# dns-aaaa-docs-subdomain

> dns-aaaa-docs-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 docs subdomain of a given domain via Cloudflare DoH, reporting existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/docs/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-docs-subdomain-4b83ad9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HHk9VWfgsdqDKkUO9OSLr

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-docs-subdomain-4b83ad9a
```

Example prompt: Can you check if docs.acmecorp.com has an IPv6 DNS record — I want to know if the docs subdomain exists and what its AAAA record and TTL look like?

## When to prefer this

Use this endpoint when you need a fast, single-purpose check of whether the docs subdomain of a specific domain has IPv6 (AAAA) DNS coverage, without enumerating subdomains broadly. Prefer it over general DNS tools when you specifically want the docs host, want Cloudflare DoH as the resolver, and need a pay-per-use microservice that is cheap and stateless.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with no records
- docs subdomain not configured — returns NOERROR with empty answer section
- Invalid domain name format — may return error or empty result
- Network timeout reaching Cloudflare DoH — service unavailable error
- Payment not processed (x402) — request rejected before DNS lookup

## How this service works

AAAA record of docs.<domain>: looks up the docs 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 docs without enumerating subdomains. $0.01 per lookup.

## Output

Returns whether the docs.<domain> host exists in DNS, its AAAA (IPv6) record(s) and associated TTL, and the DNS response code — all 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-docs-subdomain-4b83ad9a/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)