# IP Listed on Backscatterer Watch

> IP Listed on Backscatterer 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 an IPv4 address is listed on the Backscatterer DNSBL and alerts on changes compared to the previous check.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/blacklist/backscatterer?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-backscatterer-watch-df8c588e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vnoP9VY-rtISS3YtaNs_B

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-backscatterer-watch-df8c588e
```

Example prompt: Keep an eye on 198.51.100.42 for me — let me know if its Backscatterer blacklist status changes since the last time you checked.

## When to prefer this

Use this endpoint when you need to detect changes in Backscatterer DNSBL listing status over time, not just the current status. It is ideal for scheduled monitoring workflows where you want to be alerted only when something changes, rather than polling a simple check endpoint and doing your own diffing. Prefer this over a plain lookup when you need the before/after diff and change tracking built in.

## Known failure modes

- Invalid or malformed IP address returns an error
- IP not previously checked has no prior state to compare against (first call will establish baseline)
- Results older than 90 days are expired and treated as no prior state
- Payment failure (x402) prevents the check from running
- Backscatterer DNS lookup timeout may cause transient failures

## How this service works

Change watch for ip listed on backscatterer: 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 Backscatterer listing status for the IP, a boolean indicating whether the result changed since the last call, a list of changed fields with before and after values, and the timestamp of when the IP was last seen. Previous check results are retained for 90 days.

## 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-backscatterer-watch-df8c588e/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)