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Email Reputation & Deliverability Check
x402
Email Reputation & Deliverability Check is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns detailed reputation data for an email address including deliverability status, quality score, and risk indicators.
Price / call$0.005
Success—
StatusUnknown
How this service works
Get detailed reputation data for an email address including deliverability, quality score, and risk indicators.
Output
Returns structured reputation data for the queried email address, including deliverability status (whether the address can receive mail), a quality score (numeric indicator of overall address health), and risk indicators such as whether the address is disposable, domain-level blacklisting, spam trap likelihood, or other fraud signals.
Example use cases
Email fraud screening at signup
“A new user just signed up with the email freeguy1337@mailnull.com — can you run a reputation check on it and tell me if it's a disposable address or has any fraud risk indicators before I create their account?”
Pre-campaign deliverability audit
“Before I send out this email campaign, can you check the reputation and deliverability score for newsletter@bigcorp.io so I know if it's likely to bounce or get flagged as risky?”
Lead quality validation for CRM
“I have a new sales lead who gave the email contact@startupxyz.net — can you pull its reputation data including quality score and any risk indicators so I can decide whether it's worth pursuing?”
Technical details
Endpoint
GEThttps://x402.orthogonal.com/email-reputation/v1When to prefer
Choose this endpoint when you need comprehensive email reputation data — including deliverability, quality scoring, and fraud/risk signals — in a single call, especially in agentic workflows where you need to make automated decisions (e.g. block signups, filter leads, pre-screen lists) based on email quality. It is well-suited for per-address lookups at low cost ($0.005/call) rather than bulk list validation.
Side effects
- Missing or malformed email query parameter returns a validation error
- Non-existent domain in email address may return low quality score or undeliverable status
- Rate limiting or payment failure (402) if USDC balance is insufficient
- Ambiguous results for newly created domains with no reputation history
- Some privacy-protected or catch-all domains may return inconclusive deliverability signals
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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