# dns-txt-forum-subdomain

> dns-txt-forum-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 'forum' subdomain of a given domain via Cloudflare DNS over HTTPS and returns whether it exists, its records, and TTL.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/host/forum/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-forum-subdomain-9bd4bdde
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hWRO3noeBUnjZsEuFtZ2z

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-forum-subdomain-9bd4bdde
```

Example prompt: Can you check if there's a TXT DNS record configured on the forum subdomain of example.com — I want to know if it exists and what the TTL is?

## When to prefer this

Use this endpoint when you need a quick, targeted existence check for a TXT DNS record on the 'forum' subdomain specifically, without enumerating all subdomains. Prefer this over general DNS APIs when you need low-cost ($0.01/call), single-purpose lookups resolved via Cloudflare DoH for reliability and consistency with other sibling subdomain checks on the same provider.

## Known failure modes

- Domain does not exist — returns NXDOMAIN response code with no records
- forum subdomain has no TXT record — returns empty record set with NOERROR
- Invalid or malformed domain input — may return error or unexpected response
- Cloudflare DoH unavailable — request may time out or return service error
- Rate limiting or payment failure — 402 error if payment not processed

## How this service works

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

## Output

Returns whether the TXT record for forum.<domain> exists, the record content(s), the TTL, and the DNS response code as answered 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-forum-subdomain-9bd4bdde/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)