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VerifyPulse Domain Health Check
x402
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
Price / call$0.01
Success—
StatusUnknown
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.
Example use cases
Pre-send domain screening for cold outreach
“Before I send this cold email campaign, can you check domain health for salesforce.com and hubspot.com to make sure they have valid mail servers and won't bounce?”
CRM data quality audit
“I'm cleaning up our leads database — can you check if the domain stripe.com is healthy and actually set up to receive email, so I know whether to keep those contacts?”
Real-time signup validation
“A user just signed up with a company email at notion.so — can you quickly verify that domain is healthy and has working MX records before we send them a welcome email?”
Technical details
Endpoint
GEThttps://verifypulse-seven.vercel.app/v1/x402/domain-health?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"score": 100,
"domain": "github.com",
"healthy": true
}
}Tags
x402
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