# DNS Change Detect Watch

> DNS Change Detect 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 a DNS zone for changes by comparing the current DNS check result against the previous stored result, returning what changed and when.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/dns/zone-diff
- 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-change-detect-watch-cc1181f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7-XUk3tD_fTUc73_cw5Er

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-change-detect-watch-cc1181f2
```

Example prompt: Keep an eye on the DNS zone for example.com and let me know if anything has changed since the last time you checked — show me exactly which records changed and what the before and after values were.

## When to prefer this

Use this endpoint when you need stateful, diff-aware DNS monitoring — specifically when you want to know not just the current DNS answer but whether it has changed and precisely what changed. Prefer this over a simple DNS lookup when building automated change-alerting workflows, detecting DNS hijacking, auditing zone integrity after migrations, or polling on a schedule. The 90-day result retention and field-level before/after diffing make it far more useful than a raw DNS query for change detection scenarios.

## Known failure modes

- Domain not found or invalid domain name returns an error
- First call for a domain has no previous result to compare against, so changed will be false
- Results older than 90 days are purged, resetting the comparison baseline
- Payment failure or insufficient balance blocks the check
- Network timeout reaching the DNS zone

## How this service works

Change watch for dns change detect: 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 change detection changes. $0.01 per check.

## Output

Returns the current DNS answer for the domain, a boolean indicating whether anything changed since the previous call, a detailed diff of exactly which fields changed with before and after values, and a 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-change-detect-watch-cc1181f2/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)