{"uid":"cap_23zX_gf4nmmxZLidtJWXj","slug":"x402-gateway-production-up-railway-app-69ed11d0","name":"ENS Reverse Resolver","description":"Reverse-resolve an Ethereum address to its ENS name","url":"https://x402-gateway-production.up.railway.app/api/ens/reverse","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","required":["address"],"properties":{"address":{"type":"string","example":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","description":"Ethereum address (0x...)"}},"additionalProperties":false}},"additionalProperties":false}}},"responseSchema":null,"example":{"request":{"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"},"response":{"name":"vitalik.eth","address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"}},"exampleRequest":{"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"},"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nHAbJrIGgYkODyB9zEVAp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Reverse-resolves an Ethereum wallet address to its human-readable ENS (Ethereum Name Service) name","exampleAgentPrompt":"What's the ENS name registered to the Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045? Just give me the .eth domain if one exists.","exampleUseCases":null,"resultDescription":"Returns the ENS (.eth) domain name associated with the given Ethereum address, or an indication that no ENS name is registered to that address.","failureModes":["Address has no reverse ENS record registered — returns null or empty result","Malformed Ethereum address (not a valid hex address) — returns 400 error","ENS resolution service unavailable or timeout — returns 500 error","Address exists but ENS reverse record not set by owner — returns no name found"],"whenToPreferThis":"Use this endpoint when you need to convert a raw Ethereum address into a human-readable ENS identity. Ideal for enriching wallet address data in UIs, identifying counterparties in transactions, or displaying friendly names instead of hex strings. Prefer this over a full ENS forward-resolution endpoint when you already have the address and want the name.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:39:39.320Z","isFirstParty":false}