# DNS TXT Record Lookup for support Subdomain

> DNS TXT Record Lookup for support 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 TXT DNS record for the support.<domain> subdomain via Cloudflare DoH and returns existence, records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/support/txt?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-txt-record-lookup-for-support-subdomain-5086f15b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Azt020NuEynMVceBF5ROR

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-support-subdomain-5086f15b
```

Example prompt: Can you check whether github.com has a TXT record configured for its support subdomain, and tell me what the record says and its TTL?

## When to prefer this

Use this endpoint when you need a quick, targeted check of whether the support subdomain of a given domain has TXT records configured, without doing full subdomain enumeration. Ideal for infrastructure audits, helpdesk verification, or domain reconnaissance focused specifically on the support host via Cloudflare DoH.

## Known failure modes

- Domain does not exist — NXDOMAIN response indicating no such domain
- support subdomain has no TXT records — record exists check returns false
- Invalid or malformed domain input causing resolution failure
- Cloudflare DoH upstream timeout or error
- Network connectivity issues reaching dns.intel.rallylive.ca

## How this service works

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

## Output

Returns whether the support.<domain> TXT record exists, the content of any TXT records found, and the TTL value, as resolved by Cloudflare DNS over HTTPS.

## 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-support-subdomain-5086f15b/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)