Product overview

Muzzle

AI input, output, and execution security layer

Preview

Our mission

Safeguards for every LLM, built for everyone

We're building Muzzle so anyone can decide what their language models are allowed to take in and give back — and genuinely trust the applications they build on top of them. Putting safeguards around an LLM shouldn't require a security team or custom infrastructure.

Muzzle makes it simple to set clear, custom rules around any model: filter the inputs, filter the outputs, and see exactly what was allowed or blocked.

Plain English

What Muzzle does

Muzzle is a transparent security proxy for AI model traffic. It sits between your applications and your model providers — Ollama, OpenAI, and Anthropic — and inspects every request, response, and tool call against your policy, with no changes to your client code.

Runs in front of your provider on the port your clients already use.
Inspects prompts, responses, and tool calls for prompt injection, secrets, and PII.
Per-category actions — allow, log, redact, transform, or block — with tool calls blocked by default.
Fails closed by default: if inspection cannot complete, traffic is blocked rather than passed through.

Install

One command on a Linux host (needs python3.12 and sudo). It downloads muzzle, checks it against the SHA-256 published here, and only then runs the installer.

curl -fsSL https://ai.hurricaneindustries.co/api/products/muzzle/install.sh | sudo bash

Or download it first

Same result, if you would rather read the source before running it. The second line is the integrity check the one-command install does for you.

curl -fsSL https://ai.hurricaneindustries.co/api/products/muzzle/artifact -o muzzle-v1.tar.gz
curl -fsSL https://ai.hurricaneindustries.co/api/products/muzzle/artifact.sha256 | sha256sum -c -
mkdir -p muzzle && tar -xzf muzzle-v1.tar.gz -C muzzle
cd muzzle && sudo bash install.sh

Operational summary

Visibility

public

Downloads

Available

Latest release

v1.2.1

Working version

—

Living documents

Browse history

forthebots

Muzzle — For the Bots

muzzle/forthebots.md

Updated Oct 22, 2026, 1:42 AM UTCNo commit recorded

Open history

HOWITWORKS

How Muzzle Works

muzzle/HOWITWORKS.md

Updated Oct 22, 2026, 1:42 AM UTCNo commit recorded

Open history

README

Muzzle

muzzle/README.md

Updated Oct 18, 2026, 8:50 AM UTCNo commit recorded

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PLAINENGLISH

Muzzle in Plain English

muzzle/PLAINENGLISH.md

Updated Oct 18, 2026, 8:50 AM UTCNo commit recorded

Open history