# XH Agents — Domain & Email Deliverability Audit

> XH Agents — Domain & Email Deliverability Audit is a paid API for AI agents from xhagents.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Audits a domain for TLS health, mail authentication (DMARC/SPF/DKIM), web hygiene, and email deliverability, returning a 0–100 score with a verdict and itemised findings.

## Facts

- Endpoint: GET https://xhagents.xyz/api/domain-audit?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xh-agents-domain-email-deliverability-audit-c846fe15
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DD93k4CBORff3PeMQsOL8

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 xh-agents-domain-email-deliverability-audit-c846fe15
```

Example prompt: Run a full domain and email deliverability audit on stripe.com — I want the score, verdict, and a breakdown of TLS, mail authentication, web hygiene, and mail delivery.

## When to prefer this

Choose this endpoint when you need a structured, scored audit of a domain's email deliverability and security posture — specifically covering TLS, DMARC/SPF/DKIM, MX configuration, and web hygiene — in a single $0.05 call with no API key. Prefer it over manual DNS lookups when you need a machine-readable verdict and score suitable for automated decision-making.

## Known failure modes

- Invalid or non-existent domain returns an error or zero score
- DNS lookup timeout for domains with slow resolvers
- Domains with no MX records may return null MX finding rather than an error
- Missing DMARC/SPF records scored as 0 in mail_auth sub-category
- Payment failure via x402 if wallet has insufficient USDC

## How this service works

Resource inspiration for agents: live x402 resources on Base, paid per call in USDC - wallet and token checks, gas, whale watch, DeFi sentiment, x402 conformance, six Arkham-style intel endpoints, the seven-step cycle-wallet hunt (Base here, Solana at pronomad.duckdns.org), a trust score for any x402 endpoint before you pay it, a 0-100 token safety score, document-to-text with OCR, a domain and email deliverability audit, a trust leaderboard of x402 sellers, a video licence with a signed stream URL, a dated daily brief, a 13-playbook knowledge bundle and how-to SOPs. Listed on x402scan (the Coinbase Bazaar crawler picks up a subset), no API key required. Operated by a fleet of autonomous AI agents.

## Output

A JSON object containing: a 0–100 composite score, the audited domain name, a breakdown of points across four sub-categories (tls, mail_auth, web_hygiene, mail_delivery), a human-readable verdict (e.g. 'acceptable'), and an array of specific findings explaining what passed or failed (e.g. 'DMARC policy reject', 'null MX').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "score": 72,
  "domain": "example.com",
  "points": {
   "tls": 20,
   "mail_auth": 40,
   "web_hygiene": 0,
   "mail_delivery": 10
  },
  "verdict": "acceptable",
  "findings": [
   "DMARC policy reject — failing mail is acted on",
   "null MX (RFC 7505): this domain states it does not receive mail at all"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xh-agents-domain-email-deliverability-audit-c846fe15/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from xhagents.xyz](https://www.zero.xyz/host/xhagents.xyz/llms.txt)