# dns-a-via-nextdns

> dns-a-via-nextdns is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Looks up DNS A records for a domain using NextDNS as the resolver via DNS over HTTPS, returning IPs, TTL, response code, DNSSEC validation status, and answer time.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/a/via/nextdns?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-a-via-nextdns-c0d194b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4fM53QeWtBFMwM2gvRKTK

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 dns-a-via-nextdns-c0d194b8
```

Example prompt: What A record does NextDNS return for example.com — give me the IPs, TTL, response code, whether DNSSEC was validated, and how long the resolver took to answer.

## When to prefer this

Choose this endpoint when you specifically need to see how NextDNS resolves a domain's A records — useful for comparing NextDNS's filtering behavior, DNSSEC validation, or propagation lag against other resolvers. Prefer this over generic DNS tools when you need NextDNS-specific answers including its security filtering perspective and DNSSEC validation status.

## Known failure modes

- Domain does not exist returns NXDOMAIN response code
- NextDNS filters the domain returning a blocked/redirect IP instead of real answer
- SERVFAIL response if NextDNS cannot resolve the domain
- Empty record set if domain has no A records configured
- Network timeout if NextDNS resolver is unreachable
- Invalid domain name input may return an error or empty response

## How this service works

A records for a domain as answered by NextDNS (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to spot propagation lag, filtering or split-horizon answers. $0.01 per lookup.

## Output

Returns the A records (IP addresses) for the queried domain as answered by NextDNS, along with TTL, DNS response code (NOERROR, NXDOMAIN, or SERVFAIL), a boolean indicating whether DNSSEC was validated, and the resolver's answer time in milliseconds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dns-a-via-nextdns-c0d194b8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dns.intel.rallylive.ca](https://www.zero.xyz/host/dns.intel.rallylive.ca/llms.txt)