{"version":"1.0","name":"Build a Base address evidence pack","description":"Validate an EVM address, read its point-in-time Base account state, then retrieve recent official Circle USDC transfers over a bounded block range. The results are public-chain evidence, not proof of identity, ownership, authorization, solvency, or compliance.","network":"eip155:8453","asset":"USDC","paymentProtocol":"x402 v2 exact","buyerGuideUrl":"https://apiacre.com/buyers","catalogUrl":"https://apiacre.com/workflows.json","workflow":{"id":"base-address-evidence","title":"Build a Base address evidence pack","description":"Validate an EVM address, read its point-in-time Base account state, then retrieve recent official Circle USDC transfers over a bounded block range. The results are public-chain evidence, not proof of identity, ownership, authorization, solvency, or compliance.","documentationUrl":"https://apiacre.com/workflows/base-address-evidence","machineReadableUrl":"https://apiacre.com/workflows/base-address-evidence.json","totalPrice":"$0.01","totalAtomicUsdc":10000,"stepCount":3,"steps":[{"order":1,"service":"crypto.address-inspect","title":"EVM address inspection","purpose":"Validate, normalize, and checksum the supplied EVM address offline.","method":"POST","url":"https://apiacre.com/v1/crypto/address-inspect","price":"$0.002","documentationUrl":"https://apiacre.com/services/crypto.address-inspect","checkoutUrl":"https://apiacre.com/try/crypto.address-inspect","workflowStartUrl":"https://apiacre.com/workflows/base-address-evidence/start/1","sampleUrl":"https://apiacre.com/samples/crypto.address-inspect","inputTemplate":{"address":"$walletAddress"},"useOutput":"Stop unless result.data.valid is true, and reject result.data.isZero when the zero address is not explicitly intended."},{"order":2,"service":"crypto.base-account-status","title":"Base account status","purpose":"Read ETH balance, nonce, and contract-code evidence at one safe Base block.","method":"POST","url":"https://apiacre.com/v1/crypto/base-account-status","price":"$0.003","documentationUrl":"https://apiacre.com/services/crypto.base-account-status","checkoutUrl":"https://apiacre.com/try/crypto.base-account-status","workflowStartUrl":"https://apiacre.com/workflows/base-address-evidence/start/2","sampleUrl":"https://apiacre.com/samples/crypto.base-account-status","inputTemplate":{"address":"$step1.result.data.checksumAddress","block_tag":"safe"},"useOutput":"Review the resolved block and account fields as a point-in-time status; empty bytecode does not establish control or permanent account type."},{"order":3,"service":"crypto.base-usdc-transfers","title":"Base USDC transfer history","purpose":"Retrieve newest-first official Base USDC events over a bounded range.","method":"POST","url":"https://apiacre.com/v1/crypto/base-usdc-transfers","price":"$0.005","documentationUrl":"https://apiacre.com/services/crypto.base-usdc-transfers","checkoutUrl":"https://apiacre.com/try/crypto.base-usdc-transfers","workflowStartUrl":"https://apiacre.com/workflows/base-address-evidence/start/3","sampleUrl":"https://apiacre.com/samples/crypto.base-usdc-transfers","inputTemplate":{"address":"$step1.result.data.checksumAddress","lookback_blocks":2000,"direction":"any","limit":25,"block_tag":"safe"},"useOutput":"Treat result.data.transfers as bounded public event evidence only; the result is not complete history or proof of transfer purpose or authority."}]}}