# SPF Authorizes Mailgun Change Watch

> SPF Authorizes Mailgun 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 Mailgun to send email, alerting you when that authorization status changes.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/spf-authorizes/mailgun?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-mailgun-change-watch-19648b0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TBsm85ljTOz9tUuFr7TXJ

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-mailgun-change-watch-19648b0e
```

Example prompt: Keep an eye on whether acme.com's SPF record still authorizes Mailgun to send email — let me know if that authorization status ever changes.

## When to prefer this

Choose this endpoint when you need ongoing alerting on whether a domain's SPF record authorizes Mailgun specifically — not just a one-time check. It stores the previous result for up to 90 days so you can detect drift without maintaining your own state. Prefer this over a plain SPF check when scheduling periodic polls and needing a changed flag with field-level before/after diffs.

## Known failure modes

- Domain not yet tracked — first call establishes baseline with no prior comparison available
- DNS lookup failure for the domain's SPF record — check if domain exists
- Invalid or missing domain query parameter — returns 400-level error
- Mailgun SPF include mechanisms may change, causing false positives if Mailgun updates their IP ranges
- Payment not settled — x402 payment required before result is returned

## How this service works

Change watch for spf authorizes mailgun: 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 SPF-authorizes-Mailgun status for the domain, a boolean indicating whether the result changed since the last check, a list of fields that changed with before and after values, and a timestamp of when the status was last seen. Results are retained and compared for up to 90 days.

## 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-mailgun-change-watch-19648b0e/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)