Perimeter Watch
Passive domain-perimeter checks — cert expiry, subdomain takeover, lookalikes — as agent tools
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"perimeter-watch-scanner": {
"url": "https://perimeter-watch-api-production.up.railway.app/mcp/"
}
}
}Remote endpoints
https://perimeter-watch-api-production.up.railway.app/mcp/streamable-httpWhat it can do
Tool inventory
Tools (6)
🟢pw_health
Liveness check for the Perimeter Watch API. Returns ok, service, version. Call first to verify connectivity before pw_snapshot.
Input Schema
{
"type": "object",
"properties": {},
"title": "pw_healthArguments"
}🟢pw_snapshot(domain, authority)
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",
"properties": {
"domain": {
"title": "Domain",
"type": "string"
},
"authority": {
"title": "Authority",
"type": "boolean"
}
},
"required": [
"domain",
"authority"
],
"title": "pw_snapshotArguments"
}🟢pw_watch_status(domain)
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)
Input Schema
{
"type": "object",
"properties": {
"domain": {
"title": "Domain",
"type": "string"
}
},
"required": [
"domain"
],
"title": "pw_watch_statusArguments"
}🟢pw_stats
Service funnel counters: page views, snapshots run, paid registrations. Read-only.
Input Schema
{
"type": "object",
"properties": {},
"title": "pw_statsArguments"
}🟢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",
"properties": {},
"title": "skills_list_toolArguments"
}🟢read_skill(uri)
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",
"properties": {
"uri": {
"title": "Uri",
"type": "string"
}
},
"required": [
"uri"
],
"title": "read_skillArguments"
}Community
Evidence