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Plumbline - Contractor License Checks MCP server

by agentlookups.ai·ai.agentlookups/plumbline·v1.0.1
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Free contractor-license checks from official state records; a no-match never proves unlicensed.

C69/100grade C
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Safety scan
C69/100

full report

Adoption
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Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Plumbline - Contractor License Checks tools (1)

write = sends, deletes, buys or posts
  • check_contractorFree

    Check a contractor's license against official state and local licensing records covering dozens of US jurisdictions. The covered set grows over time; GET /v1/coverage on this host for the exact current list, and never assume from this description whether a jurisdiction is covered. Provide a license number or a business name, plus the jurisdiction. Returns match (the license record with status and provenance), candidates (disambiguate and call again; page with offset), no_match_in_index (NOT a determination of unlicensure), or jurisdiction_not_covered (with an official pointer URL for that jurisdiction; the response message states exactly what the link is, which for some jurisdictions is a consumer-protection or licensing-board page rather than a license lookup, so relay the message's wording and never present the link as a license lookup unless the message says it is one).

Public scan report

scanner v0.1.9 · 2026-09-21 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 151ms20/20
  • Tool poisoning1 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 69/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http plumbline https://contractors.agentlookups.ai/mcp
Add to Cursor

Plumbline - Contractor License Checks: common questions

Is Plumbline - Contractor License Checks MCP server safe?
With care: it is graded C, so read the findings first (69/100). Read the Plumbline - Contractor License Checks safety report
How do I install Plumbline - Contractor License Checks?
It runs remotely at contractors.agentlookups.ai. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Plumbline - Contractor License Checks need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Plumbline - Contractor License Checks maintained?
The latest release is v1.0.1.
Is Plumbline - Contractor License Checks up?
100% of our last 8 checks got an answer. We check remote servers about four times a day.
What can I use instead of Plumbline - Contractor License Checks?
Servers from other publishers that do the same job: Contractor Licence Changes MCP server and Dashclaw MCP server.

Alternatives to Plumbline - Contractor License Checks

Same job from other publishers: the closest match first, then the best rated.

  • Contractor Licence Changes
    Did this contractor's licence change? Observed lapses and reinstatements, not a snapshot.
    A
  • Dashclaw
    Policy checks, approvals, records, and governed HTTP capabilities for unattended agents.
    B

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