# is-ip-heroku-watch

> is-ip-heroku-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).

Change-detection watch that checks whether an IP address belongs to Heroku, compares the result to the previous check (retained 90 days), and returns what changed with before/after values.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/is/heroku?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/is-ip-heroku-watch-c072f126
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_H68EqETZq97IRVizWKBmB

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 is-ip-heroku-watch-c072f126
```

Example prompt: Keep an eye on 54.210.167.204 and let me know if its Heroku classification ever changes — I want to see what it was before and what it changed to.

## When to prefer this

Choose this endpoint when you need to continuously monitor whether a specific IP address remains on or transitions to/from Heroku infrastructure over time, and want automated diff tracking (before/after values) without managing your own state. Prefer this over a one-shot check when you intend to schedule periodic polling and need change-alerting semantics built in.

## Known failure modes

- Invalid or malformed IP address returns an error response
- No previous result stored (first call for this IP) — 'changed' will be null or false with no before value
- IP address is IPv6 when only IPv4 is supported
- Service unavailable or timeout from upstream Heroku IP data source
- Payment failure or insufficient USDC balance blocks the $0.02 per call charge

## How this service works

Change watch for is ip heroku: 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 is-Heroku boolean answer for the IP, a 'changed' true/false flag indicating whether the result differs from the previous call (stored up to 90 days), the specific fields that changed with their before and after values, and a timestamp of when the IP 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/is-ip-heroku-watch-c072f126/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)