# dns-mx-via-adguard

> dns-mx-via-adguard 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 MX records for a domain using AdGuard DNS over HTTPS, returning records, TTL, response code, DNSSEC validation status, and resolver answer time.

## Facts

- Endpoint: GET https://dns.intel.rallylive.ca/dns/mx/via/adguard?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-mx-via-adguard-fcd969b9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_97nMrWFe9ACwsYMh0zUlE

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-mx-via-adguard-fcd969b9
```

Example prompt: Can you look up the MX records for example.com using AdGuard DNS and tell me the records, TTL, response code, whether DNSSEC was validated, and how fast the resolver answered?

## When to prefer this

Choose this endpoint when you specifically need MX record data as seen by AdGuard DNS, particularly to compare resolver behavior, detect DNS filtering, check propagation lag across resolvers, or audit DNSSEC validation status from AdGuard's perspective. It is ideal for cross-resolver comparison workflows or when investigating email routing issues attributed to AdGuard-filtered networks.

## Known failure modes

- NXDOMAIN response if the domain does not exist
- SERVFAIL if the resolver encounters an upstream error or DNSSEC validation failure
- Empty MX record set if the domain has no MX records configured
- Timeout or network error if AdGuard DNS is temporarily unreachable
- Filtering by AdGuard may suppress or alter records for blocked domains

## How this service works

MX records for a domain as answered by AdGuard DNS (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to spot propagation lag, filtering or split-horizon answers. $0.01 per lookup.

## Output

Returns the MX records (priority and mail server hostname), TTL in seconds, DNS response code (NOERROR, NXDOMAIN, or SERVFAIL), a boolean indicating whether the AdGuard resolver validated DNSSEC, and the resolver's answer time in milliseconds.

## 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-mx-via-adguard-fcd969b9/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)