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Email Header Analyzer & Phishing Detector
x402
Email Header Analyzer & Phishing Detector is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-16).
Parses raw email headers to extract sender/recipient/subject, trace server hops with delays, evaluate SPF/DKIM/DMARC authentication, detect spoofing signals, and return a phishing verdict.
Price / call$0.003
Success—
StatusUnknown
How this service works
Analyze raw email headers: sender, recipient, subject, server hops (Received) with delays, SPF/DKIM/DMARC results, Return-Path and Reply-To mismatches and spoofing signals, with a verdict. Investigate phishing or delivery issues. Nothing is stored.
Output
A JSON object with parsed email metadata (sender, recipient, subject, date, Message-ID), an array of server hops with timing, SPF/DKIM/DMARC authentication results, detected spoofing warnings (avisos), total delivery delay in seconds, and a verdict string (e.g. 'sospechoso' for suspicious). Nothing is stored server-side.
Example use cases
Phishing investigation for security team
“Our employee received a spoofed email pretending to be from HR — can you analyze these email headers and give me a verdict on whether it's phishing, including any Reply-To or Return-Path mismatches and the DKIM/DMARC results?”
Email deliverability troubleshooting
“My transactional emails are ending up in spam — can you analyze these raw headers and tell me if SPF, DKIM, and DMARC are passing, and show me the server hops with delays so I can figure out where the problem is?”
Spoofed sender domain detection
“I received an email that looks like it's from our CEO but something feels off — please parse these email headers and check if the sender domain is being spoofed, and flag any mismatch between the From, Reply-To, and Return-Path fields.”
Technical details
Endpoint
POSThttps://api.vextorium.com/cabeceras-email-pago?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a full forensic breakdown of raw email headers — including authentication chain (SPF/DKIM/DMARC), server hop timing, and spoofing signal detection — in a single stateless call. Prefer it over generic text analysis tools when investigating phishing, email impersonation, or deliverability issues where header-specific parsing and a phishing verdict are required.
Side effects
- Missing or malformed 'cabeceras' field returns a parsing error
- Headers with non-standard formatting may yield incomplete hop data
- Empty or truncated header strings may produce null fields in output
- Non-email-header text input may return null values across all fields
- Very short headers lacking authentication records return null SPF/DKIM/DMARC
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cabeceras | string |
Output
Schema · Response
{
"type": "json",
"example": {
"de": "Bank <security@bank-example.com>",
"para": null,
"fecha": null,
"asunto": "Verify your account",
"avisos": [
"DKIM: fail",
"DMARC: fail"
],
"saltos": [],
"reply_to": "support@other-domain.ru",
"veredicto": "sospechoso",
"message_id": null,
"return_path": null,
"autenticacion": {
"spf": "pass",
"dkim": "fail",
"dmarc": "fail"
},
"retraso_total_s": 0
}
}Tags
x402
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