# IPv6 Expand/Compress Change Watch

> IPv6 Expand/Compress Change Watch is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Monitors an IPv6 address normalizer for changes by comparing the current expansion/compression result against the previously stored result, returning what changed and when.

## Facts

- Endpoint: GET https://intel.rallylive.ca/watch/ip/expand
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ipv6-expand-compress-change-watch-a8f10575
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zKg7TGZlBrleoiiwDvm_J

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 ipv6-expand-compress-change-watch-a8f10575
```

Example prompt: Keep an eye on the IPv6 normalizer for me — call the expand/compress watch endpoint and tell me if anything has changed since the last time we checked, including exactly which fields are different and what the before and after values were.

## When to prefer this

Use this endpoint when you need ongoing, scheduled monitoring of an IPv6 address normalizer rather than a one-off lookup. It is ideal for automated pipelines or agents that need to detect configuration drift, validate that IPv6 normalization behavior is stable, or audit changes over time without maintaining their own state storage — since the service stores results for 90 days.

## Known failure modes

- No previous result stored (first call returns no diff, just current result)
- Invalid or malformed IPv6 address input returns an error
- Previous result expired after 90 days, resetting the comparison baseline
- Network timeout reaching the normalizer backend
- Payment not processed (x402 payment required at $0.02 USDC per call)

## How this service works

Change watch for ipv6 expand compress: runs the check and compares it with the result from your previous call for the same ip (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when ipv6 normalizer changes. $0.01 per check.

## Output

Returns the current IPv6 expand/compress result, a boolean indicating whether it changed since the last call, a detailed diff of exactly which fields changed with their before and after values, and the timestamp of when the result 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/ipv6-expand-compress-change-watch-a8f10575/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from intel.rallylive.ca](https://www.zero.xyz/host/intel.rallylive.ca/llms.txt)