{"uid":"cap_6iLbtpSHPJKK7JORFclLE","slug":"basename-resolver-912d1211","name":"Basename Resolver","description":"Forward + reverse Basename resolution read from the Base L2 Resolver: turn jesse.base.eth into an address, or an address into its primary Basename. No API key required.","url":"https://402.com.tr/api/x402/basename","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"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["query"],"properties":{"query":{"type":"string","description":"Basename or address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_trzpvW6x2hMa9r599z9Cn","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":"Resolves Base L2 Basenames to Ethereum addresses (forward) or Ethereum addresses to their primary Basename (reverse) using the Base L2 Resolver.","exampleAgentPrompt":"What Ethereum address does jesse.base.eth resolve to on Base?","exampleUseCases":[{"title":"Resolve Basename to wallet address","prompt":"Can you look up the wallet address for vitalik.base.eth on Base?"},{"title":"Reverse lookup wallet to Basename","prompt":"Do you know if the address 0x4bBa290826C253BD854121346890015097022342 has a registered Basename on Base?"},{"title":"Enrich user profile with Basename","prompt":"I have a list of Base wallet addresses — can you check each one to see if they have a human-readable Basename like something.base.eth?"}],"resultDescription":"Returns either the resolved Ethereum address (for a forward Basename lookup) or the primary Basename string (for a reverse address lookup), pulled directly from the Base L2 Resolver on-chain.","failureModes":["Name not registered — Basename has no associated address","Address has no primary Basename set — returns null or empty","Invalid input format — malformed address or non-.base.eth name","Network or resolver timeout — Base L2 RPC unavailable","Payment failure — $0.01 USDC x402 payment not processed"],"whenToPreferThis":"Use this endpoint when you need to resolve Basenames (*.base.eth) specifically on the Base L2 network, as opposed to generic ENS resolution on Ethereum mainnet. It requires no API key, supports both forward and reverse resolution in a single endpoint, and uses the canonical Base L2 Resolver for authoritative results. Prefer it over general ENS libraries when your agent is already operating in the Base ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:40:19.456Z","isFirstParty":false}