# DNS AAAA Record Lookup for autodiscover Subdomain

> DNS AAAA Record Lookup for autodiscover 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 2026-10-21).

Looks up the AAAA (IPv6) DNS record for autodiscover.<domain> via Cloudflare DoH and returns existence status, records, and TTL

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/autodiscover/aaaa?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-aaaa-record-lookup-for-autodiscover-subdomain-9eb5fa9c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RufMoQJefWduwL61-I1Bi

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-record-lookup-for-autodiscover-subdomain-9eb5fa9c
```

Example prompt: Can you check if autodiscover.microsoft.com has an AAAA DNS record — I want to know its IPv6 address and TTL?

## When to prefer this

Use this endpoint when you need a quick, targeted check of whether the autodiscover subdomain of a given domain has an IPv6 (AAAA) DNS record, without performing broad subdomain enumeration. Ideal for email infrastructure auditing, migration validation, or IT diagnostics where you specifically need autodiscover IPv6 resolution via a privacy-respecting DoH resolver.

## Known failure modes

- Domain does not have an autodiscover subdomain — returns NXDOMAIN or empty records
- Domain exists but has no AAAA record (only A record) — returns no records found
- Invalid or malformed domain name input — may return an error or empty response
- Cloudflare DoH temporarily unavailable — lookup fails with a service error
- Rate limiting or payment failure — lookup not executed

## How this service works

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

## Output

Returns whether the autodiscover.<domain> host exists in DNS, its AAAA (IPv6) records if present, and the TTL of those records, 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-record-lookup-for-autodiscover-subdomain-9eb5fa9c/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)