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100
MCP live MCP 2025-06-18 streamable-http

LayerCall

com.layercall/trust-api

Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.

Uptime
100.0%
1 direct probes · 30d
Response
1462ms
last probe
Tools
7
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://www.layercall.com/api/mcp

Tools · 7

score_ip

Risk-score an IPv4 or IPv6 address. Detects commercial VPNs (naming the provider where its own published list confirms it), proxies, Tor exit nodes and datacenter hosting, and returns geolocation, ASN…

verify_email

Check an email for syntax, MX records, disposable/throwaway providers, role accounts (info@, admin@), homograph lookalikes and domain age. Returns a 0-100 risk score and an allow/review/block verdict.

lookup_phone

Validate a phone number worldwide against its national numbering plan. Returns E.164, country, line type (mobile/fixed/VoIP/toll-free/premium) and a risk score. Works globally, not US-only.

score_domain

Profile a domain: registration date from RDAP, registrar, MX/SPF/DMARC configuration, disposable-mail and risky-TLD detection. newly_registered is null when the age genuinely could not be determined —…

score_device

Judge a browser fingerprint from /fp.js: headless detection, automation frameworks (Selenium, Puppeteer, Playwright), timezone-versus-IP mismatch and repeat-device history. Note the ceiling honestly —…

verify_agent

Cryptographically verify a Web Bot Auth signature (RFC 9421) — proof of WHICH agent is calling, not a guess from the user-agent. Returns verified true/false plus the agent's identity and declared purp…

score_user

Score an entire signup in one call — any combination of IP, email, phone and domain — returning a single weighted risk score, a verdict, and the top contributing signals. A hard block on any component…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "layercall": {
      "url": "https://www.layercall.com/api/mcp",
      "transport": "streamable-http"
    }
  }
}