# DNS A Record Change Watch via Google

> DNS A Record Change Watch via Google is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Monitors DNS A record lookups via Google DNS for a given domain and returns whether the result has changed since the last call, with before/after field diffs.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/watch/dns/a/via/google?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-a-record-change-watch-via-google-b5a2962a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l8eDDwEzXYEdj5mnnNDdl

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 dns-a-record-change-watch-via-google-b5a2962a
```

Example prompt: Keep an eye on the DNS A record for example.com using Google DNS — let me know if the IP address changes compared to the last time you checked.

## When to prefer this

Use this endpoint when you need to detect changes in a domain's A record specifically as resolved by Google DNS, and you want a stateful diff (before/after) rather than just the current value. Ideal for scheduling periodic checks and triggering alerts on IP changes. Prefer this over plain DNS lookup endpoints when change detection and history (90-day retention) are required.

## Known failure modes

- Domain not found or NXDOMAIN — returns empty record set
- No previous result stored (first call) — changed may be false or undefined with no diff
- Google DNS resolution failure — upstream timeout or error returned
- Invalid domain name input — request rejected
- Rate limiting or payment failure — endpoint returns error

## How this service works

Change watch for dns a via google: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

## Output

Returns the current DNS A record answer for the domain as resolved by Google DNS, a boolean 'changed' flag indicating whether the result differs from the previous call (stored up to 90 days), a list of fields that changed with their before and after values, and the timestamp of when the record was last seen.

## 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",
     "properties": {}
    }
   },
   "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/dns-a-record-change-watch-via-google-b5a2962a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)