Skip to content

Patent by Ouroboros Apps

by LAHutchins91 · remote · no sign-in to list tools · v1.0.1 · published by GitHub user LAHutchins91

USPTO patent search and prior art lookup. Not legal advice

Read only

4 tools: 4 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http patent https://patent-mcp.vercel.app/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Only reads 4Claude Code: allow
  • find_patent_citationsList documents cited by a US patent and documents that cite it, using USPTO grant references and USPTO office-action citations.Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "find_patent_citations" says "find": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "list" and "document": it reads documents.
    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    List documents cited by a US patent and documents that cite it, using USPTO grant references and USPTO office-action citations. The PatentsView citation graph is paused. Not legal advice.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • get_patentFetch one US patent's title, abstract, claims, status, family, and citations from USPTO.Reads text others writeNo findings

    Why it is in this group

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

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Fetch one US patent's title, abstract, claims, status, family, and citations from USPTO. Missing text is omitted rather than filled in. Not legal advice.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • search_patentsSearch public US patent records by keywords, claim language, CPC class, assignee, inventor, or grant date.Reads text others writeNo findings

    Why it is in this group

    • The name "search_patents" says "search": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Search public US patent records by keywords, claim language, CPC class, assignee, inventor, or grant date. Every number in the result was returned by USPTO. Not legal advice.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • search_prior_artTurn an idea description into a public-patent search and return the closest records the offices actually returned, with Google Patents links.Reads text others writeNo findings

    Why it is in this group

    • The name "search_prior_art" says "search": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Turn an idea description into a public-patent search and return the closest records the offices actually returned, with Google Patents links. Ranking counts overlapping words. It is not a patentability opinion. Not legal advice.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true

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 outbound.

Reads private data1
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write4
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.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Looked at Oct 22, 2026, 14:53 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
0
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
none
RFC 9728 protected resource metadata
https://patent-mcp.vercel.app/.well-known/oauth-protected-resource/mcp
Authorization servers
https://patent-mcp.vercel.app
Legacy HTTP+SSE transport
no
Dynamic client registration
yes
Client ID metadata documents
no

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http patent https://patent-mcp.vercel.app/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__patent__search_patents",
      "mcp__patent__get_patent",
      "mcp__patent__find_patent_citations",
      "mcp__patent__search_prior_art"
    ],
    "ask": [],
    "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 patent. Review it before you use it.

Capability tags behind 4 rules
  • mcp__patent__search_patents untrusted-input
  • mcp__patent__get_patent untrusted-input
  • mcp__patent__find_patent_citations private-data, untrusted-input
  • mcp__patent__search_prior_art untrusted-input