install

Additional install commands

macOS

Homebrewverified · 100%

brew install flagd

local Homebrew formula metadata

overview

Package summary

Feature flag daemon with a Unix philosophy

Project links

Commands and aliases

flagd

history

Project history and usage

flagd is an OpenFeature-compliant feature flag evaluation engine and daemon designed around a Unix-style command-line interface rather than a bundled management UI.

Project history

The public GitHub release stream begins in June 2022. Upstream positions flagd as a ready-made open-source OpenFeature backend system: a separate process, sidecar, central service, or in-process engine for evaluating feature flags.

The documentation explicitly says flagd does not include a UI, management console, or persistence layer. Instead, it is configured through a POSIX-style CLI and supplied with flag definitions from files, HTTP endpoints, Kubernetes custom resources, or proto-compliant gRPC services.

By 2023 and 2024 the release train had split into related components such as flagd, core, flagd-proxy, and Kubernetes-oriented proxy artifacts, reflecting the project's role inside the broader OpenFeature ecosystem.

Adoption history

flagd's adoption path is tied to OpenFeature: applications use an OpenFeature SDK plus a flagd provider, while operations teams can run flagd as a binary, container image, service, sidecar, or Kubernetes-integrated component.

The quick-start workflow demonstrates containerized use on port 8013, JSON flag definitions, cURL evaluation calls, and live updates without restarting the daemon. This makes flagd attractive for teams that want vendor-neutral feature flag evaluation without committing to a hosted flag-management product.

How it is used

Typical CLI use starts flagd with a URI pointing at a local or remote flag definition. The daemon exposes evaluation APIs over HTTP or gRPC, watches flag definitions for changes, and supports boolean, string, number, and JSON flag values, targeting rules, progressive rollouts, and pseudorandom assignments for experiments.

The CLI reference lists ~/.agent.yaml as the default config file. The main commands include flagd start and flagd version.

Why package nerds care

flagd is package-nerd significant because it turns feature flags into a local daemon plus protocol boundary: install a binary, point it at flag data, wire it to OpenFeature providers, and keep flag evaluation independent of a SaaS control plane.

Its packaging also reflects contemporary cloud-native CLI distribution: GitHub releases, container images, Kubernetes integration, gRPC/HTTP APIs, OpenTelemetry-oriented observability, and a docs site generated from repository documentation.

Timeline

2022: First public GitHub release.
2023: 0.3.x through 0.6.x releases expanded the early daemon and proxy release train.
2024: 0.11.x releases continued alongside core and flagd-proxy components.
2025: 0.12.x releases published for flagd, core, and flagd-proxy.

Related projects

OpenFeature, OpenFeature SDKs, flagd providers, OpenFeature Operator, Kubernetes custom resources, OpenTelemetry.

Sources

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

narrow executable package without higher-risk signals

Signals

metadata:no-higher-risk-signals

Install behavior

No Homebrew bottle metadata was recorded.

Recommended review

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

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: ~/.agent.yaml

executables

Installed executables

Command	Kind	Exposure	Note
`flagd`	executable	indexed executable	Discovered from the local executable index.

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 generated2026-08-03

manager version0.16.1

manager updated2026-07-27

local dataunknown

upstreamnot available

latest detectednot detected

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:flagd
Version	0.16.1
Package manager	Homebrew
Homepage	https://flagd.dev
Repository	https://github.com/open-feature/flagd
Last updated	2026-07-27T15:40:04Z
Pulse	updated
Bottle	not recorded
Service	none declared

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/flagd.yml

Used sources

Geiger risk classifier
cross-ecosystem install command graph
curated configuration and credential file locations
curated package history
pkg.so package database
pkgdb category and tag curation

Install flagd with Homebrew