Validate and normalize an Ethereum or EVM wallet address, distinguish valid, absent, or in
Validate and normalize an Ethereum or EVM wallet address, distinguish valid, absent, or invalid ERC-55 checksum casing, and identify the zero address without a network request.
2000 (raw units)
price
4
calls / 30d
3
unique payers
2026-09-01
updated
Provider
apiacre.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xa0BFa4f07281c9b248DC3AED2217836BcA24869B",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "2000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "B4CHWQeQn7GDLZD2aW6hpGG2bEseisBFLZYECA3HDLan",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "2000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"address": "0x0000000000000000000000000000000000000000"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"data": {
"address": "0x0000000000000000000000000000000000000000",
"bytes": 20,
"checksumAddress": "0x0000000000000000000000000000000000000000",
"checksumStatus": "valid",
"inputCase": "numeric",
"inputIsChecksum": true,
"isZero": true,
"normalizedAddress": "0x0000000000000000000000000000000000000000",
"reason": null,
"source": "https://eips.ethereum.org/EIPS/eip-55",
"valid": true,
"verification": {
"balanceChecked": false,
"chainIndependent": true,
"networkRequestsMade": false,
"ownershipChecked": false,
"standard": "ERC-55"
},
"warnings": [
"Zero address detected; do not assume it is an owned or recoverable destination."
]
},
"meta": {
"cached": false,
"duration_ms": 42,
"next_actions": [
{
"method": "POST",
"path": "/v1/crypto/base-account-status",
"reason": "Read one-block Base ETH and native USDC balances, nonce, and contract-code ev...",
"service": "crypto.base-account-status",
"title": "Base account status"
}
],
"sources": [],
"warnings": []
},
"request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
"service": "crypto.address-inspect",
"version": "1"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"address": {
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"address": {
"type": "string"
},
"bytes": {
"type": [
"integer",
"null"
]
},
"checksumAddress": {
"type": [
"string",
"null"
]
},
"checksumStatus": {
"type": "string"
},
"inputCase": {
"type": "string"
},
"inputIsChecksum": {
"type": "boolean"
},
"isZero": {
"type": [
"boolean",
"null"
]
},
"normalizedAddress": {
"type": [
"string",
"null"
]
},
"reason": {
"type": [
"string",
"null"
]
},
"source": {
"type": "string"
},
"valid": {
"type": "boolean"
},
"verification": {
"type": "object"
},
"warnings": {
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"meta": {
"properties": {
"cached": {
"type": "boolean"
},
"duration_ms": {
"type": "integer"
},
"next_actions": {
"items": {
"type": "object"
},
"type": "array"
},
"sources": {
"items": {
"type": "string"
},
"type": "array"
},
"warnings": {
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"duration_ms",
"cached",
"sources",
"warnings",
"next_actions"
],
"type": "object"
},
"request_id": {
"type": "string"
},
"service": {
"type": "string"
},
"version": {
"type": "string"
}
},
"required": [
"request_id",
"service",
"version",
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"id": {
"maxLength": 128,
"minLength": 16,
"pattern": "^[a-zA-Z0-9_-]+$",
"type": "string"
},
"required": {
"type": "boolean"
}
},
"required": [
"required"
],
"type": "object"
}
}
}Use it
curl
curl "https://apiacre.com/v1/crypto/address-inspect" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://apiacre.com/v1/crypto/address-inspect");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://apiacre.com/v1/crypto/address-inspect")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/2539.json, and this resource appears in /discovery/resources and /discovery/search.