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PennyRail DNS A-Record Lookup
x402
PennyRail DNS A-Record Lookup is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Resolves a hostname to its DNS A record (IPv4 address) via a paid machine-readable settlement service
Price / call$0.003
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing the resolved IPv4 address(es) and associated DNS A record data for the queried hostname, such as IP address values and potentially TTL or record metadata.
Example use cases
Verify deployment IP for domain
“What IP address does staging.myapp.io currently resolve to? I want to confirm the DNS A record matches our new server after the migration.”
Diagnose routing issue for service
“Look up the A record for payments.acmecorp.com — I need the raw IPv4 address to check if it's pointing to the right load balancer.”
Monitor DNS propagation after update
“Can you check the current A record for blog.mybrand.net? I updated the DNS an hour ago and want to see if the new IP has propagated yet.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/network/dns.a--a-recordWhen to prefer
Use this endpoint when you need a quick, programmatic DNS A-record lookup and are operating in an x402 micropayment-enabled environment. It is suitable for agents that need to resolve hostnames to IPv4 addresses on demand without managing their own DNS resolver infrastructure. At $0.003 per call it is cost-effective for occasional lookups but may not be ideal for high-volume bulk resolution tasks.
Side effects
- Invalid or malformed hostname input returns an error
- Non-existent domain with no A record may return empty or error response
- Network timeout if upstream DNS resolver is unreachable
- Payment failure via x402 prevents the request from being processed
- Domain has only AAAA (IPv6) records and no A record, resulting in empty result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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