{"server":{"name":"com.layercall/trust-api","title":"LayerCall","$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","remotes":[{"url":"https://www.layercall.com/api/mcp","type":"streamable-http","headers":[{"name":"Authorization","isSecret":true,"isRequired":true,"description":"Bearer <your LayerCall API key>. Free key at https://www.layercall.com/get-key — 1,000 lookups a month, no card."}]}],"version":"1.0.0","repository":{"url":"https://github.com/LayerCall/layercall-sdk","source":"github"},"websiteUrl":"https://www.layercall.com/docs/mcp","description":"Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it."},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","isLatest":true,"updatedAt":"2026-08-04T13:14:28.004375Z","publishedAt":"2026-08-04T13:14:28.004375Z","statusChangedAt":"2026-08-04T13:14:28.004375Z"},"dev.protogrid/connectability":{"class":"R1","autonomous":true,"human_steps":[],"preferred":{"kind":"remote","idx":0},"remotes":[{"idx":0,"url":"https://www.layercall.com/api/mcp","transport":"streamable-http","templated":false,"headers":[{"name":"Authorization","required":true,"secret":true,"value":null,"secret_names":["TRUST_API_TOKEN"]}],"auth":{"type":"api_key","location":null,"secret_name":"TRUST_API_TOKEN","oauth":null},"protocol":{"supported_versions":["2025-06-18"],"stateless":true},"health":{"reachable":true,"uptime_30d":1,"latency_ms_p50":849,"consecutive_failures":0,"last_probe_at":"2026-10-19T22:34:32.250Z","last_ok_at":"2026-10-19T22:34:32.250Z"}}],"packages":[]},"dev.protogrid/tools":[{"name":"lookup_phone","title":"Validate a phone number","description":"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.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"},{"name":"score_device","title":"Score a device fingerprint","description":"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 are the first thing stealth tooling patches, so a clean result is weaker evidence than a dirty one.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"},{"name":"score_domain","title":"Score a domain","description":"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'.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"},{"name":"score_ip","title":"Score an IP address","description":"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 allow/review/block verdict.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"},{"name":"score_user","title":"Score a whole signup","description":"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 tool to use when judging a person rather than a value. Costs one lookup PER COMPONENT supplied, not one per call, so four identifiers cost four; the response reports the exact figure as billable_lookups, and cached components are refunded.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"},{"name":"verify_agent","title":"Verify a signed AI agent (Web Bot Auth)","description":"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 that proves rather than infers, so it carries no score and no verdict: a verified assistant acting for a real user is usually welcome, a verified scraper usually is not, and that policy is the caller's. Pass the request the agent made to YOU — the signature covers its method, authority and path.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"},{"name":"verify_email","title":"Verify an email address","description":"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.","annotations":null,"source":"probe","observed_at":"2026-10-19T22:34:32.250Z"}],"dev.protogrid/trust":{"score":97,"components":{"hygiene":100,"liveness":100,"freshness":85,"provenance":100},"drivers":["+repository","+namespace-matches-repo","+dns-namespace","+website","+reachable","+uptime-100%","~updated-76d-ago"],"flags":[],"blocked":false,"computed_at":"2026-10-19T22:36:37.560Z","disclaimer":"Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed."},"dev.protogrid/quality":{"score":79,"label":"good","components":{"auth":null,"hygiene":71,"protocol":75,"stability":100,"dependencies":null},"checks":[{"id":"protocol.modern","detail":"newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28","status":"warn","category":"protocol"},{"id":"protocol.stateless","detail":"only applies to 2026-07-28 servers","status":"na","category":"protocol"},{"id":"protocol.transport","detail":"streamable HTTP","status":"pass","category":"protocol"},{"id":"protocol.list_ttl","detail":"only applies to 2026-07-28 servers","status":"na","category":"protocol"},{"id":"auth.prm","detail":"no remote uses OAuth","status":"na","category":"auth"},{"id":"auth.as_metadata","detail":"no remote uses OAuth","status":"na","category":"auth"},{"id":"auth.cimd","detail":"no remote uses OAuth","status":"na","category":"auth"},{"id":"auth.secret_in_url","detail":"no templated URL","status":"na","category":"auth"},{"id":"tools.descriptions","detail":"every tool has a description","status":"pass","category":"hygiene"},{"id":"tools.description_length","detail":"descriptions are concise","status":"pass","category":"hygiene"},{"id":"tools.schemas","detail":"every tool has an object input schema","status":"pass","category":"hygiene"},{"id":"tools.annotations","detail":"no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones","status":"fail","category":"hygiene"},{"id":"tools.directory_hints","detail":"no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: score_device (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); verify_agent (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); score_user (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …","status":"fail","category":"hygiene"},{"id":"tools.token_cost","detail":"about 1,023 tokens to load every tool","status":"pass","category":"hygiene"},{"id":"tools.api_dump","detail":"tools are not a one-to-one API dump","status":"pass","category":"hygiene"},{"id":"stability.changes","detail":"no tool changes in 30 days","status":"pass","category":"stability"},{"id":"stability.rug_pull","detail":"no tool changed its meaning under the same name","status":"pass","category":"stability"},{"id":"deps.known_vulns","detail":"no npm or PyPI package","status":"na","category":"dependencies"},{"id":"deps.mcp_sdk_version","detail":"no npm or PyPI package","status":"na","category":"dependencies"},{"id":"deps.resolvable","detail":"no npm or PyPI package","status":"na","category":"dependencies"}],"drivers":["-tools.annotations","-tools.directory_hints","~protocol.modern"],"flags":[],"tool_count":7,"token_estimate":1023,"tools_hash":"5baf1e219d99c3354cbb6e03c356dd29","tools_changed_at":null,"computed_at":"2026-10-19T22:46:05.077Z","disclaimer":"Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed."},"dev.protogrid/identity":{"canonical_id":"com.layercall/trust-api","aliases":[],"alias_count":0,"repository_key":"github:layercall/layercall-sdk","owner":{"verified":false,"method":null,"since":null}}},"next_actions":[{"action":"list_tools","description":"Every current tool with input schemas","href":"/v1/servers/com.layercall%2Ftrust-api/tools","arguments":{"name":"com.layercall/trust-api"}},{"action":"get_connection","description":"Minimal connection block for the preferred remote or package","href":"/v1/servers/com.layercall%2Ftrust-api/connection?target=mcpServers","arguments":{"name":"com.layercall/trust-api","target":"mcpServers"}},{"action":"search","description":"Find other servers by intent","href":"/v1/search?q={query}","arguments":{"q":"{query}"}}]}