ca","block":53220068,"chain":"base","method":"aggregate3 (Multicall3)","status":"success","fee_eth":6.5e-7,"gas_used":92312,"timestamp":"2026-10-28T23:18:03Z","transfers":[{"to":"0xe4be4d0bd82d8e68203deff81f79ede0529f2617","from":"0xa1d1c0cf717402ff3651aa4873ccf96410b01978","token":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":0.002,"symbol":"USDC"}],"value_eth":0,"confirmations":21764,"usdc_received":{"0xe4be4d0bd82d8e68203deff81f79ede0529f2617":0.002},"payment_verified":true,"is_x402_settlement":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_foAgmlMGD1VABurfhXNKu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up a Base blockchain transaction by hash and returns full status, gas/fee details, decoded ERC-20 transfers, and x402/USDC payment verification","exampleAgentPrompt":"Can you check whether transaction 0x3ea6d07f7e990ba4c2289487cd12ea41b6e13b48518fa38b24de2afd1df1d8ca on Base succeeded, who paid whom, how much USDC was transferred, and whether it qualifies as an x402 settlement?","exampleUseCases":[{"title":"Verify incoming USDC payment receipt","prompt":"I need to confirm that address 0xe4be4d0bd82d8e68203deff81f79ede0529f2617 received at least 0.002 USDC in transaction 0x3ea6d07f7e990ba4c2289487cd12ea41b6e13b48518fa38b24de2afd1df1d8ca on Base — can you verify that and tell me if it's confirmed?"},{"title":"Debug a failed onchain transfer","prompt":"Transaction 0x3ea6d07f7e990ba4c2289487cd12ea41b6e13b48518fa38b24de2afd1df1d8ca seems to have gone wrong — can you look it up on Base, tell me if it succeeded or failed, what method was called, and what the gas fee ended up being?"},{"title":"Audit x402 agent payment settlement","prompt":"My agent just made an x402 USDC payment on Base with hash 0x3ea6d07f7e990ba4c2289487cd12ea41b6e13b48518fa38b24de2afd1df1d8ca — can you decode all the ERC-20 transfers, confirm it was an EIP-3009 AuthorizationUsed settlement, and show me the from/to addresses and amounts?"}],"resultDescription":"Returns a JSON object with: transaction status (success/failed/pending), block number, chain, number of confirmations, ISO timestamp, from/to addresses, ETH value, gas used, fee in ETH, decoded method name (e.g. aggregate3/Multicall3/transfer/approve), is_x402_settlement boolean, payment_verified boolean, a usdc_received map of address→amount, and a transfers array each with token contract address, symbol, from, to, and decimal-adjusted amount.","failureModes":["Invalid hash format (not 0x + 64 hex chars) returns 400 validation error","Transaction not found on Base returns 404 or empty result","Payment verification fails if expect_to address did not receive expect_usdc amount","Pending transactions return status=pending with 0 confirmations and no decoded transfers","Node/RPC timeout may return 503 or partial data","x402 payment of 0.002 USDC required; missing or invalid payment header returns 402"],"whenToPreferThis":"Choose this endpoint when you need to verify the outcome of a specific Base transaction — particularly for USDC/ERC-20 payment confirmation, x402 settlement verification, or decoding which addresses exchanged which token amounts. It is purpose-built for onchain payment receipt verification (with expect_to/expect_usdc parameters) and x402 EIP-3009 detection, making it superior to generic block explorers or RPC calls for agent payment workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:08.459Z","isFirstParty":false,"canonicalSlug":"base-transaction-status-erc-20-transfer-decoder-cb3f33fb"}