# DNS TXT Record Lookup for mysql Subdomain

> DNS TXT 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 2026-10-19).

Looks up the TXT DNS record for the mysql.<domain> subdomain via Cloudflare DoH and returns whether it exists, its records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/mysql/txt?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-txt-record-lookup-for-mysql-subdomain-3fabc55d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SwbTuvxU7CeqB1nM2NRcH

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-txt-record-lookup-for-mysql-subdomain-3fabc55d
```

Example prompt: Can you check if there's a TXT DNS record for the mysql subdomain of example.com — does it exist, and what does it say?

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.01) single-purpose check for whether a mysql.<domain> TXT DNS record exists, without needing to enumerate all subdomains. Ideal for domain audits, infrastructure reconnaissance, or verifying MySQL-related DNS configuration for a specific domain. Prefer this over general DNS tools when you specifically want the mysql host TXT record via Cloudflare DoH.

## Known failure modes

- Domain does not exist — returns not found or NXDOMAIN equivalent
- mysql subdomain has no TXT record — returns exists: false with empty records
- Invalid domain format — may return an error or empty result
- Cloudflare DoH upstream timeout — service may return an error
- Network or payment failure — 402 or 5xx error returned

## How this service works

TXT record of mysql.<domain>: looks up the mysql host under the domain you give (TXT 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> TXT DNS record exists, the content of the TXT record(s) if present, and the TTL value. Uses Cloudflare's DNS over HTTPS for resolution.

## 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-txt-record-lookup-for-mysql-subdomain-3fabc55d/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)