Bunker by NosisTech
Bunker is an offline scanner for crypto addresses. You paste your addresses. The tool shows which addresses show their public key to the world. Then it gives you a calm plan, step by step, to hide what you can.
The tool runs only on your device. It does not connect to a wallet. It does not send or store anything. It knows more than 100 networks. It works in English and Spanish, for people and for AI agents.
Safety first. Bunker needs only your public addresses. Do not paste a seed phrase or a private key into this tool or into any other website. The tool blocks secrets if you paste them by mistake.
Contents
Why this tool exists
I see AI advancing at an alarming rate. AI models now solve math problems that stayed open for decades. The signatures that protect most crypto wallets depend on math problems that nobody has solved yet. Nobody has broken them today. But I do not want to wait for the day that someone does. Crypto needs extra security now.
The first step is simple: keep your funds on addresses whose public key the world has never seen. Most people do not know which of their addresses show the public key. Bunker gives that answer in about 30 seconds, with a plan to fix what you can.
Carlos A. Paredes Vargas, founder of NosisTech
Read docs/01-background.md for the full story.
Use the tool
You do not need to install anything.
Open https://bunker.nosistech.com, or use the file on your own computer:
- Download the file from https://bunker.nosistech.com/nosis-bunker.html. On GitHub, open
dist/nosis-bunker.html and select the download icon ("Download raw file").
- Optional: examine the file hash (see below).
- Double-click the file. It opens in your web browser. If Windows asks which app to use, pick your browser.
- Paste your addresses, one on each line. You can put a label after a space.
- Select Scan addresses.
- For each address that asks, answer the question: "Has it ever sent a transaction or signed a message?"
- Read the plan next to the results. Select Copy plan or Print to keep it.
The tool works with no internet connection. You can turn on airplane mode before you open the file.
Examine the file hash (Windows)
The hash proves that your file is the same as the file in this repository.
-
Open your Downloads folder in File Explorer. Right-click an empty area and select Open in Terminal.
-
Type this command and press Enter:
Get-FileHash .\nosis-bunker.html -Algorithm SHA256
-
Compare the result with the value in dist/SHA256SUMS.txt or at https://bunker.nosistech.com/SHA256SUMS.txt. The two values must be the same. Letter case does not matter.
On macOS or Linux, use shasum -a 256 nosis-bunker.html.
Language and theme
Use the EN / ES switch and the sun or moon button at the top. The page starts in the language and the color theme of your system. It saves nothing, so a new visit starts from your system settings again. To open the page in Spanish, use https://bunker.nosistech.com/#es.
Use Bunker with AI agents
The same engine is available to AI agents in two local forms. Both run offline, read only, and need Node.js 22.23.4, 24.22.1 or 26.12.1, or a newer release of the same line (24 is the tested one). Get the code with git clone https://github.com/nosistech/nosis-bunker.git. A clone needs no install step.
Command line (JSON):
node cli/bunker.js --json addresses.txt
cat addresses.txt | node cli/bunker.js --json --lang es
node cli/bunker.js --networks
MCP server (Claude Desktop, Claude Code, Cursor and other MCP clients):
{
"mcpServers": {
"bunker": { "command": "node", "args": ["C:\\path\\to\\nosis-bunker\\mcp\\server.js"] }
}
}
Tools: scan_addresses and list_networks. The website also has /llms.txt and /networks.json. Read docs/10-agents.md for the details, the JSON shape and the security rules.
Install the bunker-mcp command
Install the command from this GitHub repository. The package is private and is not published on npm.
npm install -g github:nosistech/nosis-bunker
Use Node.js 22.23.4, 24.22.1 or 26.12.1, or a newer release of the same line. Node.js must be on your PATH.
An MCP client can then start Bunker by the command name:
{
"mcpServers": {
"bunker": { "command": "bunker-mcp" }
}
}
The command reads standard input. It writes the protocol on standard output. Logs go to standard error. The node settings above and the Docker image below still work.
Run with Docker
You can also start the MCP server in a container. The image needs no environment variables and starts the server on standard input and output.
docker build -t nosis-bunker .
docker run -i --rm nosis-bunker
The -i flag keeps standard input open, which the protocol needs. The --rm flag removes the container when it exits.
An example
You paste these three lines:
bc1p5cyxnuxmeuwuvkwfem96lqzszd02n6xdcjrs20cac6yqjjwudpxqkedrcr Ordinals
bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4 Savings
0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed Daily wallet
The tool shows:
This is the beginning of the README. Read the rest at the original. Read the full README ↗
