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is-port-53-open-bulk
x402
is-port-53-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/UDP port 53 (DNS) is open on up to 20 hosts concurrently in a single batch call, returning ordered results with per-item error fields and a failure count.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bulk is port 53 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 the input sequence, each containing whether port 53 is open or closed, a per-item error field if the probe failed, and a top-level failure count summarizing how many hosts could not be checked.
Example use cases
DNS infrastructure audit across resolver fleet
“I have a list of 15 public DNS resolver IPs I need to audit — can you batch-check which ones have port 53 open and tell me which ones failed to respond?”
Security scan for exposed DNS services
“Run a bulk port 53 check on these 20 internal server IPs and tell me which ones have DNS accidentally exposed, including any that errored out.”
Pre-deployment DNS availability verification
“Before we cut over traffic, can you check that port 53 is open and reachable on all 8 of our new DNS servers at once and flag any that aren't responding?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/bulk/ip/port/53?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a list of 2–20 hosts and need to check port 53 availability efficiently in one call rather than making multiple single-host requests. Ideal for network audits, DNS infrastructure validation, and security scans where concurrency and ordered results matter. Prefer the single-host endpoint if you only have one target.
Side effects
- Host unreachable or network timeout returns per-item error field with failure counted
- Exceeding 20-host batch limit may result in rejection or truncation
- Invalid hostname or IP format causes per-item error
- Service unavailable returns HTTP error without per-item results
- Payment not processed results in HTTP 402 before any probing occurs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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