# Install chaos-client with Homebrew, Nix Client to communicate with Chaos DB API. Version 0.5.2 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:chaos-client ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install chaos-client ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#chaos ``` Evidence: nixpkgs package indexes: pkgs/by-name/ch/chaos/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:chaos-client - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.5.2 - **Source summary:** Client to communicate with Chaos DB API - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** MIT - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - chaos (cli) - chaos (alias) ## Build dependencies - go ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.5.2 - Local data: ok - Upstream repository: https://github.com/projectdiscovery/chaos-client - Upstream latest detected: v0.5.2 (current) - info: No package-manager update timestamp was available. ## 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 Notes broad file, network, media, or database tool signal. - **Geiger risk:** blue / medium - broad file, network, media, or database tool signal ## 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:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - chaos: installed executable or alias match | nixpkgs package indexes: pkgs/by-name/ch/chaos/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Related links - [Secret-risk packages](https://www.automicvault.com/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Language runtime packages](https://www.automicvault.com/pkg/language-runtime-packages/) - Matched language runtime, compiler, or interpreter metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [go](https://www.automicvault.com/pkg/brew/go/) - Build dependency declared by Homebrew. - [findomain](https://www.automicvault.com/pkg/brew/findomain/) - Shares av.db curated category or tags: cli, dns, reconnaissance, security, subdomain-enumeration. - [scilla](https://www.automicvault.com/pkg/brew/scilla/) - Shares av.db curated category or tags: cli, dns, go, reconnaissance, security. - [shuffledns](https://www.automicvault.com/pkg/brew/shuffledns/) - Shares av.db curated category or tags: cli, dns, reconnaissance, security, subdomain-enumeration. - [dnsmap](https://www.automicvault.com/pkg/brew/dnsmap/) - Shares av.db curated category or tags: cli, dns, reconnaissance, security, subdomain-enumeration. - [favirecon](https://www.automicvault.com/pkg/brew/favirecon/) - Shares av.db curated category or tags: cli, go, reconnaissance, security. - [gau](https://www.automicvault.com/pkg/brew/gau/) - Shares av.db curated category or tags: cli, go, reconnaissance, security. - [subfinder](https://www.automicvault.com/pkg/brew/subfinder/) - Shares av.db curated category or tags: cli, reconnaissance, security, subdomain-enumeration. - [amass](https://www.automicvault.com/pkg/brew/amass/) - Shares av.db curated category or tags: cli, reconnaissance, security. ## Combined YAML source View the package source record on GitHub. [combined/chaos-client.yml](https://github.com/automic-vault/db/blob/main/combined/chaos-client.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph