{"uid":"cap_iMI5b8RjEjSqXZNq94wmD","slug":"api-web3identity-com-70333144","name":"Web3Identity ENS Reverse Resolver","description":"Reverse resolve address to ENS name","url":"https://api.web3identity.com/api/reverse/:address","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_l1MNz4K9QNdaGvPDBdzaJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Reverse resolves an Ethereum wallet address to its associated ENS (Ethereum Name Service) name","exampleAgentPrompt":"What's the ENS name for Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045? I want the human-readable .eth name tied to that wallet.","exampleUseCases":[{"title":"Verify creator identity in NFT marketplace","prompt":"I just received an NFT from wallet 0x1234567890abcdef. Can you look up the ENS name for that address so I can verify who the creator actually is?"},{"title":"Enrich transaction history with readable names","prompt":"Pull up the transaction history for my wallet and replace all those long hex addresses with their ENS names wherever they exist. I want to see who I've actually been trading with."},{"title":"Build a leaderboard with wallet identities","prompt":"I have a list of top 50 Ethereum wallet addresses from our DeFi protocol. Can you resolve each one to their ENS name so we can display them on our leaderboard with actual readable identities instead of address strings?"}],"resultDescription":"Returns the ENS name (e.g. 'vitalik.eth') associated with the given Ethereum address, enabling human-readable identification of a wallet, or an indication that no ENS reverse record is set.","failureModes":["Address has no reverse ENS record set — returns null or empty result","Invalid Ethereum address format — returns 400 or error response","Address is valid but has never interacted with ENS — no name found","Network or RPC timeout reading from ENS registry","Rate limit exceeded or payment failure via x402 protocol"],"whenToPreferThis":"Use this endpoint when you have an Ethereum wallet address and need to display or identify it as a human-readable ENS name. Ideal for enriching transaction histories, wallet profiles, leaderboards, or any UI showing wallet identities. Prefer this over on-chain lookups when you want a managed, paid API with aggregated reliability rather than running your own Ethereum node.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:37:59.273Z","isFirstParty":false}