# dns-aaaa-internal-subdomain

> dns-aaaa-internal-subdomain is a paid API for AI agents from dns.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Looks up the AAAA (IPv6) DNS record for the 'internal' subdomain of a given domain via Cloudflare DoH, reporting existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/internal/aaaa?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-aaaa-internal-subdomain-a96369fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SEMP32cqc1N0fiGOchfn6

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-aaaa-internal-subdomain-a96369fd
```

Example prompt: Check if internal.rallylive.ca has an IPv6 address — look up its AAAA DNS record and tell me whether it exists, what the record says, and the TTL.

## When to prefer this

Use this endpoint when you need a fast, targeted existence check for the 'internal' subdomain of a specific domain over IPv6 (AAAA), without needing to enumerate all subdomains. Prefer it over general DNS tools when you specifically want Cloudflare DoH resolution with TTL metadata for this common internal hostname pattern.

## Known failure modes

- Domain does not exist — NXDOMAIN response, record reported as absent
- No AAAA record exists for internal.<domain> even if the domain itself resolves
- Network or DoH resolver timeout causing lookup failure
- Invalid or malformed domain input
- Rate limit or payment failure at $0.01 per call

## How this service works

AAAA record of internal.<domain>: looks up the internal host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like internal without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the AAAA record for internal.<domain> exists, the IPv6 address(es) associated with it, and the TTL of the record as resolved via Cloudflare DNS over HTTPS.

## 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-aaaa-internal-subdomain-a96369fd/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)