# ip-listed-on-spamrats-noptr-watch

> ip-listed-on-spamrats-noptr-watch is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-13).

Monitors whether a given IP address is listed on the SpamRATS NoPtr DNS blacklist and returns whether that status has changed since the last check.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/blacklist/spamrats-noptr?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ip-listed-on-spamrats-noptr-watch-fd7f7482
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0j8uEwqbBXfhLOUG6nW0r

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 ip-listed-on-spamrats-noptr-watch-fd7f7482
```

Example prompt: Check if the IP 198.51.100.42 is currently listed on the SpamRATS NoPtr blacklist and tell me whether that status has changed since the last time you checked.

## When to prefer this

Choose this endpoint when you need to detect changes in an IP's SpamRATS NoPtr blacklist status over time rather than just a one-time lookup. It is ideal for scheduled monitoring workflows where you want to be alerted only when something has changed, avoiding noise from repeated identical results. Use it specifically for the SpamRATS NoPtr list (which targets IPs with no PTR/reverse DNS record); use sibling endpoints for other blacklists like SpamRATS DYNA or CBL.

## Known failure modes

- IP parameter missing or malformed — returns error with no status
- No previous result stored (first call) — 'changed' is indeterminate or false by default
- SpamRATS NoPtr DNS lookup failure — may return error or stale result
- IP not valid or private/reserved — blacklist check may return unexpected results
- Payment not accepted (x402) — call blocked if USDC payment not included

## How this service works

Change watch for ip listed on spamrats noptr: runs the check, compares it with the result from your previous call for the same ip (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 SpamRATS NoPtr blacklist status for the IP, a boolean 'changed' flag indicating whether the result differs from the previous call (stored up to 90 days), the specific fields that changed with before/after values, and the timestamp of when the status was last observed.

## 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/ip-listed-on-spamrats-noptr-watch-fd7f7482/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ip.intel.rallylive.ca](https://www.zero.xyz/host/ip.intel.rallylive.ca/llms.txt)