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Web3Identity ENS Reverse Resolver
x402
Web3Identity ENS Reverse Resolver is a paid API for AI agents from api.web3identity.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Reverse resolves an Ethereum wallet address to its associated ENS (Ethereum Name Service) name
Price / call$0.01
Success—
StatusUnknown
How this service works
Reverse resolve address to ENS name
Output
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.
Example use cases
Verify creator identity in NFT marketplace
“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?”
Enrich transaction history with readable names
“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.”
Build a leaderboard with wallet identities
“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?”
Technical details
Endpoint
GEThttps://api.web3identity.com/api/reverse/:addressWhen to prefer
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.
Side effects
- 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
Tags
x402
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