# Suverse MX DNS Lookup

> Suverse MX DNS Lookup is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Resolves MX (mail server) records for a given domain via Google DNS-over-HTTPS, returning mail host names and their priorities.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-net-dns-mx
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-mx-dns-lookup-fb5d39c8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dlqt8VNt03yakKBSD73wJ

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 suverse-mx-dns-lookup-fb5d39c8 -d '<json body>'
```

Example prompt: Can you look up the MX records for gmail.com and tell me which mail servers are configured and their priority values?

## When to prefer this

Choose this endpoint when you need a keyless, no-signup MX record lookup routed through Google DNS-over-HTTPS for email routing verification or deliverability checks — especially useful in agentic workflows where provisioning Google API credentials is impractical and a $0.001 micropayment per call is acceptable.

## Known failure modes

- Domain does not exist or has no MX records — returns empty result or NXDOMAIN
- Malformed domain input — may return error or empty response
- Temporary DNS resolution failure from upstream Google DoH service
- Rate limiting or payment failure on the x402 micropayment layer

## How this service works

Resolve a domain's MX (mail server) records via keyless Google DNS-over-HTTPS. Returns priority and mail host data. For agents checking email routing and deliverability.

## Output

Returns a list of MX records for the queried domain, each containing the mail host hostname and its numeric priority value (lower = higher priority), sourced from Google DNS-over-HTTPS without requiring API keys.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "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/suverse-mx-dns-lookup-fb5d39c8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)