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RelayShield Domain Lookalike Checker
x402
RelayShield Domain Lookalike Checker is a paid API for AI agents from api.relayshield.net, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-27).
Checks a given domain against a set of candidate domains to find lookalike/typosquatting domains that could be used for phishing or brand abuse
Price / call$0.5
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 containing the queried domain, the timestamp of the check, a list of lookalike domain strings detected, the total count of lookalikes found, and the number of candidate domains that were checked during the scan.
Example use cases
Brand protection audit for startup
“We just launched brandnova.com — can you scan for any lookalike or typosquatting domains that could be used to impersonate us or phish our users?”
Phishing threat check before campaign
“Before we send out our email marketing campaign, can you check acme-bank.com for lookalike domains that bad actors might use to intercept our customers?”
Security monitoring for e-commerce site
“Run a lookalike domain scan on shopnova.com and tell me how many suspicious domains were found and what they are.”
Technical details
Endpoint
POSThttps://api.relayshield.net/v1/payg/domain?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to quickly identify typosquatting, homograph, or phishing-style lookalike domains targeting a specific domain. It is well-suited for brand protection, pre-launch security audits, or ongoing monitoring of domains susceptible to impersonation attacks. Prefer this over manual DNS enumeration tools when you need a programmatic, pay-per-use API with structured JSON output.
Side effects
- Invalid or malformed domain input returns an error
- Domain not resolvable or non-existent may return empty lookalikes
- Rate limiting or payment failure may block the request
- Candidate pool size may limit detection of all possible lookalikes
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Root domain to scan for lookalikes |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"domain": "acme.com",
"checked_at": "2026-05-19T10:00:00+00:00",
"lookalikes": [
{
"domain": "acrne.com"
},
{
"domain": "acme-login.com"
}
],
"lookalikes_found": 2,
"candidates_checked": 30
}
}
}Tags
x402
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