# is-port-873-open-bulk

> is-port-873-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).

Bulk-checks whether TCP port 873 (rsync) is open on up to 20 hosts concurrently, returning ordered results with per-item error fields and a failure count.

## Facts

- Endpoint: GET https://ip.intel.rallylive.ca/bulk/ip/port/873?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-873-open-bulk-5ab6417e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nDrLwLYNokE1Fa7OJvEm2

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-873-open-bulk-5ab6417e
```

Example prompt: Check if port 873 (rsync) is open on these hosts all at once: 192.168.1.1, 10.0.0.5, server1.example.com, and 203.0.113.42.

## When to prefer this

Use this endpoint when you need to check port 873 (rsync) status on multiple hosts in a single API call, rather than making repeated single-host requests. It is ideal for bulk enrichment workflows, infrastructure audits, or security sweeps where you have a list of up to 20 targets and want concurrent results with ordered output and error tracking per item.

## Known failure modes

- More than 20 hosts submitted — batch size limit exceeded
- Individual host unreachable or DNS resolution failure — per-item error field populated
- Network timeout on connection attempt — item marked as error
- Invalid host format in input list — per-item validation error
- Payment not provided or insufficient — x402 payment required response

## How this service works

Bulk is port 873 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 results matching the input host list, each containing the host, a boolean indicating whether port 873 is open, a per-item error field (null on success), plus an overall failure count summarizing how many checks could not be completed.

## 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-873-open-bulk-5ab6417e/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)