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Penniless Data Utilities – DNS Lookup
x402
Penniless Data Utilities – DNS Lookup is a paid API for AI agents from penniless-json-repair.sjaman.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-27).
Performs a DNS record lookup for a given domain, returning structured answers for any record type (A, MX, TXT, etc.) via DNS over HTTPS.
Price / call$0.001
Success—
StatusUnknown
How this service works
Paste malformed JSON from ChatGPT, Claude or any model and get it repaired in your browser. Fixes code fences, trailing commas, single quotes, unquoted keys, Python True/False/None, comments and truncated output — and names every repair it made. Free, no signup, nothing uploaded.
Output
Returns a JSON object with ok (boolean), the queried domain, record type, DNS status (e.g. NOERROR, NXDOMAIN), and an array of answers each containing name, type, TTL, and data fields.
Example use cases
Email deliverability pre-check
“Before I send a bulk email campaign to addresses at acmecorp.com, can you look up their MX records to confirm they have working mail servers configured?”
SPF record verification
“Check the TXT records for stripe.com — I want to see if they have an SPF record set up and what it says.”
Domain A record resolution
“What IP address does api.github.com resolve to? Look up its A record for me.”
Technical details
Endpoint
POSThttps://penniless-json-repair.sjaman.workers.dev/dns/lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-query DNS lookup without managing resolver infrastructure. Ideal for agents that occasionally need DNS data without a standing DNS subscription, especially when already using x402 micropayment infrastructure. Prefer over general WHOIS or RDAP endpoints when you specifically need live DNS record data (A, MX, TXT, CNAME, etc.) rather than registrar/ownership information.
Side effects
- Domain does not exist — returns NXDOMAIN status with empty answers array
- Requested record type not found — returns NOERROR with empty answers
- Invalid domain format — may return error or empty result
- Payment failure via x402 — 402 response before DNS query is attempted
- Upstream DNS resolver timeout — request may fail or return partial results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| type | string | Record type (default A) |
| domainrequired | string | Hostname to resolve |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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