# DNS A Records Change Watch

> DNS A Records Change Watch is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Monitors DNS A record lookups for a domain on a schedule, detecting and reporting exactly what changed between the current and previous check.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/dns/a
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-a-records-change-watch-8ac00e3c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CdcjIvuRzwEMHX77pqYG9

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-records-change-watch-8ac00e3c
```

Example prompt: Keep an eye on the DNS A records for example.com and let me know if anything changes — compare against what you saw last time and tell me exactly which fields are different.

## When to prefer this

Choose this endpoint when you need to detect changes in DNS A records over time for a specific domain and want a built-in diff against the previous check without managing your own storage. It's ideal for scheduled monitoring workflows where you call it periodically and act only when the 'changed' flag is true. Prefer it over raw DNS lookup endpoints when you need the historical comparison and structured before/after diff automatically.

## Known failure modes

- Domain not found or invalid — returns an error indicating the domain cannot be resolved
- No previous result stored (first call) — returns current data with changed=false or no diff
- Payment failure — x402 payment not accepted, request rejected
- Domain with no A records — returns empty answer set
- Rate limit or network timeout — temporary failure, retry advised

## How this service works

Change watch for dns a records: runs the check and compares it with the result from your previous call for the same domain (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when dns a record lookup changes. $0.01 per check.

## Output

Returns the current DNS A record answer for the domain, a boolean indicating whether it changed since the last check, a structured diff showing exactly which fields changed with before and after values, and the timestamp of when the record was last seen. Previous results are retained for 90 days for comparison.

## 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-records-change-watch-8ac00e3c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)