# DNS MX Record Change Watch via OpenDNS

> DNS MX Record Change Watch via OpenDNS 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 MX DNS records for a domain via OpenDNS, detecting and reporting changes compared to the previous check (stored 90 days).

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/watch/dns/mx/via/opendns?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-mx-record-change-watch-via-opendns-081afe8b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_U2bXQ8GZIIqVvrc8VB1W4

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-mx-record-change-watch-via-opendns-081afe8b
```

Example prompt: Watch the MX records for example.com via OpenDNS and tell me if anything has changed since the last check — show me what changed, the before and after values, and when it was last seen.

## When to prefer this

Use this endpoint when you need to detect changes in MX records specifically as resolved by OpenDNS, with automatic diffing against prior results. Prefer it over raw DNS lookups when you want change detection logic built in and need to schedule periodic monitoring without maintaining your own state. Choose this over generic DNS tools when you want before/after field-level diffs and a 90-day result history managed server-side.

## Known failure modes

- Domain not found or invalid — DNS NXDOMAIN response returned
- No previous check stored — first call returns current data with changed=false or null baseline
- OpenDNS resolution failure — upstream resolver error or timeout
- Domain query missing from request — required parameter not provided
- Result older than 90 days — previous baseline expired, treated as first-time check

## How this service works

Change watch for dns mx via opendns: 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 MX DNS records for the domain as answered by OpenDNS, a boolean 'changed' flag indicating whether the records differ from the previous check, a list of changed fields with before/after values, and the timestamp of when the records were 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-mx-record-change-watch-via-opendns-081afe8b/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)