# VerifyPulse Domain Health Check

> VerifyPulse Domain Health Check is a paid API for AI agents from verifypulse-seven.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Checks the email deliverability health of a domain by validating its DNS MX records and returning a health score

## Facts

- Endpoint: GET https://verifypulse-seven.vercel.app/v1/x402/domain-health?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verifypulse-domain-health-check-8e413798
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L3P6jtaGZxtKQ5iCkyPJO

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 verifypulse-domain-health-check-8e413798
```

Example prompt: Can you check whether github.com is healthy for email delivery — does it have valid MX records and a good domain health score?

## When to prefer this

Use this endpoint when you need a fast, lightweight domain-level email deliverability check without submitting a full email address. Ideal for pre-screening company domains in bulk outreach lists, validating CRM records, or checking whether a domain's mail infrastructure is live before sending. Prefer this over full email verification when you only have a domain (not a specific address) or want to triage domains before running more expensive per-address checks.

## Known failure modes

- Domain not found or does not exist — may return low score or unhealthy status
- No MX records configured — domain marked as unhealthy
- Network timeout during live DNS resolution — call may fail or return degraded result
- Invalid domain format supplied as query parameter — request rejected
- Payment not provided or insufficient — 402 Payment Required response

## How this service works

VerifyPulse is a high-speed B2B email verification engine. Validate RFC syntax, resolve live DNS MX records, filter 3,800+ disposable domains, and run simulated SMTP handshakes in sub-140ms. Stop bounces before sending.

## Output

Returns a JSON object with the domain name, a numeric health score (0-100), and a boolean 'healthy' flag indicating whether the domain has valid, active email infrastructure.

## 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",
     "properties": {
      "domain": {
       "type": "string",
       "description": "Parameter domain (e.g. github.com)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "score": 100,
  "domain": "github.com",
  "healthy": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verifypulse-domain-health-check-8e413798/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from verifypulse-seven.vercel.app](https://www.zero.xyz/host/verifypulse-seven.vercel.app/llms.txt)