{"uid":"cap_EcMOvAMsDDOIIN7raW7p7","slug":"ens-basename-name-resolver-5e5cec7b","name":"ENS / Basename Name Resolver","description":"Resolve an ENS name (vitalik.eth) or Basename (jesse.base.eth) to an address, or an address to its verified primary ENS name. On-chain, deterministic, no LLM.","url":"https://138-197-15-135.sslip.io/v1/name/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":["queryParams"],"properties":{"queryParams":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"Name (.eth / .base.eth) or 0x address"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["input","name","address","registry"],"properties":{"name":{"type":["string","null"]},"input":{"type":["string","null"]},"address":{"type":["string","null"]},"registry":{"type":["string","null"]}}}}}}},"responseSchema":{"type":"json","example":{"name":"vitalik.eth","input":"vitalik.eth","address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","registry":"ethereum"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0045","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":"$0.0045/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0045","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0045","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__8VVlZqClvKJsqYwGI1n-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0045","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Resolves ENS (.eth) and Base (.base.eth) names to Ethereum addresses, or reverse-resolves addresses to names, returning registry metadata.","exampleAgentPrompt":"What Ethereum wallet address does vitalik.eth resolve to?","exampleUseCases":[{"title":"ENS name to address lookup","prompt":"Can you find the 0x wallet address that vitalik.eth resolves to on Ethereum?"},{"title":"Base name resolution for payment","prompt":"I want to send USDC to jesse.base.eth — what's the actual 0x address I should use?"},{"title":"Reverse lookup address to name","prompt":"What ENS or Base name is registered to the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?"}],"resultDescription":"Returns a JSON object containing the original input, the resolved name (if given an address), the resolved 0x address (if given a name), and the registry that matched (e.g. 'ethereum' for ENS or 'base' for Base names). Fields may be null if no resolution is found.","failureModes":["Name not found or unregistered: returns null for address field","Invalid input format: malformed address or unsupported TLD","Network timeout or RPC unavailability for ENS/Base registry","Name exists but has no address record set (resolver not configured)","Payment failure via x402 results in 402 response before resolution attempt"],"whenToPreferThis":"Use this endpoint when you need to resolve ENS (.eth) or Base (.base.eth) names to Ethereum addresses, or perform reverse lookups from 0x addresses to human-readable names, especially when operating in an x402 pay-per-call agent context on Base. Prefer this over full node RPC calls when you want a lightweight REST API without managing Web3 provider connections.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:39:20.014Z","isFirstParty":false,"canonicalSlug":"ens-basename-name-resolver-5e5cec7b"}