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ENS Reverse Resolution – api.web3identity.com
x402
ENS Reverse Resolution – api.web3identity.com is a paid API for AI agents from api.web3identity.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Reverse resolves an Ethereum address to its ENS (Ethereum Name Service) human-readable name
Price / call$0.01
Success—
StatusUnknown
How this service works
Reverse resolve address to ENS name
Output
Returns the ENS .eth human-readable name (e.g. 'vitalik.eth') that is set as the reverse record for the given Ethereum address, or null/empty if no reverse record is configured.
Example use cases
Example prompt
“What is the ENS name for the Ethereum address 0x00000000219ab540356cBB839Cbe05303d7705Fa?”
Technical details
Endpoint
POSThttps://api.web3identity.com/api/reverse/0x00000000219ab540356cBB839Cbe05303d7705FaWhen to prefer
Use this endpoint when you have a raw Ethereum wallet address and need to display or identify it by its human-readable ENS name. Prefer this over on-chain direct calls when you need a fast, paid API lookup without running your own Ethereum node. Ideal for enriching address data in user interfaces, transaction history displays, or identity resolution pipelines.
Side effects
- Address has no reverse ENS record set — returns null or empty string
- Invalid Ethereum address format — returns 400 or error response
- Address checksum mismatch — may return error or no result
- ENS resolver unavailable — service timeout or 503
- Payment failure — x402 payment not accepted, returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| namerequired | string | ENS name |
Tags
x402
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