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Model Context Protocol

Use GleanMark inside your AI assistant

One endpoint connects 14 million USPTO trademark records, TTAB proceedings and full prosecution history to Claude, ChatGPT, or any MCP-compatible client. No SDK to install, and public trademark search works without an account.

Asked in Claude or ChatGPTAnswered from the USPTO record
Why was U.S. trademark application serial 99458124 refused, and which registration was cited?
GleanMark read the office action and the file history

The application

SABII 99458124

Sabii, LLC · Class 3

Refused Mar 11, 2026: Section 2(d), likelihood of confusion.

The cited registration

SABI Reg. 2,232,458

Sandawana Holdings Ltd. · Class 3

What happened next

  1. Filed Oct 23, 2025
  2. →Refused under §2(d) Mar 11, 2026
  3. →Abandoned: no response Jun 25, 2026
  4. →Revived, response filed Jul 15, 2026
  5. →Suspended Aug 12, 2026
Facts from the public record, as GleanMark returns themSee the record

Server URL

https://gleanmark.com/mcp

Streamable HTTP. Public trademark search needs no account.

What you get

Your assistant answers from the USPTO register, updated daily, instead of the open web, with exact counts, real serial and registration numbers, and a link to every record it cites.

Public — no account

Explain a refusal, with the cited registration

Reads the parsed Office Action and names the exact registration it cited, not a guess from the web.

“Why was U.S. trademark application serial 99458124 refused, and which registration was cited?”

Public — no account

A dated prosecution timeline

Key dates from the USPTO record and the reason for the current status, such as a pending TTAB cancellation.

“List the key dates in the prosecution of serial 99458124 and explain why it is suspended.”

Public — no account

Filing counts across the whole register

U.S. applications filed per year, month or day, with Madrid Protocol filings shown separately.

“How many U.S. trademark applications were filed in 2025, and how does that compare with 2024?”

Public — no account

Who files the most in a class

A ranked table of the top filers in any Nice class and date range, with each filer linked to its GleanMark page.

“Who were the top 10 trademark filers in Class 9 in 2025?”

Signed in

A knockout search for a new name

A risk-ranked table of conflicting marks with registration numbers, owners, goods and a link to each record. A screening aid, not a legal opinion.

“Which existing trademarks could block registering LUMINARA as a brand for snack foods in Classes 29 and 30?”

Signed in

Your own portfolio, deadlines and clients

Ask about the marks you watch, what is due this month, or a client's docket, and the answer comes from your GleanMark workspace.

“Which of my marks have a deadline in the next 60 days?”

Every answer states its source and how complete it is: which results are USPTO or TTAB records and which are GleanMark analysis, how current the data is, and whether a list is exhaustive, ranked, or cut off.

Under three minutes in ChatGPT: a refusal explained, a prosecution timeline, filings counted year over year, the top filers in a class, and a knockout search for a new brand. Waiting time is sped up.

Setting it up

Claude

SupportedAnthropic

Paid Claude plans (Pro, Max, Team, Enterprise)

Add GleanMark as a custom connector and Claude can search trademarks, pull TTAB history, and read your portfolio in the middle of a conversation.

  1. 1Open Settings, then Connectors.
  2. 2Choose to add a custom connector.
  3. 3Paste the GleanMark endpoint below and save.
  4. 4Start a chat and ask a trademark question — Claude will call GleanMark on its own.
Full Claude setup guide

ChatGPT

SupportedOpenAI

Listed in ChatGPT’s plugin directory (published 2026-10-08)

Install GleanMark from its ChatGPT listing, then select it or @mention it whenever you want ChatGPT to use GleanMark. Public USPTO research works without a GleanMark account.

  1. 1Open the GleanMark listing in ChatGPT (button below) and click Install plugin.
  2. 2When ChatGPT offers to sign in to GleanMark, log in with your GleanMark account on the page that opens and pick the workspace ChatGPT should use. That unlocks knockout and similar-mark searches and your own portfolios, clients and deadlines, within your plan, the same as in the app. Developers can connect with an API key on the same page. Or continue without signing in; public USPTO research still works.
  3. 3Start a new conversation, select or @mention GleanMark, and ask a trademark question.
Open GleanMark in ChatGPT

Other MCP clients

SupportedAny MCP-compatible tool

Editors, agent frameworks, and custom builds

GleanMark implements the Model Context Protocol over streamable HTTP. Anything that speaks MCP can point at the same URL — there is no GleanMark-specific SDK to install.

  1. 1Register a remote MCP server in your client of choice.
  2. 2Use the GleanMark endpoint below as the server URL.
  3. 3Clients that cannot complete an OAuth flow may send a GleanMark API key (Settings → Account → API access) as a bearer token instead.

What does not work yet

  • Claude’s directory. GleanMark is listed in ChatGPT’s plugin directory; its Claude directory listing is still under review. Until it is published, you add GleanMark in Claude by pasting the endpoint above.
  • Inline cards in ChatGPT. Answers come back as ChatGPT's own tables and text with links to each record. We turned off in-chat cards on purpose: ChatGPT rendered them during its reasoning, before the answer.

Access and privacy

Public data needs no account

Search, owner and firm research, TTAB lookups and prosecution history all answer without signing in.

Your portfolio needs a sign-in

Log in with your GleanMark account when your assistant asks you to connect GleanMark. That runs knockout and similar-mark searches and reaches your own portfolios, clients, deadlines and alerts, within your plan. Developers and other MCP clients can use an API key from Settings → Account → API access (Professional, Max and Enterprise plans).

Nothing filed, edited or deleted

Nothing files, edits, deletes or pays. Four research tools save their analysis to your own GleanMark account; everything else only reads. The connector never reads your chat history, memory or uploaded files.

Common questions

Try it without connecting anything

Public trademark search works in the browser too, with no account.

Search 14M trademarksSet up Claude
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GleanMark

Trademark intelligence for prosecution attorneys.

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For founders: glean.name ↗, a free trademark and domain check for startup names.

Product

  • Trademark Lookup
  • Clearance Reports
  • Office Actions
  • OA Drafting
  • Office Action Research
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  • Deadline Management
  • Markus AI™
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Resources

  • Free Trademark Search
  • Office Action Decoder (free)
  • Insights
  • TTAB Desk
  • USPTO Guide
  • Precedents
  • State of Trademark Filings
  • Trademark Classes

Compare

  • GleanMark vs USPTO
  • GleanMark vs Corsearch
  • GleanMark vs TM TKO
  • GleanMark + Alt Legal
  • GleanMark vs LegalZoom
  • GleanMark vs Clarivate

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