Epo Ops MCP Server

@pipeworx/epo-ops

European Patent Office Open Patent Services MCP — published patents from the EPO worldwide patent register (DocDB). Covers Europe and, via INPADOC family data, related filings across many jurisdictions worldwide. For US-only filings use the patents pack (USPTO ODP) instead — it doesn't overlap with this one on claims/citation coverage: this pack has get_claims, that one doesn't.

Part of Pipeworx — an MCP gateway connecting AI agents to 1831+ live data sources. This is an independent, unofficial integration — not affiliated with, endorsed by, or published by the upstream provider.

Tools

• search_patents(query, range?) — CQL search against published patents
• get_biblio(number, format?) — bibliographic data
• get_family(number) — INPADOC family (related applications worldwide)
• get_abstract(number) — abstract text
• get_claims(number) — claims text
• get_legal_status(number) — INPADOC legal status: grant, lapse, opposition, withdrawal, appeal and renewal-fee events, grouped per family member/contracting state

Auth

• Platform key: gateway env PLATFORM_EPO_KEY (consumer_key:consumer_secret pair joined with colon)
• BYO: ?_apiKey=<consumer_key>:<consumer_secret> after registering at https://developers.epo.org/

The pack exchanges credentials for a bearer token (20-min TTL, cached).

Data source

https://ops.epo.org/3.2/rest-services/ — OAuth2 client_credentials, JSON via Accept: application/json.

Patent number formats: EPO docdb (EP.1234567.A1), epodoc (EP1234567), original (EP1234567B1).

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "epo-ops": {
      "url": "https://gateway.pipeworx.io/epo-ops/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/epo-ops/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — ask_pipeworx, discover_tools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a scoped connection answer a question this pack does not cover — via ask_pipeworx, which routes across the whole catalog — without you adding a second MCP server. There is currently no way to mount a pack endpoint without them; if the extra schemas cost you more context than the routing is worth, connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1831+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

No MCP client? Call it over HTTP

curl -X POST https://gateway.pipeworx.io/v1/tools/epo_ops_search_patents \
  -H 'Content-Type: application/json' \
  -d '{"query":"ta=hydrogen fuel cell"}'

No account needed for the first calls. Inspect any tool: GET https://gateway.pipeworx.io/v1/tools/epo_ops_search_patents. Find one: POST https://gateway.pipeworx.io/v1/tools/search_packs with {"query":"..."}.

Standalone (no gateway account)

This package also runs as a local stdio MCP server — no Pipeworx account, no gateway round-trip:

{
  "mcpServers": {
    "epo-ops": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-epo-ops"]
    }
  }
}

Or run it directly to confirm it starts:

npx -y @pipeworx/mcp-epo-ops

It speaks MCP over stdin/stdout and answers initialize/tools/list/tools/call for only this pack's tools — none of the shared meta-tools the gateway connection above adds. Same source, same tools, no ask_pipeworx routing.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

ask_pipeworx({ question: "your question about Epo Ops data" })

The gateway picks the right tool and fills the arguments automatically.

More

• Docs and guides
• pipeworx.io

License

MIT