Patent PreCheck MCP MCP server

An official MCP server providing 12 tools for patentability scoring, prior art search, and US patent lookup without requiring USPTO API keys. It allows AI agents to score code against a large corpus, check rejection risks, and retrieve patent details.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Patent PreCheck

MCP endpoint (Streamable HTTP)

https://patentprecheck.com/mcp

Vendor documentation

What you can do with it

Score code for patentability inside Cursor or Claude
Search 2,200,000+ prior-art matches
Resolve US patent numbers
Preview examination rejection risks

Tools advertised by the last live check:

precheck_score
precheck_prior_art
precheck_rejection_patterns
precheck_legal_context
precheck_pillars
precheck_start_review
precheck_search_corpus
precheck_cpc_suggest
precheck_session_status
precheck_deliverables
precheck_lookup_patent
precheck_compare_to_patent

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 a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http patent-precheck-mcp https://patentprecheck.com/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-precheck-mcp --url https://patentprecheck.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable patent-precheck-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "patent-precheck-mcp": {
      "url": "https://patentprecheck.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "patent-precheck-mcp": {
      "type": "streamableHttp",
      "url": "https://patentprecheck.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start patent-precheck-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "patent-precheck-mcp": {
      "type": "http",
      "url": "https://patentprecheck.com/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-precheck-mcp https://patentprecheck.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "patent-precheck-mcp": {
      "url": "https://patentprecheck.com/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-precheck-mcp": {
      "serverUrl": "https://patentprecheck.com/mcp"
    }
  }
}

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