Blackout

Name: Blackout
Author: thrain-ai

by thrain-aiversion 1.3.0i★ –iRuns on your computer

Registry nameai.thrain/blackout

Install

Overview

Description from the maker (original English)

Permanent local PDF redaction: text is removed and verified gone, not covered. No uploads.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Docs, sheets & office work

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "blackout": {
      "command": "npx",
      "args": [
        "-y",
        "@thrain/blackout-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add blackout -- npx -y @thrain/blackout-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "blackout": {
      "command": "npx",
      "args": [
        "-y",
        "@thrain/blackout-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "blackout": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@thrain/blackout-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain thrain.ai (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 2177 servers in this category
Published to the registry more recently than 23% of the other 2177 servers in this category
Basic checks equal to or better than 100% of the other 2177 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Blackout safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.3.0) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Agent-Native Calendar

by BuilderIO

Agent-Native Google Calendar - manage events, sync, and public booking

Runs in the cloud★ 7,620MITUpdated 2 months ago

Install

Excel MCP Server

by haris-musa

Lets AI create and edit Excel files itself, including formulas, charts and PivotTables, without Excel installed.

Runs on your computer★ 4,276MITUpdated 6 days ago

Install

MCP Server for Excel

by sbroenne

Excel automation for AI - Sheets, Power Query, DAX, VBA, Tables, Ranges and more. Windows only.

Runs on your computer★ 847MITUpdated 3 days ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Blackout

True PDF redaction, entirely in your browser.

blackout.thrain.ai

Blackout finds Social Security numbers, emails, phone numbers and card numbers in a PDF, lets you search custom terms or draw boxes by hand, and exports a flattened PDF where the redacted text is *actually gone* — not hidden under a rectangle.

It runs in three places, all on the same engine: the browser app, a CLI, and an MCP server.

npx @thrain/blackout redact filing.pdf --detect ssn,email --out clean.pdf

How it works

Nothing leaves your device. Rendering (pdf.js), detection, and export (pdf-lib) all run client-side. Load the page, go offline, it still works.
Redaction is real. Export rasterizes each page and burns the boxes into the pixels, then rebuilds the PDF from those images. The original text layer is discarded — copy-paste and text extraction recover nothing.

Develop

npm install

npm install npm run dev # local dev server npm run build # type-check + production build to dist/ npm run build:agent # type-check + bundle the CLI and MCP server to packages/

npm run smoke # headless browser end-to-end test npm run smoke:cli # CLI end-to-end test npm run smoke:mcp # MCP server end-to-end test npm run smoke:agent-dist # the same two, against the built bundles

node scripts/make-test-pdf.mjs out.pdf 12 # fixture with fake PII node scripts/test-worker.mjs # license worker tests node scripts/visual-check.mjs [test.pdf] [outdir] # screenshot spot-check

The browser smoke script needs a Chrome/Chromium binary; set CHROME_BIN if yours isn't in the default Playwright cache location. Every smoke test makes the same central assertion — that the exported PDF contains zero extractable text — because that assertion is the entire product, and it has to hold on every path that ships, not just the one that is easy to check.

Architecture

Engine (src/pdf/) — detection, mark ordering, and the rasterise-and-burn export. Platform-agnostic: its only contact with the outside world is src/pdf/platform.ts, which supplies a canvas. src/platform/browser.ts backs it with a DOM canvas, src/platform/node.ts with Skia. There is exactly one redaction implementation, so the browser and the CLI cannot drift.
Site — static React app, deployed to GitHub Pages by .github/workflows/deploy.yml on every push to main.
CLI and MCP server (src/agent/) — thin non-interactive wrappers over the engine, bundled into packages/blackout and packages/blackout-mcp.
License worker (worker/) — a Cloudflare Worker that verifies Stripe checkout sessions and mints signed license tokens; the app verifies them with an embedded public key. Deployed by .github/workflows/deploy-worker.yml.

For agents

An agent asked to redact a PDF will otherwise write a script that draws a black rectangle over text that stays selectable underneath. Two form factors exist so that "redact this PDF" can resolve to a tool that does it correctly:

CLI — packages/blackout · npx @thrain/blackout redact in.pdf
MCP server — packages/blackout-mcp · tools redact_pdf, check_pdf

Both verify their own output before returning: they re-extract text from the file they just wrote and fail rather than hand back a document that still has a text layer. Neither makes a network call, including the licence check — so nothing leaves the machine at all.

License

Apache-2.0 © Thrain LLC. The "Blackout" name and logo are trademarks of Thrain LLC (see NOTICE) — fork freely, but ship your fork under your own name.

Blackout

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

How it works

Develop

Architecture

For agents

License