install

Additional install commands

macOS

Homebrewverified · 100%

brew install chaos-client

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#chaos

nixpkgs package indexes · pkgs/by-name/ch/chaos/package.nix · source: api.github.com

overview

Package summary

Client to communicate with Chaos DB API

Project links

Commands and aliases

chaos

history

Project history and usage

Chaos Client is ProjectDiscovery's command-line and Go library client for the Chaos DNS dataset API, used to query subdomains for a domain with a ProjectDiscovery Cloud API key.

Project history

ProjectDiscovery published chaos-client as a small Go client around its Chaos dataset API. The public GitHub repository was created in 2020, and its README describes the tool as a client for the Chaos dataset API with both CLI and library usage.

Adoption history

Adoption is tied to ProjectDiscovery's security-tool ecosystem: users install the `chaos` executable with `go install`, Homebrew distributes it as `chaos-client`, and Nix packages it as `chaos` according to the supplied package-manager facts.

How it is used

The CLI queries a domain for subdomains, can read domain lists, emit JSON, write output files, show counts, and use `PDCP_API_KEY` or `-key` for ProjectDiscovery Cloud authentication.

Why package nerds care

For package collectors, chaos-client is a typical modern Go security CLI: a thin API client, a single executable, source installs via `go install`, and package-manager aliases that differ from the upstream repository name.

Timeline

2020: Public GitHub repository created for projectdiscovery/chaos-client.
2020: Early v0.1.x tags established the Go CLI client line.
2026: Repository metadata still shows active maintenance and the README documents ProjectDiscovery Cloud API-key usage.

Related projects

ProjectDiscovery's Chaos service provides the dataset/API that this client queries.
Other ProjectDiscovery reconnaissance tools such as subfinder and httpx commonly appear in the same security automation workflows, though they are separate projects.

Sources

security posture

Risk level: blue

broad file, network, media, or database tool signal.

Risk classifier

blue risk · medium confidence · tool

Why

broad file, network, media, or database tool signal

Signals

text:client

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 8 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`chaos`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version0.5.2

manager updated

local dataok

upstreamcurrent

latest detectedv0.5.2

https://github.com/projectdiscovery/chaos-client

infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package key	brew:chaos-client
Version	0.5.2
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/chaos-client
Homepage	https://chaos.projectdiscovery.io
Repository	https://github.com/projectdiscovery/chaos-client
Upstream docs	https://docs.projectdiscovery.io/opensource/chaos/install
License	MIT
Source archive	https://github.com/projectdiscovery/chaos-client/archive/refs/tags/v0.5.2.tar.gz
Build dependencies	go
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	chaos-client
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix92%

chaos

nix profile install nixpkgs#chaos

installed executable or alias match
Matched by: Chaos

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ch/chaos/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/chaos-client.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install chaos-client with Homebrew, Nix