# 402oracle.com Business Domain Verification

> 402oracle.com Business Domain Verification is a paid API for AI agents from 402oracle.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-10).

Verifies a business or domain is real and established by checking RDAP registration age, DNS records, email posture, and HTTPS reachability, returning a signed attestation with a 0-100 trust score.

## Facts

- Endpoint: POST https://402oracle.com/verify/business?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402oracle-com-business-domain-verification-ab2da651
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DSlS44AFng18jCPbNH3vW

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 402oracle-com-business-domain-verification-ab2da651 -d '<json body>'
```

Example prompt: Before we pay this invoice from acmesupplies.io, can you run a trust check on that domain — I want to see the registration age, DNS records, SPF/DMARC posture, and an overall trust score to make sure it's a real, established business?

## When to prefer this

Use this endpoint when an AI agent needs to vet a business domain before making a payment, onboarding a vendor, or trusting an invoice — especially when you need a signed, evidence-backed attestation rather than a raw lookup. Prefer this over generic WHOIS tools when you need a composite trust score combining domain age, DNS health, email security, and HTTPS reachability in a single verifiable response. Ideal for autonomous payment agents operating under the x402 protocol.

## Known failure modes

- Domain does not exist or has no RDAP record — low trust score returned with missing evidence
- HTTPS endpoint unreachable — reachability check fails, score penalized
- DNS records absent or misconfigured — flagged in attestation
- Invalid or malformed domain input — request rejected with validation error
- Payment not received or insufficient USDC — 402 payment required error
- Rate limiting or timeout on external DNS/RDAP lookups — partial result or retry needed

## How this service works

Is this company or domain legit? Business and domain verification (KYB) for vendor screening, supplier checks and scam or fraud review: domain age and registrar from RDAP, DNS (A/MX/NS), email security (SPF/DMARC) and HTTPS. Returns a verdict and a 0-100 trust score with evidence URLs, and flags newly registered or thin-infrastructure domains, a common scam signal. Use it before your agent pays an invoice, onboards a vendor or trusts a site. Signed attestation. Bulk: /verify/business/batch.

## Output

A signed attestation object containing a 0-100 trust score, domain registration age (via RDAP), DNS record findings (A, MX, NS), email security posture (SPF and DMARC status), HTTPS reachability result, and evidence URLs supporting each check.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "description": "Domain to verify, e.g. example.com"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "signature": {
   "alg": "ES256",
   "jwks": "/.well-known/jwks.json"
  },
  "attestation": {
   "type": "business_verification",
   "result": {
    "score": 82,
    "verdict": "established",
    "registrar": "GoDaddy.com, LLC"
   },
   "subject": {
    "domain": "acme-supplies.com"
   },
   "confidence": 0.9
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/402oracle-com-business-domain-verification-ab2da651/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402oracle.com](https://www.zero.xyz/host/402oracle.com/llms.txt)