agentsvc.io Domain Check

x402

agentsvc.io Domain Check is a paid API for AI agents from agentsvc.io, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-10).

Checks a domain's DNS records, WHOIS/RDAP registration details, and email security posture (SPF, DMARC, DKIM) in a single call

Price / call$0.009

Seller volume →—

Success—

StatusUnknown

How this service works

86 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search and more, paid per call with USDC on Base, Solana, Polygon or Arbitrum via x402. No account, no API key, free sample on every service.

Output

Returns a JSON object with: DNS records (A, MX, CAA, nameservers, DNSSEC status), registration details (registrar, created/expires/updated dates, registration status flags, availability likelihood), and email security data (SPF record, DMARC policy, DKIM selectors found, overall grade A–F, numeric score 0–100, and specific findings like missing DNSSEC).

Example use cases

Vetting a supplier's domain legitimacy

“Before we wire payment to this vendor, can you check their domain acme-supplies.com — is it properly registered, who owns it, and does it have solid email security like DMARC and SPF set up?”

Pre-launch email deliverability audit

“We're about to launch our newsletter from startupname.io — can you check whether our SPF, DMARC, and DKIM records are correctly configured so our emails won't land in spam?”

Researching a competitor's infrastructure

“Can you pull up the DNS and registration details for competitor.com? I want to know their nameservers, MX provider, when the domain expires, and what their email security grade is.”

Technical details

Endpoint

POSThttps://agentsvc.io/api/v1/proxy/domain-check?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a comprehensive single-call domain health report combining DNS, registration, and email security data — especially useful for due diligence, pre-send email audits, or domain availability research. It's paid per-call with no account setup required, making it ideal for ad-hoc or agent-driven lookups. Prefer it over manual WHOIS or separate DNS tools when you want a structured JSON response covering all three domains of information at once.

Side effects

Domain not found or malformed input returns empty or error response
RDAP/WHOIS lookup may be rate-limited or unavailable for some TLDs
DKIM selector detection is heuristic and may miss custom selectors
Payment failure (insufficient USDC balance) blocks the call
Very new domains may not yet have propagated DNS or registration data

Input

Schema · Request body

Field	Type	Description
domain	string	Domain name, e.g. example.com

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": {
      "dns": {
        "a": [
          "140.82.121.3"
        ],
        "mx": [
          {
            "exchange": "github-com.mail.protection.outlook.com",
            "priority": 0
          }
        ],
        "caa": [
          {
            "issue": "digicert.com",
            "critical": 0
          }
        ],
        "dnssec": false,
        "nameservers": [
          "dns1.p08.nsone.net"
        ]
      },
      "domain": "github.com",
      "checked_at": "2026-10-06T14:30:56.904Z",
      "registration": {
        "method": "rdap",
        "status": [
          "client delete prohibited"
        ],
        "created": "2007-10-09",
        "expires": "2028-10-09",
        "updated": "2026-09-07",
        "registrar": "MarkMonitor Inc.",
        "registered": true,
        "nameservers": [
          "dns1.p08.nsone.net"
        ],
        "likely_available": false
      },
      "email_security": {
        "spf": "v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblo...",
        "dmarc": "v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=...",
        "grade": "A",
        "score": 95,
        "findings": [
          "DNSSEC not enabled"
        ],
        "dmarc_policy": "quarantine",
        "dkim_selectors_found": [
          "google"
        ]
      }
    },
    "success": true
  }
}

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