# IP Listed on UCEProtect-3 Change Watch

> IP Listed on UCEProtect-3 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 IPv4 address is listed on UCEProtect Level 3 (dnsbl-3.uceprotect.net) and returns the current status plus a change diff compared to the previous check.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/blacklist/uceprotect-3?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-uceprotect-3-change-watch-8e3a4279
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Z4HBVYVAsXeGZN-UDrmEJ

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-uceprotect-3-change-watch-8e3a4279
```

Example prompt: Keep an eye on 203.0.113.42 for me — let me know if its UCEProtect Level 3 blacklist status ever changes from what you last saw.

## When to prefer this

Use this endpoint when you need change detection rather than just a one-time status check — it is specifically designed for scheduled polling workflows where you want to be alerted only when the UCEProtect Level 3 listing status of an IP changes, avoiding noise from repeated identical results. Prefer this over the plain ip-listed-on-uceprotect-3 endpoint when building monitoring pipelines or automations that fire conditionally on state transitions.

## Known failure modes

- IP address not supplied or malformed — query fails with validation error
- No previous record found for IP (first call) — changed field may be null or false by default
- DNSBL query timeout or DNS resolution failure — may return error or stale result
- IP address is IPv6 — endpoint appears to support IPv4 only
- Stored result older than 90 days purged — comparison unavailable, treated as first call

## How this service works

Change watch for ip listed on uceprotect 3: 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 UCEProtect-3 blacklist status for the IP (listed true/false), a boolean indicating whether the result has changed since the previous call, a diff of which fields changed with before and after values, and the timestamp of when the status was last observed. Previous 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/ip-listed-on-uceprotect-3-change-watch-8e3a4279/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)