# SPF Authorizes Marketo Watch

> SPF Authorizes Marketo 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).

Checks whether a domain's SPF record authorizes Marketo to send email, compares with the previous result, and returns what changed and when.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/spf-authorizes/marketo?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-marketo-watch-47de96a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tbAmqnz0JwxbjyMZ1Hmmw

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-marketo-watch-47de96a5
```

Example prompt: Keep watch on whether acme.com's SPF record authorizes Marketo to send email — let me know if that authorization status ever changes compared to the last check.

## When to prefer this

Use this endpoint when you need to continuously monitor whether a domain's SPF record authorizes Marketo specifically, and want to be alerted on changes rather than just getting the current status. Prefer this over a one-shot check when you need change detection, before/after diffs, and the ability to schedule repeated polling for deliverability compliance or audit purposes.

## Known failure modes

- Domain not found or has no SPF record — returns current status as not authorized with no prior comparison
- No previous result stored (first call or older than 90 days) — returns current result with changed=false and no before/after diff
- Invalid or malformed domain input — may return an error or empty result
- DNS lookup timeout — may return an error indicating the check could not complete
- Payment failure — call rejected before check is performed

## How this service works

Change watch for spf authorizes marketo: 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-Marketo boolean result, a changed true/false flag indicating whether it differs from the previous call, a list of fields that changed with before and after values, and a timestamp of when the record was last seen. 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/spf-authorizes-marketo-watch-47de96a5/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)