# DNS TXT Record Lookup for m.<domain> Subdomain

> DNS TXT Record Lookup for m.<domain> 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 2026-10-22).

Looks up the TXT DNS record of the m.<domain> subdomain via Cloudflare DoH and reports its existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/m/txt?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dns-txt-record-lookup-for-m-domain-subdomain-763576ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__SnDE9i_ZwF-XnITqJ2SD

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-m-domain-subdomain-763576ad
```

Example prompt: Can you check if m.acmecorp.com has any TXT DNS records configured — I want to know if the m subdomain exists and what its TTL is?

## When to prefer this

Use this endpoint when you need a quick, low-cost existence check for the m subdomain TXT record of a specific domain without performing broad subdomain enumeration. Prefer it over full DNS enumeration tools when you only need to check this specific common host, and prefer it over generic DNS APIs when you want Cloudflare DoH resolution specifically with per-lookup pricing clarity.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with no records
- m subdomain has no TXT records — returns NOERROR but empty record set
- Malformed domain input — request fails or returns DNS error
- Cloudflare DoH unreachable — timeout or service error
- Payment not processed — x402 payment required error before lookup executes

## How this service works

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

## Output

Returns whether the m.<domain> subdomain exists in DNS, its TXT record values (if any), the TTL, and the DNS response code (e.g. NOERROR or NXDOMAIN) as answered by Cloudflare DoH.

## 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-m-domain-subdomain-763576ad/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)