# oasdiff を Homebrew, MacPorts でインストール

oasdiff のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:oasdiff
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install oasdiff
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install oasdiff
```

  証拠: MacPorts ports tree: devel/oasdiff/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

## パッケージ情報

- **パッケージキー:** brew:oasdiff
- **パッケージマネージャ:** Homebrew
- **バージョン:** 1.27.0
- **ソース概要:** OpenAPI Diff and Breaking Changes
- **ホームページ:** <https://www.oasdiff.com/>
- **リポジトリ:** <https://github.com/oasdiff/oasdiff>
- **最終更新:** 2026-07-30T21:08:37Z
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- oasdiff (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 1.27.0
## プロジェクトの歴史と使われ方

oasdiff is a Go command-line and library toolchain for comparing OpenAPI specifications, generating diffs and changelogs, and detecting breaking API changes. It is aimed at API teams that want contract changes to fail CI or receive review before release.

### プロジェクトの歴史

The GitHub repository was created on February 10, 2021. The project grew from a CLI that compares OpenAPI specs into a broader workflow with GitHub Actions, hosted side-by-side reviews, language-localized change messages, and support for OpenAPI 3.0 and 3.1.

### 採用の歴史

oasdiff's adoption path is tied to CI and pull-request review rather than a runtime ecosystem. The official GitHub Action compares a pull request's OpenAPI document with the base branch, emits GitHub annotations, and can fail builds when breaking changes are detected.

### 使われ方

Developers run commands such as oasdiff diff, oasdiff breaking, and oasdiff changelog against two OpenAPI files or URLs. The tool supports machine-readable JSON/YAML output, human-readable text or Markdown, and HTML reports, making it suitable for both automated gates and reviewer-facing summaries.

### パッケージ好きにとっての重要性

oasdiff is significant because it packages API compatibility policy as a normal developer tool: installable by Homebrew, Go, curl, Docker, and GitHub Actions, and usable in the same CI loops that already protect tests and linting.

### タイムライン

- 2021-02-10: oasdiff/oasdiff repository was created.
- 2026-06-28: GitHub release v1.21.0 was published.
- The documentation describes Homebrew, curl, Docker, Go install, and prebuilt binary installation routes.

### Related projects

- The oasdiff-action repository packages the CLI for GitHub Actions. The project is also tied to the OpenAPI Specification ecosystem and to the oasdiff.com review workflow for side-by-side API contract review.

### ソース

- <https://api.github.com/repos/oasdiff/oasdiff>
- <https://formulae.brew.sh/formula/oasdiff>
- <https://github.com/oasdiff/oasdiff>
- <https://github.com/oasdiff/oasdiff-action>
- <https://github.com/oasdiff/oasdiff/blob/main/docs/BREAKING-CHANGES.md>
- <https://github.com/oasdiff/oasdiff/releases>
- <https://www.oasdiff.com/docs/getting-started>
- <https://www.oasdiff.com/docs/github-action>


## セキュリティノート

oasdiff に一致するローカルシークレット処理マニフェストは見つかりませんでした。将来の対応で安定したパッケージ URL を使えるよう、Nucleus パッケージメタデータはここに公開されています。


## 他のパッケージマネージャ記録

- MacPorts - oasdiff: normalized package name match | MacPorts ports tree: devel/oasdiff/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/oasdiff.yml](https://github.com/mxcl/pkgdb/blob/main/combined/oasdiff.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph