# Delx Commerce — IPv4 Private Address Check

> Delx Commerce — IPv4 Private Address Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Checks whether a given IPv4 address falls within a private (RFC 1918) address range

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/ip-v4-private-check?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-ipv4-private-address-check-c33e9739
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Cm0h682KtqmseiuBKsCwD

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-ipv4-private-address-check-c33e9739 -d '<json body>'
```

Example prompt: Is 10.0.0.1 a private IPv4 address?

## When to prefer this

Use this endpoint when an AI agent needs a fast, cheap, verifiable single-call check of whether an IPv4 address is private — especially in pay-per-use agent pipelines where no API key signup is desired and payment is handled via x402 (USDC on Base or Solana). Prefer this over rolling your own regex when auditability and micropayment-based access are required.

## Known failure modes

- Invalid or malformed IPv4 string returns an error response
- Non-IPv4 input (e.g. IPv6 or hostname) may not be supported
- Payment failure (insufficient USDC balance) blocks the call under x402 protocol
- Network timeout or service unavailability

## 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 with a schema identifier ('delx/util-ip-v4-private-check/v1') and a boolean field 'is_private' indicating whether the provided IPv4 address falls within a private (RFC 1918 or loopback) address range.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ip": {
   "type": "string",
   "description": "IPv4 address string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "schema": "delx/util-ip-v4-private-check/v1",
  "is_private": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-ipv4-private-address-check-c33e9739/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)