# dns-cname-mysql-subdomain

> dns-cname-mysql-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 CNAME record for the mysql subdomain of a given domain via Cloudflare DoH and reports whether it exists, its records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/mysql/cname?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-cname-mysql-subdomain-ad5a8e46
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1wGYLgc-kVBphgOwu6RPs

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-cname-mysql-subdomain-ad5a8e46
```

Example prompt: Can you check if acme.com has a mysql subdomain configured — I want to know if there's a CNAME record for mysql.acme.com and what it points to?

## When to prefer this

Use this endpoint when you need a fast, single-purpose check for whether a specific domain has a mysql CNAME subdomain configured, without enumerating all subdomains. Ideal for infrastructure audits, tech stack reconnaissance, or pre-deployment checks where you already know the subdomain name (mysql) and just need to verify its DNS existence and target.

## Known failure modes

- Domain does not have a mysql CNAME record — returns not-found or empty result
- Invalid or malformed domain name input — may return an error or empty response
- DNS resolution timeout or Cloudflare DoH unavailability — service error
- Domain does not exist at all — NXDOMAIN response propagated

## How this service works

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

## Output

Returns whether the CNAME record for mysql.<domain> exists, the record value(s) it contains (i.e. what hostname it points to), and the TTL of the record. If the record does not exist, reports its absence.

## 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-cname-mysql-subdomain-ad5a8e46/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)