Trademark MCP Server (USPTO)

A remote Model Context Protocol server that lets an AI agent search and filter 14M+ US federal trademark records — by mark text, owner, goods/services, class, status, date, and every other searchable field on the record — then pull any full record by serial number.

Point Claude, Cursor, or any MCP client at one URL. No integration code, nothing to install, and free to start: 200 calls/month, no credit card.

• Search, not lookup. Find the marks you don't already have serial numbers for.
• Catches the variants. Fuzzy matching, plus the USPTO's own pseudo-mark field (GR8 → GREAT), translations, and transliterations — the places near-conflicts hide.
• Runs without babysitting. Every tool is declared read-only, so clients that honor tool annotations can run a dozen searches without a confirmation prompt on each one.
• Sign in, no key required. One-click OAuth on claude.ai and Claude Desktop; a Bearer key when you want one for scripts and CLI.

Start free and read the docs: goalieip.com/mcp · setup for every client at goalieip.com/docs#mcp

Not another TSDR wrapper

Most "trademark MCP" servers wrap the USPTO's TSDR endpoint, which returns a single record only when you already know its serial or registration number. That's a lookup tool. This server searches and filters the whole register, so your agent can find the marks it doesn't already have the numbers for.

See examples/prompts.md for two real sessions — including a ten-name clearance screen that a lookup-only tool cannot begin, because no serial numbers are known going in.

Quickstart (Claude Code)

No key needed — one command, then sign in:

claude mcp add --transport http goalieip https://www.goalieip.com/api/mcp

Claude Code opens a browser to sign in with your Goalie IP account over OAuth. No account yet? Sign up free — 200 calls/month, no credit card; just confirm your email to activate.

Prefer a key, for scripts or CI? Create one in your Goalie IP portal and pass it as a header:

claude mcp add --transport http goalieip \
  https://www.goalieip.com/api/mcp \
  --header "Authorization: Bearer gip_live_your_key_here"

Then just ask — the agent picks the tool and filters on its own:

> Are there any live trademarks similar to "GOALIE" for software in class 9?

  Searching US federal trademarks…
  Found 94 matches. 12 are live in class 9, including:
    GOALIEO   — Goalieo Inc      — Live/Pending  — filed 2026-05-29
    …

The three tools

search_trademarks returns compact summaries (page size defaults to 10, capped at 15) sized to sit in a model's context window; call get_trademark for the full record. Every search must include at least one narrowing filter (markLiteral, ownerName, serialNumber, registrationNumber, goodsAndServices, or another text filter) — class, status, and date filters alone match too much of the register to run. When a query is rejected or times out, the tool replies with the specific parameter to change, so the agent can correct itself and retry.

All three tools are read-only and say so: each is annotated readOnlyHint: true. That matters for agents. A real clearance screen is often a dozen or more searches, and clients that honor tool annotations can run read-only calls without stopping to ask permission for each one.

What agents use it for

• Name clearance screens. Hand the agent a shortlist and it checks each candidate across the relevant classes before anyone pays for a full search — see Sample 1.
• Portfolio and maintenance reviews. Pull every mark an owner holds, with full records, so the agent can flag what's abandoned, pending, or approaching a post-registration filing window.
• Competitor watch. Everything a competitor has filed, narrowed by owner name and filing date.
• Finding the near-misses. Fuzzy matching plus pseudo-mark, translation, and transliteration fields surface the phonetic, stylized, and foreign-language variants an exact search misses.
• Drafting goods and services. Full-text word search across how other filers described similar goods, before you write your own identification.
• Attorney and firm research. Every filing where a given attorney is of record.

The agent reads and reasons over the records; it does not make the legal call. See Scope & safety.

In the MCP Registry

This server is published to the official MCP Registry as com.goalieip/trademark, under a namespace verified against the goalieip.com domain — so the listing is first-party, not a third-party mirror.

curl "https://registry.modelcontextprotocol.io/v0/servers?search=com.goalieip/trademark"

Clients that read the registry can add the server by name and will prompt for authorization themselves — an OAuth sign-in, or an API key. Clients that don't, use the manual configs below.

Connect from any client

Two ways to authenticate, both on the same endpoint:

• OAuth — easiest for apps with a Connect / Add connector screen (Claude Desktop, claude.ai). Paste the endpoint URL and sign in with your Goalie IP account when prompted; the client registers itself automatically (Dynamic Client Registration + PKCE) and needs no key.
• API key — for CLI and programmatic clients. Send your key as an Authorization: Bearer header. Create one in your portal.

Drop-in config files for the API-key path are in examples/; replace gip_live_your_key_here with a real key.

Claude API (MCP connector)

{
  "mcp_servers": [
    {
      "type": "url",
      "url": "https://www.goalieip.com/api/mcp",
      "name": "goalieip",
      "authorization_token": "gip_live_your_key_here"
    }
  ]
}

Any MCP client / Cursor (generic config)

{
  "mcpServers": {
    "goalieip": {
      "type": "http",
      "url": "https://www.goalieip.com/api/mcp",
      "headers": {
        "Authorization": "Bearer gip_live_your_key_here"
      }
    }
  }
}

Claude Desktop & claude.ai

Use OAuth — no bridge, no key file. Open Settings → Connectors → Add custom connector and paste the endpoint URL:

https://www.goalieip.com/api/mcp

Claude registers itself automatically (PKCE), sends you to sign in with your Goalie IP account, and stores the token. Approve the trademark.read scope and you're connected.

No-OAuth fallback (older clients): attach an API key through the mcp-remote bridge — config in examples/claude-desktop-config.json, full steps (including the "fully quit before editing" gotcha) at goalieip.com/docs#mcp.

Server details

Always configure the www host. goalieip.com 301-redirects to www, and many clients drop the Authorization header across the redirect (→ a 401). More troubleshooting: goalieip.com/docs#mcp.

Pricing