LayerCall
com.layercall/trust-api · v1.0.0 · MCP 2025-06-18
Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.
Reachability
reachable
checked 2026-08-05 05:30 UTC
Registry status active
Tools pinned 7
0a4deff71535
Tools last changed
unchanged since first capture 2026-08-05
Provenance
Registry namespace com.layercall
(domain verified by the official registry)
Repository
github.com/layercall/layercall-sdk
Remote endpoints
https://www.layercall.com/api/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-08-05 05:30 | first capture | 7 tools pinned |
Pinned tool definitions (7)
| Tool | Description |
|---|---|
| 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 and a 0-100 risk score with an... |
| 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 — treat that as unknown, not as 'established'. |
| 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 — the declared signals it relies on... |
| 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 purpose. This is the only check here... |
| 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 is never averaged away. This is the... |
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