# Install cassowary with Homebrew, Nix Modern cross-platform HTTP load-testing tool written in Go. Version 0.19.0 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:cassowary ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install cassowary ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#cassowary ``` Evidence: nixpkgs package indexes: pkgs/by-name/ca/cassowary/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:cassowary - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.19.0 - **Source summary:** Modern cross-platform HTTP load-testing tool written in Go - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** MIT - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - cassowary (cli) - cassowary (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: 0.19.0 - Local data: ok - Upstream repository: https://github.com/rogerwelin/cassowary - Upstream latest detected: v0.19.0 (current) - info: No package-manager update timestamp was available. ## Project history and usage Cassowary is a Go HTTP/S load-testing CLI for developers, testers, and sysadmins. Its README positions it as a cross-platform tool inspired by k6, ab, and httpstat. ### Project history The official README emphasizes a single binary, Go implementation, and importable module design. The project packages both a CLI and a library surface, with release binaries and a documented Go module path. ### Adoption history Adoption is niche and developer-tool focused. The README documents installation through GitHub releases, Homebrew on macOS, Docker, Arch/Manjaro AUR, Nix/NixOS, and RPM-building support, and it advertises an Awesome Go mention. Homebrew analytics show 119 installs in the last 365 days in the formula API. ### How it is used Typical use is `cassowary run` with a URL, concurrency, and request count. The README documents standard load tests, file slurp mode, JSON/CSV metrics export, Prometheus Pushgateway export, CloudWatch metrics, histograms, boxplots, POST data, durations, custom headers, x509 authentication, and distributed load testing. ### Why package nerds care Cassowary is package-nerd interesting as a compact Go alternative to older HTTP benchmark tools: it offers one static-ish cross-platform binary, modern metrics outputs, and package-manager distribution without a service runtime. ### Timeline - v0.10.0 and earlier: File slurp mode used its own command, according to the README note. - 2026: Homebrew formula packages v0.19.0 from the official GitHub release archive. ### Related projects - The README names k6, ab, and httpstat as inspirations. - Prometheus Pushgateway and AWS CloudWatch are documented metrics export targets. ### 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:** cassowary - **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 - cassowary: normalized package name match | nixpkgs package indexes: pkgs/by-name/ca/cassowary/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [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. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [go](https://www.automicvault.com/pkg/brew/go/) - Build dependency declared by Homebrew. - [goku](https://www.automicvault.com/pkg/brew/goku/) - Shares av.db curated category or tags: cli, developer-tools, http, load-testing, testing. - [xk6](https://www.automicvault.com/pkg/brew/xk6/) - Shares av.db curated category or tags: cli, developer-tools, go, load-testing, testing. - [artillery](https://www.automicvault.com/pkg/brew/artillery/) - Shares av.db curated category or tags: cli, developer-tools, load-testing, testing. - [gor](https://www.automicvault.com/pkg/brew/gor/) - Shares av.db curated category or tags: cli, developer-tools, go, http, load-testing. - [locust](https://www.automicvault.com/pkg/brew/locust/) - Shares av.db curated category or tags: cli, developer-tools, load-testing, testing. - [vegeta](https://www.automicvault.com/pkg/brew/vegeta/) - Shares av.db curated category or tags: cli, developer-tools, go, http, load-testing. - [hey](https://www.automicvault.com/pkg/brew/hey/) - Shares av.db curated category or tags: cli, developer-tools, http, load-testing, testing. - [k6](https://www.automicvault.com/pkg/brew/k6/) - Shares av.db curated category or tags: cli, developer-tools, go, load-testing, testing. - [tsung](https://www.automicvault.com/pkg/brew/tsung/) - Local package facts share a topical domain. Shared terms: cli, developer, developer-tools, http, load. ## Combined YAML source View the package source record on GitHub. [combined/cassowary.yml](https://github.com/automic-vault/db/blob/main/combined/cassowary.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