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AgentShelf DNS A Record Lookup
x402
AgentShelf DNS A Record Lookup is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-01).
Resolves a hostname to its IPv4 addresses only, returning an error if no A records are found.
Price / call$0.006
Success—
StatusUnknown
How this service works
Call when an agent needs IPv4 addresses only. Empty is an error, unlike the bundled dns-lookup SKU. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/dns-a first.
Output
Returns the resolved IPv4 addresses (A records) for the given hostname. If the hostname has no A records, an error is returned rather than an empty result — this distinguishes it from a bundled DNS lookup that tolerates empty responses.
Example use cases
Verify server IP before deployment
“Before I deploy, can you resolve staging.myapp.io to its IPv4 address so I can confirm the DNS is pointing at the right server?”
Security audit of suspicious domain
“I need to know what IPv4 addresses malicious-looking-domain.xyz resolves to — look up its A records for me.”
Check CDN IP assignment
“Can you fetch the IPv4 address that cdn.mycompany.com currently resolves to? I want to confirm it's hitting our CDN and not an old origin server.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/dns-a?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need IPv4 (A record) DNS resolution and require that an empty result be treated as a hard error. Prefer the free POST /v1/sandbox/dns-a first for testing. Use this over a bundled DNS-lookup SKU when you want strict IPv4-only results without silent empty responses.
Side effects
- Hostname has no A records — returns an error (empty result is not allowed)
- Invalid or malformed hostname — validation error
- Hostname does not exist (NXDOMAIN) — error response
- Private or internal hostnames may not resolve publicly
- Network timeout from DNS resolver — error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hostname | string | Public DNS hostname such as example.com. Not a URL, not an IP literal, and not a private name. |
Tags
x402
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