Open Trademarks MCP Server

by opentrademarks Your server? Claim it

answering

Open Trademarks is answering right now. Last checked 14 min ago. It exposes 2 tools.

Free trademark search across the US, EU and Israeli registers. A register search, not legal advice.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 5 days of history

5 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

226 ms

Response time

average over 24h

open, no key

Access

streamable-http

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add trademarks --transport http https://mcp.opentrademarks.org/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp.opentrademarks.org/mcp

~/.codex/config.toml

[mcp_servers.trademarks]
url = "https://mcp.opentrademarks.org/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "trademarks": {
      "url": "https://mcp.opentrademarks.org/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "trademarks": {
      "type": "http",
      "url": "https://mcp.opentrademarks.org/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

trademark

check_trademark

Check whether a name is taken as a trademark in the US, EU and Israeli registers. Returns one of three verdicts (exact_live_mark, similar_live_marks, no_live_match), or not_checked when no register in the check has been read yet, with the marks behind it, how each matched, and when each register was read.

trademarks

search_trademarks

Ranked live marks that share a query's spelling or sound, across the US, EU and Israeli registers.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.opentrademarks.org/mcp	streamable-http	answering	216 ms	14 min ago

Alternatives to Open Trademarks

same job, measured the same way

Trademark search

by foreverworks

Check whether a name is already a registered or pending trademark in the US or the EU.

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Federal Regulations MCP Server

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Search and trace US federal rules across the Federal Register, eCFR, and Regulations.gov.

255 installs/wk 7 tools answering

MarkMesh

by markmesh

Trademark search, monitoring and conflict research across 30+ registers, with provenance.

answering

US Federal Regulations (CFR)

by openkrill

Read a CFR or eCFR section, or search US federal regulations and the Federal Register.

5 tools answering

Signa

by signa

Search, screen and monitor trademarks across USPTO, EUIPO, WIPO, UKIPO and more with one API.

answering

TrademarkMind

by trademarkmind

Free trademark checks: brand names and logos vs U.S., international and Canadian registers.

6 tools answering

Citesearch

by cloudcorprecords

Search, read and trace links across the Edgepedia encyclopedia corpus.

264 installs/wk local only

Euipo

by pipeworx-io

EUIPO MCP — EU trademarks, registered Community designs, and the shared reference registers the…

452 installs/wk 51 tools answering

Open Trademarks — questions

Answers built from our own checks of this server.

What can Open Trademarks do?

It exposes 2 tools, read directly from the server on our last check. Among them: check_trademark, search_trademarks. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Open Trademarks working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 226 ms. The bar chart above shows every period we have measured.

Is Open Trademarks still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Open Trademarks?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Open Trademarks need an API key?

No. Open Trademarks completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Open Trademarks?

It answers our handshake in 226 ms on average, which is faster than 62% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.