# x402-toolbox DNS PTR Records Lookup

> x402-toolbox DNS PTR Records Lookup is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Resolves reverse DNS PTR records for a given IP address or hostname via a pay-per-call x402 micropayment API

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/network/dns-ptr-records?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-dns-ptr-records-lookup-0654d041
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xnPaKbAfGh4yRSDJSZuIV

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 x402-toolbox-dns-ptr-records-lookup-0654d041
```

Example prompt: Can you do a reverse DNS PTR record lookup for the IP address 8.8.8.8 and tell me what hostname it resolves to?

## When to prefer this

Choose this endpoint when you need a quick, no-signup reverse DNS PTR record lookup paid via USDC micropayment on Base. Ideal for AI agents that need on-demand DNS resolution without managing API keys, especially in automated pipelines where pay-per-call billing via x402 is preferred over subscription-based DNS services.

## Known failure modes

- No PTR record exists for the queried IP (NXDOMAIN or empty response)
- Invalid or malformed IP address input
- Network timeout reaching upstream DNS resolver
- Payment not processed or x402 payment rejected
- Rate limiting if payment validation fails

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

A JSON response indicating success, payment confirmation, and the resolved PTR (reverse DNS pointer) record(s) for the queried IP address or DNS schema — returning the canonical hostname(s) associated with that IP.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-dns-ptr-records-lookup-0654d041/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)