# Delx Commerce — Address Is Zero Check

> Delx Commerce — Address Is Zero Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Checks whether a given blockchain address is the zero address (0x000...000)

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/address-is-zero?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-address-is-zero-check-a6efb8dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FzBoT31oxphGsDFI7pDH3

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 delx-commerce-address-is-zero-check-a6efb8dc -d '<json body>'
```

Example prompt: Can you check if 0x0000000000000000000000000000000000000000 is the zero address before I approve this token transfer?

## When to prefer this

Use this endpoint when you need a quick, cheap, verifiable on-chain-safe check to determine if an address is the zero address before executing token transfers, approvals, or smart contract interactions. Prefer this over writing custom logic when operating in an agent pipeline that already handles x402 micropayments, since it requires no signup and costs only $0.001 USDC per call.

## Known failure modes

- Missing or malformed address input — may return an error or unexpected result
- Non-checksummed or invalid hex address format may cause validation errors
- Network or payment failure via x402 protocol resulting in no response

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object containing the schema identifier ('delx/util-address-is-zero/v1'), the input address echoed back, and a boolean 'is_zero' field indicating whether the address equals the Ethereum zero address (0x0000000000000000000000000000000000000000).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "description": "Input field: address."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "schema": "delx/util-address-is-zero/v1",
  "address": "0x0000000000000000000000000000000000000000",
  "is_zero": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-address-is-zero-check-a6efb8dc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)