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PayAI Domain Trust Score
x402
PayAI Domain Trust Score is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-10).
Returns a composite trust score and category verdict for a domain by fusing registration age, DNS/mail posture, TLS validity, Certificate Transparency history, and typosquat/homoglyph analysis.
Price / call$0.02
Success—
StatusUnknown
How this service works
Phishing/trust verdict for a website domain before an agent transacts with an unfamiliar merchant. Fuses registration age (RDAP), DNS/mail posture (SPF, DMARC, DNSSEC), TLS validity, Certificate Transparency history and a typosquat/homoglyph analysis into a composite trust score 0-100, a category (trusted / caution / untrusted / unknown), per-dimension flags and reasons. Trust indicators, not a guarantee.
Output
A composite trust score from 0 to 100, a categorical verdict (trusted, caution, untrusted, or unknown), per-dimension flags covering registration age, SPF/DMARC/DNSSEC posture, TLS validity, Certificate Transparency history, and typosquat/homoglyph analysis, plus human-readable reasons for each flag.
Example use cases
Verify merchant legitimacy before checkout
“I'm about to place an order with a new seller at theirstore-online.net. Can you check if their domain looks trustworthy and let me know if there are any red flags I should be aware of before entering my payment info?”
Screen supplier domains for business deals
“My team is considering using a new B2B supplier at industrial-solutions-global.com. Can you do a domain trust assessment and tell me if there are any security concerns with their website before we sign a contract?”
Detect phishing attempts in email links
“I got an email from someone claiming to be from our bank at secure-banklogin-verify.com. Can you quickly check that domain and tell me if it looks legitimate or if it might be a phishing attempt?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/domain/trust?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent is about to transact with or recommend an unfamiliar merchant domain and needs a multi-signal trust assessment before proceeding. Ideal for pre-payment due diligence, phishing detection pipelines, or any workflow where domain legitimacy matters. Prefer over simple WHOIS lookups because it fuses multiple trust dimensions into a single actionable score.
Side effects
- Domain not resolvable or not found — returns unknown category with explanation
- Invalid domain format input — returns 400-level error
- RDAP/DNS lookups timeout — partial results with missing dimension flags
- Typosquat analysis inconclusive for uncommon TLDs
- Rate limiting or payment failure for x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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