Resolve a Basename or ENS name to an address, or an address to its primary name
Resolve a Basename or ENS name to an address, or an address to its primary name. Pass ?name=402utils.base.eth (name→address) or ?address=0x… (address→primary name). Basenames resolve on Base L2, other .eth names on Ethereum mainnet. Reverse results are forward-verified. ASCII names only; offchain (CCIP-read) resolvers like cb.id are not supported.
Answeringour last check, 2026-10-02
1 of 1checks answered this week
19 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://402utils.com/v1/wallet-name
| Category | Market data |
|---|---|
| Provider host | 402utils.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-02 | valid payment request | 402 | $0.002 | 19 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"name": "vitalik.eth"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"description": "Exactly one query param: name (ENS/Basename) or address (0x\u2026).",
"properties": {
"address": {
"description": "A 0x-prefixed 20-byte address.",
"type": "string"
},
"name": {
"description": "An ENS or Basename, e.g. 402utils.base.eth or vitalik.eth.",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"description": "EIP-55 checksummed.",
"type": "string"
},
"chain": {
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"direction": {
"enum": [
"forward",
"reverse"
],
"type": "string"
},
"name": {
"type": "string"
},
"reason": {
"description": "When resolved=false: not_found, no_address_record, no_primary_name, offchain_unsupported, unverified, invalid_input.",
"type": "string"
},
"resolved": {
"type": "boolean"
}
},
"required": [
"resolved"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}