# IP Listed on SORBS DUL Change Watch

> IP Listed on SORBS DUL Change 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 2026-10-12).

Monitors whether an IP address is listed on the SORBS DUL (Dial-Up List) blacklist and alerts when the listing status changes between checks.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/blacklist/sorbs-dul?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ip-listed-on-sorbs-dul-change-watch-51c3dfba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aB4_oUY6GZwc7LDpSr2xv

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-sorbs-dul-change-watch-51c3dfba
```

Example prompt: Keep an eye on whether 203.0.113.45 gets listed or delisted from the SORBS DUL blacklist and let me know if anything changes since the last time we checked.

## When to prefer this

Use this endpoint when you need ongoing change detection for SORBS DUL blacklist status rather than a one-time lookup. It is ideal for scheduled monitoring workflows where you want to be alerted only when the listing status actually changes, avoiding noise from repeated identical results. Prefer it over a plain blacklist check when you need historical comparison, before/after diffs, and a 'changed' signal to trigger downstream actions.

## Known failure modes

- Invalid or malformed IP address returns an error
- IP not previously checked returns no diff (first-run baseline only)
- SORBS DUL service temporarily unavailable may cause lookup failure
- Previous result expired after 90 days resets the comparison baseline
- Rate limits or payment failures block the check

## How this service works

Change watch for ip listed on sorbs dul: 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 SORBS DUL blacklist status for the IP, a boolean indicating whether it changed since the last call (stored up to 90 days), a diff of fields that changed with before/after values, and the timestamp of when it 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/ip-listed-on-sorbs-dul-change-watch-51c3dfba/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)