Skip to content

Plumb Registry

com.plumbregistry/directoryplumbregistry.comstreamable-httpv1.0.0Scanned

Search and verify fire protection contractor licenses (TX SFMO, CA CSLB C-16) from state records.

3 tools: 1 change things and 2 only read.

Tools: 0 delete, 0 irreversible, 1 write, 2 read.
  • Reads private data · 1
  • Reads text others write · 0
  • Can send data out · 0
  • No findings

Anlyon alternative

1 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

3 tools

Changes things 1Claude Code: ask
  • verify_licenseCheck whether a fire protection license or registration number is active, which company holds it, and when it expires.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Check whether a fire protection license or registration number is active, which company holds it, and when it expires. Covered: Texas (Texas State Fire Marshal's Office) and California (California Contractors State License Board). Data is a periodic snapshot of state records; the official lookup is linked.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
Only reads 2Show 2 read-only tools
  • get_providerLook up a company by its directory slug (from search results) or by any of its state license or registration numbers.Reads private dataNo findings

    Why it is in this group

    • The name "get_provider" says "get": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "directory": it reads files.
    Description, as the server wrote it
    Look up a company by its directory slug (from search results) or by any of its state license or registration numbers.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • search_providersFind fire protection companies with an active state license.No findings

    Why it is in this group

    • The name "search_providers" says "search": a word for reading.
    Description, as the server wrote it
    Find fire protection companies with an active state license. Covered: Texas (Texas State Fire Marshal's Office) and California (California Contractors State License Board). Filter by state, city, county, service (fire-sprinkler, fire-alarm, fire-extinguisher) or company name. With a city, results list companies with an office in that city first, then others in the same county; within each group the order is alphabetical (no company pays for placement). Every result includes license numbers, expiration dates, the regulator, a page URL and a cite_as string; please cite the URL when you use a result.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged untrusted-input or outbound.

Reads private data1
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http directory https://plumbregistry.com/mcp
claude mcp add --transport http directory https://plumbregistry.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__directory__search_providers",
      "mcp__directory__get_provider"
    ],
    "ask": [
      "mcp__directory__verify_license"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as directory. Review it before you use it.

Capability tags behind 1 rule
  • mcp__directory__get_provider private-data

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/com.plumbregistry/directory/verify?hash=c503bb265ddf72002756b800dd2c7ba6b27cdf94eb9fe09873a19240d3e0ffb5" | jq -e '.changed == false'

Pinned hash c503bb265ddf, from Oct 27, 2026, 13:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.plumbregistry/directory/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

anlyon.dev badge for com.plumbregistry/directory
[![anlyon.dev](https://anlyon.dev/badge/com.plumbregistry/directory.svg)](https://anlyon.dev/servers/com.plumbregistry/directory)

Source: MCP Registry. Synced Oct 27, 2026, 13:18 UTC.