# PennyRail DNS Records Lookup

> PennyRail DNS Records Lookup is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).

Resolves and returns DNS records for a given domain using a paid micro-settlement API

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/dns.records--proven-dns?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-dns-records-lookup-e307f066
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zJpwHf2R2uuFR4bYJBQ98

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability pennyrail-dns-records-lookup-e307f066 -d '<json body>'
```

Example prompt: Can you look up the DNS records for example.com and tell me what A, MX, and TXT records are configured?

## When to prefer this

Use this endpoint when you need programmatic, pay-per-query DNS record lookups without maintaining your own DNS resolver infrastructure. It is well-suited for agent workflows that occasionally need to verify domain configuration, check email DNS setup, or audit nameserver delegation, and where a micro-payment ($0.001 USDC) model is acceptable. Prefer alternatives (e.g. free public DNS APIs) for high-volume bulk lookups where per-call cost accumulates significantly.

## Known failure modes

- Invalid or non-existent domain returns an error or empty record set
- Malformed input object causes a 400-level rejection
- DNS resolution timeout if the authoritative nameserver is unreachable
- Rate limiting or payment failure via x402 protocol blocks the request
- DNSSEC validation issues may cause certain records to be withheld

## How this service works

Machine-readable settlement service

## Output

Returns DNS record data for the queried domain, including record types (A, AAAA, MX, TXT, CNAME, NS, SOA, etc.), record values, and TTL information, delivered as a JSON object.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-dns-records-lookup-e307f066/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)