# is-port-464-open-bulk

> is-port-464-open-bulk is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11).

Checks whether TCP port 464 (Kerberos password change) is open on up to 20 hosts in a single concurrent batch call, returning per-host results in input order.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/bulk/ip/port/464?utm_source=zero.xyz
- Price: $0.1/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-bulk-7b8eb6e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rxfwtW3koG47r7-gmUwAt

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-bulk-7b8eb6e3
```

Example prompt: Check whether port 464 is open on these 15 servers all at once: 203.0.113.1, 203.0.113.2, ... (list) — I need a result for each one so I can see which are exposing the Kerberos password-change port.

## When to prefer this

Choose this endpoint when you have a list of 2–20 hosts and need to check port 464 status for all of them efficiently in one API call rather than making separate single-host requests. It is ideal for fleet audits, batch security scans, or post-migration validation where concurrent execution and ordered results matter. Prefer the single-host endpoint when checking only one host to minimize cost.

## Known failure modes

- Host unreachable or DNS resolution failure — reflected in per-item error field
- Timeout on individual hosts — counted in failure count, rest of batch still returned
- Input list exceeds 20 hosts — request rejected or truncated
- Network-level firewall blocking the probe — may report port as closed when actually filtered
- Invalid hostname or IP format — per-item error returned

## How this service works

Bulk is port 464 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.

## Output

An ordered array of per-host results (matching input order), each containing whether port 464 is open (boolean or status), a per-item error field indicating any per-host failure, and an aggregate failure count for the batch.

## 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-bulk-7b8eb6e3/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)