# DNS A Record Lookup for mysql Subdomain

> DNS A Record Lookup for 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 A record for the mysql.<domain> subdomain via Cloudflare DoH and reports existence, IP records, and TTL

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/mysql/a?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-a-record-lookup-for-mysql-subdomain-1419c4e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4wCdCM6lY1OBUtZ-O1r83

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-record-lookup-for-mysql-subdomain-1419c4e5
```

Example prompt: Can you check whether mysql.rallylive.ca has an A record configured — I want to know if the MySQL subdomain exists and what IP it resolves to?

## When to prefer this

Use this endpoint when you need a fast, targeted existence check for the mysql subdomain of a specific domain without performing full subdomain enumeration. Ideal for infrastructure audits, security reconnaissance, deployment validation, or any workflow needing to confirm whether a MySQL host is DNS-configured under a given domain.

## Known failure modes

- Domain does not have a mysql subdomain — no A record returned
- Invalid or malformed domain name input
- Cloudflare DoH upstream timeout or failure
- NXDOMAIN response when the parent domain itself does not exist
- Rate limiting or payment failure for the $0.01 per-call fee

## How this service works

A record of mysql.<domain>: looks up the mysql host under the domain you give (A 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 mysql.<domain> A record exists, the resolved IP address(es), and the TTL of the record as returned by Cloudflare DoH. If the subdomain does not exist, the response indicates no record found.

## 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-record-lookup-for-mysql-subdomain-1419c4e5/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)