# Chain305

- **Website:** <https://chain305.com>
- **Primary alias:** `chain305.com`

## Description

Chainsaw, from Chain305, is an open-source install-path firewall designed to stop malicious and misleading software packages before they are downloaded. Its local guard runs as a shell hook on a developer’s machine, without a daemon or internet connection, and supports npm, pip, Cargo, RubyGems, and Go. The CLI includes malicious-package intelligence and typosquat detection, and explains why an installation was refused.

For organizations, Chainsaw applies a shared, signed Rego policy across pull requests, package installation, hosted repository publishing, Kubernetes admission, and developer laptops. Policies can address vulnerabilities, licenses, versions, provenance, and other software supply-chain signals. Teams can begin in monitor mode, review audit records, and manage scoped exceptions, including expiry and optional two-person approval.

Chainsaw offers a registry proxy that extends enforcement across additional ecosystems, as well as deployment options including managed SaaS, a customer’s cloud environment, and air-gapped installations. Its capabilities include package inventory, signed SBOMs, audit evidence, and Enterprise SIEM exports.

## Industries

- 🖥 Computers Electronics and Technology
- 🖥 Computer Security _(under Computers Electronics and Technology)_

## Links

- [github](https://github.com/chain305)

## Logos & icons

- logo _(primary)_ — PNG, SVG — [download](https://cdn.brandfetch.io/idmvyl-kop/w/820/h/820/theme/dark/logo.png?c=1bxid64Mup7aczewSAYMX&t=1792005013422)

## Colors

| Name | Hex | Theme |
| --- | --- | --- |
| Starship | #c7f433 | accent |
| Fern Frond | #4d5f1a | dark |
| White | #ffffff | light |

## Fonts

- var(--font-sans) — asset _(custom)_
- var(--font-sans) — asset _(custom)_

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_Source: <https://brandfetch.com/chain305.com>_
_See [/llms.txt](/llms.txt) for a full list of agent-readable pages, and [/auth.md](/auth.md) for how agents authenticate._