# Is Port 464 Open – Change Watch

> Is Port 464 Open – 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 2026-10-11).

Checks whether TCP port 464 is open on a host, compares the result with the previous check (stored up to 90 days), and returns the current state plus whether it changed and what changed.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/watch/ip/port/464?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/is-port-464-open-change-watch-48b8d329
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QWPeDT9_1p2R953i5KFD-

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-port-464-open-change-watch-48b8d329
```

Example prompt: Keep an eye on whether TCP port 464 is open on auth.mycompany.com and let me know if the status changes from what it was last time.

## When to prefer this

Choose this endpoint when you need change detection on port 464 specifically — it stores prior state server-side for 90 days so you don't need to track previous results yourself. Ideal for scheduling periodic checks and triggering alerts only when status changes, rather than polling and comparing manually. Prefer over a plain port-check endpoint when your goal is monitoring over time rather than a one-off query.

## Known failure modes

- Host unreachable or invalid — connection attempt fails, no port status returned
- No previous result stored — first-call returns current state with changed=false or null baseline
- Rate limits or payment failure — $0.02 per call not processed, request rejected
- Firewall or network filtering at Cloudflare edge — may report port as closed when it is actually filtered

## How this service works

Change watch for is port 464 open: runs the check, compares it with the result from your previous call for the same host (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 open/closed status of port 464 on the target host, a boolean indicating whether it changed since the last call, the specific fields that changed with before and after values, and the timestamp of when the state was last seen. Previous result is 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/is-port-464-open-change-watch-48b8d329/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)