{"uid":"cap_se_qGQe6FGJvNcozl2O6t","slug":"eth-mainnet-ens-resolve-4cd21556","name":"ETH Mainnet ENS Resolve","description":"","url":"https://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_ens_resolve?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"name":{"type":"string","description":"an ASCII .eth name (forward), OR"},"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"0x + 40 hex (reverse, verified)"}}}},"additionalProperties":false}}},"responseSchema":null,"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_xCCeBc436KNRVSvZ35z6b","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 .eth name to its Ethereum address (forward lookup) or verifies an Ethereum address to its ENS name (reverse lookup)","exampleAgentPrompt":"What Ethereum address does vitalik.eth resolve to? Also double-check it by doing the reverse lookup on that address to confirm its verified ENS name.","exampleUseCases":[{"title":"Forward resolve a .eth domain","prompt":"What is the Ethereum wallet address for uniswap.eth? Resolve it on Ethereum mainnet."},{"title":"Verify reverse ENS for a wallet","prompt":"Does the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 have a verified reverse ENS name? If so, what is it?"},{"title":"Enrich user profile with ENS identity","prompt":"I have this Ethereum address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — can you find out if it has an ENS name registered to it?"}],"resultDescription":"Returns either the resolved Ethereum address (0x-prefixed, 40 hex characters) for a forward ENS lookup, or the verified reverse ENS name (ASCII .eth string) for a reverse lookup, depending on which parameter was provided.","failureModes":["ENS name not registered or expired — returns null or empty result","Address has no reverse ENS record set — returns null","Invalid address format (not 0x + 40 hex) — schema validation error","ENS name is not ASCII or not a .eth name — rejected by schema","Network or RPC node outage on Ethereum mainnet — service unavailable","Payment failure via x402/USDC — call not executed"],"whenToPreferThis":"Use this endpoint when you need a fast, single paid call to resolve or reverse-resolve an ENS name on Ethereum mainnet without running your own Ethereum node. Prefer it over generic Ethereum RPC endpoints when you want a clean REST interface that abstracts away raw eth_call mechanics. It is ideal for agents that need to enrich wallet addresses with human-readable ENS identities or validate that a .eth name maps to an expected address.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T00:32:44.433Z","isFirstParty":false,"canonicalSlug":"eth-mainnet-ens-resolve-4cd21556"}