# QuietSignal DNS Inventory — Public DNS Record Lookup

> QuietSignal DNS Inventory — Public DNS Record Lookup is a paid API for AI agents from 83-29-153-50.sslip.io, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-11).

Queries a public hostname via Google DNS-over-HTTPS and returns structured DNS record data (e.g. A records) for that domain.

## Facts

- Endpoint: GET https://83-29-153-50.sslip.io/v1/dns-inventory?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quietsignal-dns-inventory-public-dns-record-lookup-19d5edd8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3w3XEKwLz4_5IHYMgX5Bq

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 quietsignal-dns-inventory-public-dns-record-lookup-19d5edd8
```

Example prompt: Can you look up the DNS records for api.example.com and tell me what IP addresses it resolves to?

## When to prefer this

Prefer this endpoint when you need a quick, machine-readable DNS record lookup for a public hostname without setting up your own DNS resolver. It is useful for infrastructure checks, domain verification, and enrichment workflows where a trusted third-party resolver (Google DoH) is acceptable. Not suitable for private/internal DNS queries, security assessments, or real-time availability monitoring.

## Known failure modes

- Missing or invalid 'domain' query parameter returns a 400 error
- Domain with no DNS records returns empty answers array with rcode 0
- Payment not provided or insufficient USDC returns HTTP 402
- DNS resolution failure or NXDOMAIN may return non-zero rcode
- Unreachable upstream resolver may cause timeout or 503

## How this service works

QuietSignal Public Data: independent, read-only rollup, wallet, opportunity, and developer-data facts for agents, paid per request with USDC over HTTP 402 on Base.

## Output

Returns a JSON object containing the queried domain name, schema version, DNS records (e.g. A records with rcode and answers), the resolver used (Google Public DNS-over-HTTPS), and a disclaimer that results reflect public DNS observations only and are not a security or availability assessment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Public hostname to query through a fixed DNS-over-HTTPS resolver"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "domain": "example.com",
  "schema": "public-dns-inventory/v1",
  "records": {
   "A": {
    "rcode": 0,
    "answers": []
   }
  },
  "resolver": "Google Public DNS-over-HTTPS",
  "disclaimer": "Public DNS observations only; not a security or availability assessment."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quietsignal-dns-inventory-public-dns-record-lookup-19d5edd8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 83-29-153-50.sslip.io](https://www.zero.xyz/host/83-29-153-50.sslip.io/llms.txt)