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is-port-502-open-bulk
x402
is-port-502-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 502 (Modbus) is open on up to 20 hosts concurrently, returning ordered results with per-item errors and a failure count.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bulk is port 502 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 the host identifier, whether port 502 is open or closed, and an error field if the check failed for that host. A top-level failure count summarizes how many items encountered errors.
Example use cases
ICS exposure audit across fleet
“I have a list of 18 industrial control system IPs — can you batch-check all of them to see which ones have port 502 open and flag any that are unexpectedly reachable from the internet?”
Modbus device discovery scan
“We're onboarding a new facility network and I need to know which of these 20 host addresses are running Modbus services on port 502 — can you scan them all at once?”
Security posture verification
“Before our compliance review, can you check these 12 servers to confirm that port 502 is closed on all of them — and give me a count of any that are still open?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/bulk/ip/port/502?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a list of 2–20 hosts and need to check port 502 (Modbus) status efficiently in a single API call rather than making individual requests per host. It is purpose-built for batch enrichment workflows where ordering of results must match input order and partial failures should not block the full batch. Prefer this over the single-host endpoint whenever you hold a list and want to minimize API call overhead and cost.
Side effects
- Host unreachable or DNS resolution failure — per-item error field populated, host counted in failure total
- Batch exceeds 20 hosts — request rejected or truncated
- Network timeout on individual host checks — reported as per-item error
- Invalid host format in input — per-item error returned
- Payment not fulfilled (x402) — entire batch request rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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