{"uid":"cap_tLAksjEcrz2YF13iyd0V0","slug":"delx-evm-address-zero-check-379a29b6","name":"Delx EVM Address Zero Check","description":"EVM Address Zero Check: EVM Address Zero Check detects the all-zero EVM address after shape normalization from bounded caller-supplied values without an external provider. Call EVM Address Zero Check before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Address Zero Check as versioned deterministic JSON. Price: $0.001 US…","url":"https://api.delx.ai/api/v1/x402/evm-address-zero-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"address":{"type":"string","maxLength":8192,"description":"Address supplied to EVM Address Zero Check; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"address":"0x0000000000000000000000000000000000000000","is_zero":true},"schema":"delx/util-evm-address-zero-check/v1","status":"advisory","evidence":{"retained":false,"input_sha256":"fb35427cc7fc026be258e32964fdad1d9b726d346965a22055b1d3d8ddb25f51","external_calls":0},"operation":"evm_preflight:evm_address_zero_check"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cz1g5hcr_IKeR3KniCkWP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a given EVM address is the zero address (0x0000000000000000000000000000000000000000)","exampleAgentPrompt":"Before we send those tokens, check if the recipient address 0xAbC1234567890000000000000000000000000000 is the zero address — I don't want to accidentally burn them.","exampleUseCases":[{"title":"Preflight check before token transfer","prompt":"Before executing this EVM transfer, verify that the destination address 0x0000000000000000000000000000000000000000 is not the zero address — block it if it is."},{"title":"Smart contract deployment guard","prompt":"I'm about to deploy a contract that takes an owner address as a constructor argument — check if 0xdEAD000000000000000042069420694206942069 is the zero address so I can reject it early."},{"title":"DeFi agent wallet validation","prompt":"My DeFi agent just scraped a recipient address from an onchain event: 0x0000000000000000000000000000000000000000 — can you confirm whether this is the null/zero address before we proceed?"}],"resultDescription":"Returns a JSON object with the input address echoed back, a boolean is_zero field indicating whether it matches the EVM zero address, the operation name, a status of 'advisory', and an evidence block confirming no data was retained and no external calls were made.","failureModes":["Missing or malformed address field returns a validation error","Address string exceeding 8192 characters is rejected","Non-EVM address formats (e.g. Bitcoin, Solana) may return unexpected results","Network errors or API downtime return a 5xx response"],"whenToPreferThis":"Use this endpoint when you need a lightweight, auditable, no-retention preflight check to detect the EVM zero address before executing a token transfer, contract deployment, or any EVM transaction. Prefer it over client-side string comparison when you need a verifiable evidence trail (input hash, no external calls) or when operating in a governed agent workflow where all operations should be logged and receipted.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:19:00.803Z","isFirstParty":false}