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reverse-dns-lookup-bulk
x402
reverse-dns-lookup-bulk is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Performs reverse DNS lookups on up to 20 IP addresses in a single concurrent batch call, returning hostnames in input order with per-item error fields.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bulk reverse dns lookup: up to 20 ips in one call, processed concurrently, results returned in input order with a per-item error field and a count of failures. Same answer per item as the single /dns/reverse endpoint (Reverse DNS). Batch enrichment for agents that hold a list. $0.01 per batch.
Output
An ordered array of reverse DNS results matching the input IP list. Each item contains the resolved hostname (PTR record) for the corresponding IP, a per-item error field if resolution failed, and an overall count of failures across the batch. Results are returned in the same order as the input IPs.
Example use cases
Security log IP enrichment
“I've got 18 suspicious IPs flagged in our SIEM today — run a bulk reverse DNS lookup on all of them and show me the hostnames so I can see which ones belong to known cloud providers or hosting companies.”
Network audit hostname resolution
“We're auditing our firewall connection logs and have 20 external IPs we need to identify — do a batch reverse DNS lookup and return their hostnames in the same order so I can match them back to our log entries.”
Ad fraud IP investigation
“These 12 IP addresses showed unusually high click rates in our ad campaign — batch reverse-DNS-resolve them and flag any that fail, I want to see if they're residential, datacenter, or unknown.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/bulk/dns/reverseWhen to prefer
Use this endpoint when you need to resolve hostnames for multiple IP addresses (up to 20) in a single call rather than making repeated single-IP lookups. Ideal for log enrichment pipelines, security analysis, network audits, or any workflow where you hold a list of IPs and need their PTR records concurrently. Prefer over the single /dns/reverse endpoint whenever you have 2 or more IPs to resolve in the same operation.
Side effects
- Individual IPs with no PTR record return a per-item error with null hostname
- Invalid IP address format causes a per-item error for that entry
- Batch exceeds 20 IPs may result in a request-level error
- Network timeout on upstream DNS resolvers may cause partial failures with non-zero failure count
- Payment failure (x402) blocks the entire batch call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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