# DKIM Selector Mandrill Change Watch

> DKIM Selector Mandrill Change Watch is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).

Monitors the Mandrill DKIM selector DNS record for a domain and returns whether it has changed since the last check, along with before/after field diffs.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/watch/dns/dkim/mandrill?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dkim-selector-mandrill-change-watch-0ba46487
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n-nhQpN6l1IwHtibnFcS9

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 dkim-selector-mandrill-change-watch-0ba46487
```

Example prompt: Watch the Mandrill DKIM selector for example.com and tell me if it has changed since the last check — show me what changed and when it was last seen.

## When to prefer this

Use this endpoint when you need to continuously monitor whether a domain's Mandrill DKIM selector record has changed over time, rather than just fetching its current value. It is ideal for scheduling periodic checks and triggering alerts on change, as it handles state comparison internally (storing results for 90 days) so you don't need to maintain your own baseline.

## Known failure modes

- Domain not provided or malformed — returns error
- No previous check stored (first call returns changed: false with no diff)
- DNS lookup failure via Cloudflare DoH — record may be unavailable
- Previous result expired after 90 days — treated as new baseline
- Rate limiting or payment failure at $0.02 per call

## How this service works

Change watch for dkim selector mandrill: 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 Mandrill DKIM selector record value, a boolean indicating whether it changed since the previous check (retained for 90 days), the specific fields that changed with 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/dkim-selector-mandrill-change-watch-0ba46487/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)