# SPF Authorizes Mailerlite Change Watch

> SPF Authorizes Mailerlite 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 Mailerlite to send mail, detecting and reporting changes since the last check.

## Facts

- Endpoint: GET https://email.intel.rallylive.ca/watch/email/spf-authorizes/mailerlite?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-mailerlite-change-watch-871036ba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r9RH-btwTbIbyi6kix-5z

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-mailerlite-change-watch-871036ba
```

Example prompt: Watch acme.com for any changes to whether its SPF record authorizes Mailerlite, and let me know if anything changes compared to last time you checked.

## When to prefer this

Choose this endpoint when you need change-detection semantics — you want to know not just whether a domain's SPF authorizes Mailerlite right now, but whether that answer has changed since your last check. Ideal for scheduling recurring monitors or alerts. If you only need a one-time point-in-time lookup, the non-watch sibling endpoint is more appropriate.

## Known failure modes

- Domain not found or DNS resolution failure — returns error or null result
- No prior check stored (first call, or >90 days since last call) — changed flag may be undefined or false by default
- SPF record temporarily unavailable due to DNS propagation delays
- Rate limiting or payment failure ($0.02 USDC per call required via x402)

## How this service works

Change watch for spf authorizes mailerlite: 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-Mailerlite answer (true/false), a changed flag indicating whether the result differs from the previous check (kept for 90 days), a list of fields that changed 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-mailerlite-change-watch-871036ba/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)