{"uid":"cap_6dUDdN7E2VGgFuEkzK6UW","slug":"x402-ens-resolver-5e44ade1","name":"x402 ENS Resolver","description":"Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name","url":"https://x402tap.com/api/ens-resolve?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, e.g. \"vitalik.eth\""},"address":{"type":"string","description":"EVM address to reverse-resolve to its primary ENS name"}}}},"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":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ea0-p6XLZN2as40so6T0u","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Resolve an ENS name (e.g. vitalik.eth) to its EVM address, or reverse-resolve an EVM address to its primary ENS name","exampleAgentPrompt":"What Ethereum address does vitalik.eth resolve to?","exampleUseCases":[{"title":"Resolve ENS to wallet address","prompt":"Can you look up the Ethereum wallet address for nick.eth?"},{"title":"Reverse-resolve wallet to ENS name","prompt":"What's the primary ENS name registered for the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?"},{"title":"Verify ENS identity before sending funds","prompt":"Before I send crypto to this person, can you confirm that coinbase.eth actually resolves to the address they gave me: 0x123abc...?"}],"resultDescription":"A JSON object containing the resolved ENS name and its corresponding EVM address. For a forward resolution (name → address), returns the wallet address. For a reverse resolution (address → name), returns the primary ENS name. Example: {\"name\": \"vitalik.eth\", \"address\": \"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"}.","failureModes":["ENS name does not exist or has no address record set — may return null address or error","Address has no primary ENS name set — reverse resolution returns empty or null name","Malformed ENS name or invalid EVM address format in query — returns 400 or error response","ENS resolver or upstream Ethereum node temporarily unavailable — 5xx error","Name recently updated; cached resolution may be stale"],"whenToPreferThis":"Use this endpoint when you need fast, cheap ENS resolution for either forward (name→address) or reverse (address→name) lookups in a Web3 or Ethereum context. At $0.002 per call, it is well-suited for per-request resolution in agentic workflows without requiring your own Ethereum node or ENS library integration.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:32:20.456Z","isFirstParty":false,"canonicalSlug":"x402-ens-resolver-5e44ade1"}