# Zero Address Detector

> Zero Address Detector is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-19).

Detects whether an EVM address is the zero address (0x0000...0000), returning a boolean and normalized address for validation use cases.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/address-is-zero?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/zero-address-detector-033a6b27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sK7CgtVRmX2ZrojmqMQi8

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 zero-address-detector-033a6b27 -d '<json body>'
```

Example prompt: Can you check if the address 0x0000000000000000000000000000000000000000 is the EVM zero address before I use it as a recipient?

## When to prefer this

Choose this endpoint when you need a lightweight, deterministic, no-RPC check to confirm whether an EVM address is the zero/burn/sentinel address (0x000...000) before using it as a recipient or validating contract state. Ideal for agents that need a cheap ($0.001 USDC), side-effect-free, API-key-free validation step in a larger workflow.

## Known failure modes

- Invalid or malformed address string returns an error response
- Missing address field in request body results in validation error
- Non-hex or improperly checksummed addresses may not parse correctly

## How this service works

Detect the zero EVM address used as empty/burn/default sentinel. Call when validating recipients or detecting unset address fields safely. Returns boolean is_zero plus normalized address as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

## Output

Returns a deterministic JSON object with a boolean field `is_zero` indicating whether the input is the EVM zero address, plus the normalized form of the input address. No external calls are made; result is computed locally from pure math.

## 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/zero-address-detector-033a6b27/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)