# DNS TXT Record Lookup for mobile Subdomain

> DNS TXT Record Lookup for mobile 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 TXT DNS record of mobile.<domain> via Cloudflare DNS over HTTPS and reports existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/mobile/txt?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-txt-record-lookup-for-mobile-subdomain-3e80aab6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZgXBn3tVC9EbQNllZ_XlK

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-mobile-subdomain-3e80aab6
```

Example prompt: Check whether mobile.acme.com has any TXT DNS records and tell me what they contain and their TTL.

## When to prefer this

Use this endpoint when you specifically need TXT records for the 'mobile' subdomain of a given domain, resolved via Cloudflare DoH. It is ideal for quick existence checks or DNS configuration audits of the mobile host without needing to enumerate all subdomains. Prefer this over full DNS enumeration tools when you only need a single known-common host's TXT records.

## Known failure modes

- Domain does not exist — NXDOMAIN response with no records returned
- mobile subdomain has no TXT records — exists but empty record set
- Invalid or malformed domain name causes query failure
- Cloudflare DoH service timeout or unavailability
- Missing required query parameter causes 400-level error

## How this service works

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

## Output

Returns whether the mobile.<domain> host exists in DNS, its TXT record values (if any), the TTL in seconds, and the DNS response code — all resolved via Cloudflare's DNS over HTTPS service.

## 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-mobile-subdomain-3e80aab6/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)