{"uid":"cap_1iEUcIY-YpGzkbNZlukFl","slug":"ens-name-resolution-reverse-lookup-543c9210","name":"ENS Name Resolution & Reverse Lookup","description":"Machine-payable data APIs for AI agents — 35 endpoints across web search, on-chain reads, trading data, and AI-visibility. Pay per call in USDC via x402 on Base. No API keys, no signup.","url":"https://x402-agent-store.rileycraig14.workers.dev/chain/ens?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","properties":{"name":{"type":"string","description":"ENS name to resolve to an address, e.g. vitalik.eth"},"address":{"type":"string","description":"0x address to reverse-resolve to its primary ENS name"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"name":{"type":"string"},"address":{"type":"string"},"resolved":{"type":"boolean"}}}}}}},"responseSchema":{"type":"json","example":{"name":"vitalik.eth","chain":"ethereum","query":"vitalik.eth","avatar":null,"address":"0xd8da6bf26964af9d7eed9e03e53415d37aa96045","resolved":true,"direction":"name->address"}},"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_ISIlxIEmhwcgk9CMXWgKe","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":"Resolves an ENS name to its Ethereum address, or reverse-resolves an 0x address to its primary ENS name","exampleAgentPrompt":"What Ethereum address does vitalik.eth resolve to? And while you're at it, can you also reverse-lookup 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 to find its primary ENS name?","exampleUseCases":null,"resultDescription":"A JSON object containing the ENS name, the resolved 0x Ethereum address, the query string, the chain (ethereum), the resolution direction (name->address or address->name), a resolved boolean indicating success, and an avatar URL if set.","failureModes":["ENS name does not exist or has no resolver — resolved: false returned","0x address has no primary ENS name set — resolved: false returned","Malformed ENS name or invalid 0x address input — may return error or unresolved result","Neither 'name' nor 'address' query param provided — ambiguous request","Network or RPC timeout reading from Ethereum mainnet"],"whenToPreferThis":"Use this endpoint when you need to resolve ENS names to Ethereum addresses or reverse-resolve wallet addresses to human-readable ENS names, without needing an API key or signup. Ideal for AI agents that need to enrich on-chain identity data on the fly and can pay $0.001 USDC per call via the x402 protocol on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T06:37:13.519Z","isFirstParty":false,"canonicalSlug":"ens-name-resolution-reverse-lookup-543c9210"}