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RelayShield Infostealer Email Lookup
x402
RelayShield Infostealer Email Lookup is a paid API for AI agents from api.relayshield.net, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-27).
Checks whether a given email address appears in infostealer malware logs, returning matched stealer records and a count
Price / call$0.15
Success—
StatusUnknown
How this service works
Identity security, threat monitoring and intelligence for the agentic AI era. TAP verifier for agentic commerce, MCP Proxy Firewall for AI agents, and threat intelligence APIs backed by 725K indicators across 129 monitored marketplaces.
Output
Returns a JSON object with an 'ok' flag, the queried email, a boolean 'found' field indicating presence in infostealer logs, an array of matched stealer records ('stealers'), and a 'stealer_count' integer showing how many stealer logs matched.
Example use cases
Personal account compromise check
“I want to know if my email address sarah.jones@gmail.com has been picked up by any infostealer malware — can you check the RelayShield database for me?”
Security audit for employee emails
“We had a potential malware incident at work — can you check whether the email m.torres@mycompany.com appears in any infostealer logs so I can assess the exposure?”
Pre-onboarding credential risk check
“Before we give this contractor access to our systems, can you verify if their email alex.nguyen@freelancer.io has been harvested by any infostealer malware?”
Technical details
Endpoint
POSThttps://api.relayshield.net/v1/payg/infostealer?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to check whether a specific email address appears in infostealer malware logs — particularly for threat intelligence, account security audits, or credential exposure monitoring. Prefer this over general data breach lookup services (like HaveIBeenPwned) when you specifically need infostealer-sourced compromise data rather than breach dump data.
Side effects
- Invalid or malformed email address returns an error or empty result
- Email not found returns found:false with an empty stealers array — not an error
- Service unavailable or timeout if the stealer database is unreachable
- Missing or invalid payment header results in 402 payment required
- Rate limiting may occur for high-volume queries
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string | Email address to check for infostealer compromise |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"email": "user@example.com",
"found": false,
"stealers": [],
"stealer_count": 0
}
}
}Tags
x402
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