# SignalDesk AI MAC Address Validator

> SignalDesk AI MAC Address Validator is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).

Validates a MAC address string and returns syntax validity, multicast flag, and locally-administered bit status

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/network/mac-validate?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-mac-address-validator-91bb838b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lmPXnetaqpffiPMvxBwvp

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 signaldesk-ai-mac-address-validator-91bb838b -d '<json body>'
```

Example prompt: Can you check if the MAC address 02:00:5E:10:00:00 is valid, and tell me whether it's a multicast or locally-administered address?

## When to prefer this

Use this endpoint when you need a fast, cheap, programmatic check of a MAC address string's validity and flags (multicast/locally-administered) without standing up your own parsing logic. Ideal for network onboarding pipelines, IoT device registration, or security auditing workflows where per-call cost ($0.001 USDC) is acceptable and you need structured boolean outputs rather than a human-readable explanation.

## Known failure modes

- Missing or empty mac field returns an error
- MAC address exceeding 32 characters may be rejected
- Malformed JSON body returns a parse error
- Service quota exhaustion returns a 402 or rate-limit error
- Network timeout from Cloudflare Worker cold start

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

A JSON object containing three boolean fields: valid_syntax (whether the MAC address is correctly formatted), multicast (whether the address is a multicast MAC address), and locally_administered (whether the locally-administered bit is set, indicating a software-assigned rather than hardware-burned address).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "mac": {
   "type": "string",
   "maxLength": 32,
   "description": "MAC address."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "multicast": false,
  "valid_syntax": true,
  "locally_administered": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-mac-address-validator-91bb838b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)