# URLTrust Domain Risk Scorer

> URLTrust Domain Risk Scorer is a paid API for AI agents from urltrust.openverbs.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).

Scores a domain's trustworthiness 0-100 using live RDAP registration data, DNS signals, MX presence, and DNSSEC to produce a phishing/fraud risk verdict

## Facts

- Endpoint: POST https://urltrust.openverbs.com/v1/domain
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/urltrust-domain-risk-scorer-0fadf2df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hlh3Lyjr8UWa6ooKuAXiI

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 urltrust-domain-risk-scorer-0fadf2df -d '<json body>'
```

Example prompt: Can you check how trustworthy the domain 'paypa1-secure-login.com' is? I want to know its risk score, how old it is, and whether it looks like a phishing site.

## When to prefer this

Choose this endpoint when you need live, authoritative signals about a domain's legitimacy rather than purely lexical/spelling-based analysis. It is especially valuable for detecting newly registered phishing domains (where domain age is the strongest signal), validating third-party vendor domains, or triaging suspicious links before user interaction. Pair with a lexical URL trust checker for complete phishing detection coverage. Prefer this over WHOIS scrapers when you need structured, parsed registration data with a ready-made risk score.

## Known failure modes

- Domain not found in RDAP — returns partial score based on available signals
- Invalid domain format (includes scheme or path) — validation error returned
- Domain too new to have RDAP data — age signal unavailable, score reflects uncertainty
- DNS lookup timeout — resolvability signal missing from score
- Unregistered/unresolvable domain — may score as high risk by default

## How this service works

Assess how trustworthy a domain is using authoritative live signals, not just its spelling. Fuses RDAP registration data (domain age — the single strongest phishing signal — plus registrar, expiry and registry status flags), DNS resolvability (A/AAAA), MX presence and DNSSEC into a 0-100 risk score with a verdict (low/medium/high) and the exact reasons. Pairs with `urltrust` (lexical) for a complete picture.

## Output

Returns a 0-100 numeric risk score and a categorical verdict (low/medium/high risk), along with the specific signals that drove the score: domain age from RDAP, registrar identity, expiry date, registry status flags, DNS A/AAAA resolvability, MX record presence, and DNSSEC configuration. Each contributing factor is explained so the caller understands exactly why the domain received its score.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "type": "object",
     "properties": {
      "domain": {
       "type": "string",
       "minLength": 1,
       "maxLength": 253,
       "description": "Registrable domain to score, e.g. \"example.com\" (no scheme or path)."
      }
     },
     "required": [
      "domain"
     ],
     "additionalProperties": false
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/urltrust-domain-risk-scorer-0fadf2df/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from urltrust.openverbs.com](https://www.zero.xyz/host/urltrust.openverbs.com/llms.txt)