Next free-source huntWe check for new free data every weekday.
Research & Grey LiteratureMCP serverFirst audited Nov 13, 2026

com.dropwatchhq/patent-gap

Off-patent opportunity feed: expiring design patents, recall + supplier screened, for sellers.The vendor's description, from its MCP Registry listing.

Passed, with 2 warningsAudited Nov 13, 2026
  • Warning: The server only speaks the first MCP version (2024-11-05).
  • Warning: 4 of 4 tools do not say whether they can change things.

Nothing failed, but there is something to know or fix. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 225 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
Doesn't sayIts tools do not say whether they only read, so treat them as able to change things.
Endpointhttps://patentgap.dropwatchhq.com/mcp

Website Streamable HTTP · protocol 2024-11-05 · server version 1.0.0

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Warning: 4 of 4 tools do not say whether they can change things.

    MCP lets a server label each tool as read-only or destructive, so clients can ask the user before risky calls. Unlabelled tools are treated as able to change things.

    • list_categories
    • newly_expirable
    • screen_patent
    • category_opportunity_report

Tools

  • Passed: 4 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Warning: The server only speaks the first MCP version (2024-11-05).

    Newer versions (latest 2025-11-25) add tool safety labels, structured output and a safer authorization model.

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (4)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • list_categoriesList the private-label product categories Patent-Gap tracks for expiring design patents.Doesn't say
  • newly_expirableCross-category feed of design patents that just became (or are about to become) free to make — i.e. fresh off-patent private-label opportunities, soonest-expiry first, already recall- and supplier-sc…Doesn't say
  • screen_patentScreen ONE US patent by publication number (e.g. USD689332S1): compute its statutory expiry/status, join CPSC recall-safety for its category, and run an OFAC/OIG screen on the assignee. Returns the f…Doesn't say
  • category_opportunity_reportPAID (x402, $0.03 USDC on Base). Full off-patent opportunity report for a category slug (see list_categories): every newly-expirable design patent with computed expiry, CPSC recall-safety band, and O…Doesn't say

Audit history

  1. Nov 13Warnings

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200225 ms
initializedHTTP 20045 ms
tools/listHTTP 20093 ms
unknown-methodHTTP 20041 ms

Run this server, or disagree with the result?

Fix the issue and it shows in the next weekly audit, or email us to ask for a re-audit or to dispute a finding. Read how we audit for what each check means.