{"uid":"cap_j5XGfe1_cAAISOUBOiHts","slug":"ens-reverse-lookup-803ff9ca","name":"ENS Reverse Lookup","description":"The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.","url":"https://api.strale.io/x402/v2/ens-reverse-lookup","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Ethereum wallet address (0x...)"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0216","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":"$0.0216/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0216","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0216","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zoSXmugIXMEyNMfPMdh7A","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0216","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Resolves an Ethereum wallet address to its associated ENS (Ethereum Name Service) domain name","exampleAgentPrompt":"What ENS name is registered to the Ethereum address 0x1234abcd...? Do a reverse lookup and tell me the human-readable domain associated with it.","exampleUseCases":[{"title":"Identify wallet owner by ENS name","prompt":"I have this Ethereum address — 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — can you look it up and tell me if it has an ENS name attached to it?"},{"title":"Enrich transaction data with identities","prompt":"I'm reviewing a list of Ethereum addresses that sent me transactions. Can you resolve 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B to its ENS domain so I can label it properly in my records?"},{"title":"Verify ENS identity before sending funds","prompt":"Before I send ETH, can you confirm what ENS name belongs to the wallet address 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 so I know I'm dealing with the right person?"}],"resultDescription":"Returns the ENS domain name (e.g. 'vitalik.eth') reverse-resolved from the given Ethereum wallet address, along with a cryptographically hashed audit record confirming the result's provenance and integrity.","failureModes":["Address has no reverse ENS record set — returns null or empty result","Invalid address format (not a valid 0x Ethereum address) — returns validation error","ENS resolver temporarily unavailable — returns service error","Address is valid but reverse record points to a different forward resolution — returned name may not forward-resolve back to the same address"],"whenToPreferThis":"Use this endpoint when you need to resolve a raw Ethereum wallet address to a human-readable ENS name, especially in agent workflows requiring identity enrichment, transaction labeling, or user verification in Web3 contexts. Prefer this over generic blockchain APIs when you need a cryptographic audit trail of the lookup result.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T07:01:30.472Z","isFirstParty":false}