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MCP Server

Perimeter Watch

io.github.entradox/perimeter-watch-scanner
Security Public & reachable MCP 2025-11-25

What this MCP does

Performs passive domain-perimeter checks for certificate expiry, renewal status, dangling CNAME takeover risks, and lookalike domains.

Capabilities

Tools

6 tools
pw_health
Liveness check for the Perimeter Watch API. Returns ok, service, version. Call first to verify connectivity before pw_snapshot.
Read only Idempotent
Input schema 
{'type': 'object', 'title': 'pw_healthArguments', 'properties': {}}
pw_snapshot
Run a free one-time external-perimeter scan on a domain you control. Checks TLS certificate expiry, domain renewal status, dangling CNAME takeover risk, and CT-log lookalike domains. Returns a rating plus per-check detail. NOT idempotent (each call consumes rate limit); takes 20-60s; rate-limited to 3 scans per IP per 24h. Args: domain: the domain to scan (e.g. example.com) authority: MUST be true — attests you or your principal own/manage this domain. Scanning third-party domains without authority is prohibited. Scan takes 20-60s. Rate limit: 3/IP/24h.
Input schema 
{'type': 'object', 'title': 'pw_snapshotArguments', 'required': ['domain', 'authority'], 'properties': {'domain': {'type': 'string', 'title': 'Domain'}, 'authority': {'type': 'boolean', 'title': 'Authority'}}}
pw_stats
Service funnel counters: page views, snapshots run, paid registrations. Read-only.
Read only Idempotent
Input schema 
{'type': 'object', 'title': 'pw_statsArguments', 'properties': {}}
pw_watch_status
Check whether a domain is enrolled on a paid weekly monitoring plan. Returns enrollment status. Paid plans add weekly re-scans with email briefs. Read-only lookup. Args: domain: the domain to look up (e.g. example.com)
Read only Idempotent
Input schema 
{'type': 'object', 'title': 'pw_watch_statusArguments', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'title': 'Domain'}}}
read_skill
Read a product skill file by its skill:// URI. Args: uri: e.g. skill://<product>/<skill-name>/SKILL.md Get valid URIs from `skills_list_tool`.
Input schema 
{'type': 'object', 'title': 'read_skillArguments', 'required': ['uri'], 'properties': {'uri': {'type': 'string', 'title': 'Uri'}}}
skills_list_tool
List this product's skills. Each entry carries the SKILL.md URI, its name and description, verbatim frontmatter, and a per-file sha256 manifest. Read a body with `read_skill`.
Input schema 
{'type': 'object', 'title': 'skills_list_toolArguments', 'properties': {}}
History

Recent tool changes

Added
read_skill
Sept. 17, 2026, 12:41 p.m.
Added
skills_list_tool
Sept. 17, 2026, 12:41 p.m.
Added
pw_stats
Sept. 17, 2026, 12:41 p.m.
Added
pw_watch_status
Sept. 17, 2026, 12:41 p.m.
Added
pw_snapshot
Sept. 17, 2026, 12:41 p.m.
Added
pw_health
Sept. 17, 2026, 12:41 p.m.
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