Patent Connector: a Patent MCP Server and CLI

Official patent, trademark and design data, straight from the source, for AI and the terminal.

One engine, two ways to use it. Patents, trademarks and designs across six jurisdictions, from official offices. No scraping, no aggregators.

Choose your variant

Patent Connector for AI (MCP server)

Plug Claude, ChatGPT and other MCP clients straight into official IP data. Hosted or self-hosted. One-click install from the ChatGPT app directory.

Explore the MCP server

Patent Connector CLI (terminal)

The same coverage from your terminal. Run it locally in-process, against the hosted service, or on your own self-hosted server. Output as JSON, table or YAML.

Explore the CLI

What you can do

Patents: keyword, field and classification search at the EPO, USPTO, DPMA and IP Australia; claims, full text, drawings, families and legal status, with full text across 30+ countries via EPO Open Patent Services; plus JPO and TIPO lookups, summaries, prosecution timelines, patent term and side-by-side comparisons.
Prosecution and prior art: ownership and continuity chains, register and prosecution events, file-wrapper documents and PDFs, USPTO office actions and rejections, EPO and JPO prior-art citations, and PTAB proceedings.
Trademarks and designs: search EU and Australian trademarks and registered designs (EUIPO, IP Australia); status, documents and images for the US, EU, Japan, Australia and Taiwan.
Classifications and manuals, always on, no API keys: CPC, IPC, FI and JPO F-terms with full hierarchy and concordances; examination manuals from the USPTO, EPO, EUIPO, WIPO, KIPO, JPO, DPMA and IP Australia; found by meaning, with built-in semantic search and no setup.

See the full capability list on the Patent Connector page.

Why it is different

First-hand data. Official office sources, proper credentials, no scraping and no third-party aggregator.
Broad and solid. Three rights, six jurisdictions, one connector.
Yours to run. Hosted, self-hosted, or standalone in-process.

Built for

Patent and trademark searchers, attorneys, analysts, and developers building on IP data.

Start now

The CLI starts with a free license, and the hosted server connects to Claude or ChatGPT in a single click.

Enthusiastic Fear

Originally written in German („Enthusiastische Angst"). While writing this, I listened to one piece, over and over: Mendelssohn's Concerto for Violin, Piano and Strings in D minor, the second movement, the Adagio (Apple Music · Spotify). Take a moment, a small pause - if you feel like it: listen

Patent Connector 1.5: Japan, Taiwan and Australia

Patent Connector version 1.5.0 adds three new patent offices: IP Australia, the Japan Patent Office (特許庁), and Taiwan's Intellectual Property Office (經濟部智慧財產局, TIPO). Coverage now reaches across six jurisdictions and three rights - patents, trademarks, and designs - all from official office data, queried with your own API

Patent Connector 1.4: Now It Speaks Trademark

Almost a year ago I built a small proof of concept: talk to patent offices directly through an MCP server. Then the daily usage started climbing and never stopped. Agentic AI is what tipped it over, and that little experiment quietly became something people now run every day. Today I

Patent Connector 1.3: now it speaks human

Patents are written in a secret language: the kind you get when legalese and engineering specs have a child and let a filing cabinet name it. That is how you end up with classification codes like C02F1/4604, which sounds like a malfunctioning robot but actually means "removing salt