Hyrule Cloud MX Check

x402

Hyrule Cloud MX Check is a paid API for AI agents from cloud.hyrule.host, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-28).

Checks mail exchanger (MX) DNS records and related email infrastructure for a domain, with optional diagnostics for SMTP, SPF, DKIM, DMARC, blacklists, and more.

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

Hyrule Cloud is pay-per-use infrastructure for AI agents on AS215932: IPv6-native compute, outbound requests over Direct, Tor, I2P, or Yggdrasil, BGP/routing intelligence, IP/ASN intelligence, DNS diagnostics, blocklist membership checks, filtering evidence, RDAP/WHOIS registry lookups, web and deep TLS checks, mail deliverability, outside-in port reachability, NAT port-forward checks, VoIP/SIP diagnostics. Calls settle in USDC via x402. Domain registration is deferred from this launch catalog. This OpenAPI document contains the launch-ready, independently payable agent surface plus the free supporting routes (quotes, status polling, pricing, template catalog) required to complete those workflows.

Output

Returns a structured JSON response containing the tool used, target domain, status, a human-readable summary, an array of findings (issues or observations), optional raw DNS/SMTP data, and improvement recommendations. Includes a unique request ID and generation timestamp.

Example use cases

Email deliverability pre-send audit

“Before I send this campaign, check the MX records and email infrastructure for mycompany.com — I want to know if there are any blacklist hits, missing SPF or DMARC records, or SMTP issues I should fix first.”

New domain mail setup verification

“I just set up email for startup.io — can you verify that the MX records are resolving correctly and give me any recommendations on what else I need to configure for good deliverability?”

Investigate bounced email complaints

“We're getting reports that emails from clientdomain.com aren't reaching us — can you run an MX check on clientdomain.com and tell me if their mail server setup looks broken or misconfigured?”

Technical details

Endpoint

POSThttps://cloud.hyrule.host/v1/mx/check?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need programmatic, pay-per-use MX and email infrastructure checks without managing your own DNS resolution infrastructure. Particularly useful for agents needing to validate mail setup, audit deliverability, or diagnose SMTP issues across arbitrary domains on demand. Prefer over manual DNS tools when you also need blacklist checks, DMARC/SPF/DKIM analysis, and recommendations bundled in a single call.

Side effects

Domain does not exist or has no MX records — returns status indicating no records found
SMTP timeout if mail server is slow or unresponsive — controlled via timeout_ms option
Invalid domain format in target field — returns validation error
DKIM selector not found for the specified selector name — finding returned with failure status
Network unreachable for target host — returns error status in response
Payment not accepted or insufficient USDC balance — HTTP 402 returned before check runs

Input

Schema · Request body

Field	Type	Description
tool	—
target	—
command	—	SuperTool-compatible command, e.g. mx:example.com or blacklist:8.8.8.8
options	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "tool": "mx",
    "status": "ok",
    "target": "example.com",
    "sources": {},
    "summary": "Mail exchanger records resolved",
    "findings": [],
    "request_id": "mx_a1b2c3d4",
    "generated_at": "2026-07-15T00:00:00Z"
  }
}

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