Koskamo

Patent by Ouroboros Apps MCP

A community MCP server that allows AI assistants to search USPTO public patent records, retrieve patent details like abstracts and claims, find citations, and search for prior art based on idea descriptions. It is designed for inventors, founders, and engineers to check public records, with a disclaimer that it is not legal advice.

Visit Ouroboros Apps

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Patent by Ouroboros Apps MCP logo, by Ouroboros AppsCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by Ouroboros Apps
You need:A new account can search during the trial.
MCP endpoint (Streamable HTTP)
https://patent-mcp.vercel.app/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (4)

4 of 4 have a description · 4 of 4 declare behavior hints · 4 of 4 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Search public patent records by keywords, claim language, CPC class, assignee, inventor, or grant date.
  • Fetch one patent's title, abstract, claims, status, family, and citations from USPTO.
  • List documents cited by a patent and documents that cite it using USPTO grant references.
  • Turn an idea description into a public-patent search and return the closest records.

Source and maintenance

Community listingRegistry 1.0.1
mcp-registry: io.github.LAHutchins91/patent@1.0.1Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
Patent by Ouroboros Apps 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Patent by Ouroboros Apps reports records returned by public patent offices. It is not legal advice and is not a substitute for a registered patent attorney or agent. A result is not an opinion on patentability, infringement, validity, or freedom to operate. Call the tools for public patent records. Do not invent patent numbers.

Tools

4 advertised

search_patents — Search patents
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

search_patents input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "cpc": {
      "type": "string",
      "maxLength": 30,
      "description": "CPC symbol, such as H04L or C07H19/207."
    },
    "limit": {
      "type": "integer",
      "maximum": 25,
      "minimum": 1,
      "description": "Maximum hits, 1 to 25."
    },
    "claims": {
      "type": "string",
      "maxLength": 2000,
      "description": "Claim language. USPTO matches these words across the file wrapper."
    },
    "dateTo": {
      "type": "string",
      "maxLength": 10,
      "description": "Grant or publication date to, YYYY-MM-DD."
    },
    "assignee": {
      "type": "string",
      "maxLength": 200,
      "description": "Applicant or assignee name."
    },
    "dateFrom": {
      "type": "string",
      "maxLength": 10,
      "description": "Grant or publication date from, YYYY-MM-DD."
    },
    "inventor": {
      "type": "string",
      "maxLength": 200,
      "description": "Inventor name."
    },
    "keywords": {
      "type": "string",
      "maxLength": 400,
      "description": "Words to find in the application or title and abstract."
    }
  },
  "additionalProperties": false
}
search_patents annotations
{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
get_patent — Get patent details
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

get_patent input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "patentNumber"
  ],
  "properties": {
    "patentNumber": {
      "type": "string",
      "maxLength": 32,
      "minLength": 4,
      "description": "US patent or publication number, such as US10000000 or 10000000."
    }
  },
  "additionalProperties": false
}
get_patent annotations
{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
find_patent_citations — Find citing and cited patents
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

find_patent_citations input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "patentNumber"
  ],
  "properties": {
    "direction": {
      "enum": [
        "citing",
        "cited_by",
        "both"
      ],
      "type": "string",
      "description": "citing: documents that cite this patent. cited_by: documents this patent cites. both is the default."
    },
    "patentNumber": {
      "type": "string",
      "maxLength": 32,
      "minLength": 4,
      "description": "Patent or publication number."
    }
  },
  "additionalProperties": false
}
find_patent_citations annotations
{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
search_prior_art — Search prior art
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

search_prior_art input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "idea"
  ],
  "properties": {
    "idea": {
      "type": "string",
      "maxLength": 4000,
      "minLength": 20,
      "description": "What the invention is, in plain language."
    },
    "limit": {
      "type": "integer",
      "maximum": 25,
      "minimum": 1,
      "description": "Maximum patents to return."
    }
  },
  "additionalProperties": false
}
search_prior_art annotations
{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
532 ms
95th percentile latency
532 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 532 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http patent-by-ouroboros-apps-mcp https://patent-mcp.vercel.app/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add patent-by-ouroboros-apps-mcp --url https://patent-mcp.vercel.app/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable patent-by-ouroboros-apps-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "patent-by-ouroboros-apps-mcp": {
      "url": "https://patent-mcp.vercel.app/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "patent-by-ouroboros-apps-mcp": {
      "type": "streamableHttp",
      "url": "https://patent-mcp.vercel.app/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start patent-by-ouroboros-apps-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "patent-by-ouroboros-apps-mcp": {
      "type": "http",
      "url": "https://patent-mcp.vercel.app/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http patent-by-ouroboros-apps-mcp https://patent-mcp.vercel.app/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://patent-mcp.vercel.app/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "patent-by-ouroboros-apps-mcp": {
      "serverUrl": "https://patent-mcp.vercel.app/mcp"
    }
  }
}

Let your agent find its tools

Find servers like Patent by Ouroboros Apps MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows
See all 8,807