{"uid":"cap_B7nWJTqqpCbH6I_w_ujBQ","slug":"ens-name-lookup-rockndefi-xyz-697c40e6","name":"ENS Name Lookup (rockndefi.xyz)","description":"Pay-per-call website uptime/latency/TLS checks and fetch-to-Markdown, measured from US Central (St. Louis). USDC on Base via x402. No account or API key.","url":"https://rockndefi.xyz:8443/v1/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","required":["name"],"properties":{"name":{"type":"string","example":"vitalik.eth","description":"ENS name like vitalik.eth (or pass address= for reverse lookup)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"name":"vitalik.eth","address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}},"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_Lp97cTsM9NfPFlzOjv80q","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":"Resolves an ENS name to its Ethereum address (or performs reverse lookup from address to ENS name), paid per-call via USDC on Base using x402.","exampleAgentPrompt":"What Ethereum address does vitalik.eth resolve to? Use an ENS lookup to get the 0x address.","exampleUseCases":[{"title":"Resolve ENS before sending crypto","prompt":"Before I send ETH, can you look up what address friend.eth resolves to so I can confirm I'm sending to the right wallet?"},{"title":"Verify ENS identity of a counterparty","prompt":"I received a message from someone claiming their wallet is 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — can you do a reverse ENS lookup to see if they actually own a named domain?"},{"title":"Enrich NFT owner data with ENS names","prompt":"I have an Ethereum address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B and I want to know if it has an ENS name attached to it."}],"resultDescription":"Returns a JSON object containing the resolved ENS name and its corresponding Ethereum address (e.g. {\"name\": \"vitalik.eth\", \"address\": \"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"}). Supports both forward (name → address) and reverse (address → name) lookups.","failureModes":["ENS name not found or not registered — returns empty or null address","Invalid ENS name format — may return error response","Address has no reverse ENS record set — reverse lookup returns null name","Network or upstream ENS resolver unavailable — returns 5xx or timeout","Payment not fulfilled via x402 — returns 402 Payment Required before processing"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-as-you-go ENS resolution without requiring an account or API key. Ideal for AI agents or automation workflows that need occasional ENS lookups billed in USDC on Base. Prefer over self-hosted resolvers when you want zero infrastructure overhead and cost is acceptable at $0.002 per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T06:31:31.119Z","isFirstParty":false,"canonicalSlug":"ens-name-lookup-rockndefi-xyz-697c40e6"}