install

Additional install commands

macOS

Homebrewverified · 100%

brew install oauth2c

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install oauth2c

MacPorts ports tree · security/oauth2c/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#oauth2c

nixpkgs package indexes · pkgs/by-name/oa/oauth2c/package.nix · source: api.github.com

Windows

Scoopverified · 92%

scoop install main/oauth2c

Scoop official bucket manifest trees · bucket/oauth2c.json · source: api.github.com

overview

Package summary

User-friendly CLI for OAuth2

Project links

Commands and aliases

oauth2c

history

Project history and usage

oauth2c is a Go command-line client for exercising OAuth 2.0 and OpenID Connect flows against authorization servers. Its package-nerd appeal is that it packages a large cross-section of OAuth client behavior into one executable: authorization code, device, client credentials, JWT bearer, token exchange, refresh-token flows, PKCE, JARM, PAR, DPoP, RAR, private-key JWT, client-secret modes, and mutual-TLS-related endpoints.

Project history

The public GitHub repository was created on 2022-06-27 under the Cloudentity lineage and later appears under SecureAuthCorp on GitHub, while Homebrew still records the homepage as the Cloudentity repository URL. The README presents oauth2c as a tool for making token-fetching experiments easier across basic and advanced OAuth/OIDC profiles rather than as a provider-specific helper.

The release train reached v1.20.0 on 2026-04-29, with prebuilt release assets for Darwin and Linux architectures. That release metadata, combined with the small Go codebase and Homebrew source build, shows oauth2c evolving as a compact protocol-workbench CLI rather than a full identity platform.

Adoption history

Homebrew core packaged oauth2c as a normal formula with the `oauth2c` executable, Go as the build dependency, and version 1.20.0 in the 2026-07-01 formula JSON. Homebrew analytics for that formula recorded 357 installs over 365 days, which points to niche but real use among developers and identity engineers.

The GitHub repository metadata recorded 925 stars and 50 forks, a stronger adoption signal than most one-purpose OAuth CLIs. Its README also links to Repology packaging status, indicating that the project is tracked beyond Homebrew.

How it is used

Developers use oauth2c to walk OAuth and OIDC flows from a terminal, often with a local callback listener for browser-based authorization-code flows. The README explicitly notes the default localhost callback URL, the option to suppress browser automation, request tracing, and `--silent` output for CI/CD or scripting.

The tool is useful when debugging authorization-server behavior because it exposes knobs that many SDKs hide: response types and modes, token endpoint authentication methods, signed or encrypted request objects, pushed authorization requests, proof-of-possession tokens, scopes, audiences, resources, and explicit endpoint overrides.

Why package nerds care

oauth2c is a good example of a package-manager-friendly security/developer tool: one static-feeling Go CLI, no runtime dependencies in Homebrew, broad standards coverage, and prebuilt upstream binaries. For av.db, it sits at the intersection of OAuth protocol testing, identity-provider integration, and shell automation.

Timeline

2022-06-27: the public GitHub repository was created.
2026-04-29: GitHub release v1.20.0 was published.
2026-07-01: Homebrew core formula metadata listed stable version 1.20.0 and the `oauth2c` executable.

Related projects

oauth2c overlaps with provider-specific token helpers such as Google's oauth2l, but it targets generic OAuth 2.0, OIDC, FAPI, and JWT profiles instead of a single cloud provider.

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 post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 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
`oauth2c`	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 version1.20.0

manager updated2026-07-04

local dataok

upstreamcurrent

latest detectedv1.20.0

https://github.com/SecureAuthCorp/oauth2c

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:oauth2c
Version	1.20.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/oauth2c
Homepage	https://github.com/SecureAuthCorp/oauth2c
Repository	https://github.com/SecureAuthCorp/oauth2c
Upstream docs	https://github.com/cloudentity/oauth2c#readme
License	Apache-2.0
Source archive	https://github.com/SecureAuthCorp/oauth2c/archive/refs/tags/v1.20.0.tar.gz
Last updated	2026-07-04T16:53:44+09:00
Pulse	updated
Build dependencies	go
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, 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	oauth2c
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.

Nix95%

oauth2c

nix profile install nixpkgs#oauth2c

normalized package name match
Matched by: Oauth2c

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/oa/oauth2c/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

MacPorts95%

oauth2c

sudo port install oauth2c

normalized package name match
Matched by: Oauth2c

MacPorts ports tree · api.github.com · MacPorts ports tree: security/oauth2c/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

Scoop95%

main/oauth2c

scoop install main/oauth2c

normalized package name match
Matched by: Oauth2c

Scoop official bucket manifest trees · api.github.com · Scoop official bucket manifest trees: bucket/oauth2c.json from https://api.github.com/repos/ScoopInstaller/Main/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/oauth2c.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 oauth2c with Homebrew, MacPorts, Nix, scoop