# SPF Authorizes ActiveCampaign - Change Watch

> SPF Authorizes ActiveCampaign - Change Watch is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-24).

Monitors whether a domain's SPF record authorizes ActiveCampaign to send its mail, alerting when that authorization status changes.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/spf-authorizes/activecampaign?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/spf-authorizes-activecampaign-change-watch-c1c1ff8d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GrqHL47snyQwGSQCpuZU6

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 spf-authorizes-activecampaign-change-watch-c1c1ff8d
```

Example prompt: Keep an eye on whether example.com's SPF record still authorizes ActiveCampaign to send email, and let me know if that ever changes.

## When to prefer this

Use this endpoint when you need to detect *changes* in whether a domain's SPF record authorizes ActiveCampaign over time, rather than just a one-time point-in-time check. Ideal for scheduled polling workflows, alerting pipelines, or compliance monitoring where knowing 'did this change?' is more valuable than just the current state.

## Known failure modes

- Domain not previously checked — no historical data to compare against, so 'changed' is undefined on first call
- DNS resolution failure — SPF TXT record cannot be fetched via Cloudflare DoH
- Invalid or missing domain input — endpoint returns an error
- Stored result expired after 90 days — treated as first call with no prior comparison available
- Payment failure — x402 micropayment not completed, request rejected

## How this service works

Change watch for spf authorizes activecampaign: 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 boolean answer (does the domain's SPF record authorize ActiveCampaign), a 'changed' true/false flag comparing against the previous call's result for the same domain (stored up to 90 days), the specific fields that changed along with before/after values, and a timestamp of when the result 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/spf-authorizes-activecampaign-change-watch-c1c1ff8d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from email.intel.rallylive.ca](https://www.zero.xyz/host/email.intel.rallylive.ca/llms.txt)