# Crypto Wallet Address Normalizer

> Crypto Wallet Address Normalizer is a paid API for AI agents from wallet.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Normalizes and standardizes a cryptocurrency wallet address, resolving format inconsistencies for Ethereum and Bitcoin chains.

## Facts

- Endpoint: POST https://wallet.openverbs.com/v1/normalize
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-wallet-address-normalizer-3f68baa1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8dfZMQfCyprSLLnaGZRML

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability crypto-wallet-address-normalizer-3f68baa1 -d '<json body>'
```

Example prompt: Can you normalize this Ethereum wallet address for me — '0xaB5801a7D398351b8bE11C439e05C5B3259aeC9B' — and make sure it's in standard format?

## When to prefer this

Use this endpoint when you need to canonicalize or standardize a crypto wallet address before storing, displaying, or transacting with it — especially when user-submitted addresses may have inconsistent casing, spacing, or formatting. Prefer this over manual regex checks when you need reliable, chain-aware normalization for Ethereum (EIP-55 checksum) or Bitcoin addresses.

## Known failure modes

- Invalid or malformed address string returns an error (e.g. unrecognized format, wrong length)
- Address that doesn't match the specified chain hint may return a mismatch error
- Missing required 'address' field returns a validation error
- Unsupported chain type returns an enum validation error
- Network/service downtime may return a 5xx error

## How this service works

Normalise an address to its canonical form — Ethereum to its EIP-55 checksummed form, bech32 Bitcoin to lowercase (base58check is left untouched as it is case-sensitive). An address that is not a valid address of a known chain is rejected before payment.

## Output

Returns a normalized (canonicalized) version of the submitted wallet address, typically including the standardized address string and inferred or confirmed chain information. For Ethereum, this means EIP-55 checksummed format; for Bitcoin, it returns the canonical address form.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "type": "object",
     "properties": {
      "address": {
       "type": "string",
       "minLength": 1,
       "maxLength": 120,
       "description": "The address to normalise."
      },
      "chain": {
       "type": "string",
       "enum": [
        "ethereum",
        "bitcoin"
       ],
       "description": "Optional chain hint."
      }
     },
     "required": [
      "address"
     ],
     "additionalProperties": false
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-wallet-address-normalizer-3f68baa1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from wallet.openverbs.com](https://www.zero.xyz/host/wallet.openverbs.com/llms.txt)