# Paygentic Domain DNS Checker

> Paygentic Domain DNS Checker is a paid API for AI agents from api.discoverdmc.cloud, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).

Checks whether a domain resolves and returns its A, MX, and NS DNS records.

## Facts

- Endpoint: GET https://api.discoverdmc.cloud/validate/domain?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/paygentic-domain-dns-checker-5a90b573
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Tq4d0EjbY9Y5ftxKSSXgZ

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 paygentic-domain-dns-checker-5a90b573
```

Example prompt: Can you check whether stripe.com resolves in DNS and tell me its A records, MX records, and nameservers?

## When to prefer this

Use this endpoint when you need a quick, cheap DNS health check for a single domain — especially to confirm it resolves and to retrieve A, MX, and NS records in one call. Prefer it over general-purpose web-fetch tools when you specifically need DNS-layer information rather than HTTP content.

## Known failure modes

- Domain does not exist in DNS — returns resolution failure with empty or absent record sets
- Invalid domain string supplied — may return an error or empty result
- Temporary DNS timeout — resolution may fail intermittently for valid domains
- TLD not recognized — unusual or new TLDs may fail lookup

## How this service works

DNS check for a domain: does it resolve, plus A, MX and NS records. Input: d.

## Output

Returns whether the domain resolves, along with its A records (IP addresses), MX records (mail exchanger hostnames and priorities), and NS records (authoritative nameservers).

## 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": [
      "d"
     ],
     "properties": {
      "d": {
       "type": "string",
       "description": "Domain name, e.g. example.com"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/paygentic-domain-dns-checker-5a90b573/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.discoverdmc.cloud](https://www.zero.xyz/host/api.discoverdmc.cloud/llms.txt)