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ShieldAPI Domain Reputation Check
x402
ShieldAPI Domain Reputation Check is a paid API for AI agents from shield.vainplex.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Checks a domain name for security reputation, DNS records, SSL status, and blacklist presence to assess risk level for agent security decisions
Price / call$0.003
Success—
StatusUnknown
How this service works
ShieldAPI - x402 security preflight before agents trust a domain, merchant, issuer, or callback host
Output
Returns a structured object with the domain's DNS records (A, MX, NS, TXT), SPF and DMARC presence, SSL validity and HTTP status, results from multiple spam/malware blacklists (Spamhaus, SpamCop, SORBS), a numeric risk score, and a categorical risk level (e.g. 'low', 'medium', 'high').
Example use cases
Example prompt
“Can you check whether vainplex.dev is a safe, reputable domain — I want to know its risk score, whether it's on any blacklists, and if its DNS and SSL look legitimate?”
Technical details
Endpoint
GEThttps://shield.vainplex.dev/api/cdp/check-domainWhen to prefer
Use this endpoint when an AI agent needs to assess whether a domain is safe before interacting with it, following links, sending emails, or making API calls — especially useful for pre-flight security checks in agentic workflows. Prefer this over IP reputation checks when you have a hostname rather than a raw IP, and over URL safety checks when you want DNS-level and blacklist intelligence rather than page content analysis.
Side effects
- Invalid or malformed domain name returns an error
- Domain with no DNS records may return empty DNS fields
- Blacklist resolver errors are noted in the response but don't block results
- Network timeout if DNS resolution takes too long
- Non-existent TLD or private/internal domains may return incomplete data
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"domain": "google.com"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"dns": {
"a": [
"142.251.20.138",
"142.251.20.113",
"142.251.20.102",
"142.251.20.139",
"142.251.20.101",
"142.251.20.100"
],
"mx": [
{
"exchange": "smtp.google.com",
"priority": 10
}
],
"ns": [
"ns1.google.com",
"ns3.google.com",
"ns2.google.com",
"ns4.google.com"
],
"txt": [
[
"v=spf1 include:_spf.google.com ~all"
],
[
"google-site-verification=4ibFUgB-wXLQ_S7vsXVomSTVamuOXBiVAzpR5IZ87D0"
],
[
"MS=E4A68B9AB2BB9670BCE15412F62916164C0B20BB"
],
[
"docusign=05958488-4752-4ef2-95eb-aa7ba8a3bd0e"
],
[
"google-site-verification=TV9-DBe4R80X4v0M4U_bd_J9cpOJM0nikft0jAgjmsQ"
],
[
"onetrust-domain-verification=0d477fe608074e6f9c12bca7826035cc"
],
[
"globalsign-smime-dv=CDYX+XFHUw2wml6/Gb8+59BsH31KzUr6c1l2BPvqKX8="
],
[
"docusign=1b0a6754-49b1-4db5-8540-d2c12664b289"
],
[
"apple-domain-verification=30afIBcvSuDV2PLX"
],
[
"google-site-verification=wD8N7i1JTNTkezJ49swvWW48f8_9xveREV4oB-0Hf5o"
],
[
"facebook-domain-verification=22rm551cu4k0ab0bxsw536tlds4h95"
],
[
"onetrust-domain-verification=6d685f1d41a94696ad7ef771f68993e0"
],
[
"cisco-ci-domain-verification=47c38bc8c4b74b7233e9053220c1bbe76bcc1cd33c7acf7acd36cd6a5332004b"
]
],
"has_spf": true,
"has_dmarc": true,
"has_records": true
},
"ssl": {
"valid": true,
"status": 301
},
"domain": "google.com",
"blacklists": [
{
"list": "zen.spamhaus.org",
"note": "resolver-error-code",
"listed": false
},
{
"list": "bl.spamcop.net",
"listed": false
},
{
"list": "dnsbl.sorbs.net",
"listed": false
}
],
"risk_level": "low",
"risk_score": 0
}Tags
x402
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