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clipmyhorse/openapi-bc-checker
==============================

OpenAPI Backward Compatibility Checker

1.0.0(6mo ago)04.8k↓82%MITPHPPHP ^8.1CI passing

Since Dec 9Pushed 6mo agoCompare

[ Source](https://github.com/ClipMyHorseTV/openapi-bc-checker)[ Packagist](https://packagist.org/packages/clipmyhorse/openapi-bc-checker)[ RSS](/packages/clipmyhorse-openapi-bc-checker/feed)WikiDiscussions main Synced 2d ago

READMEChangelog (1)Dependencies (8)Versions (3)Used By (0)

OpenAPI BC Checker
==================

[](#openapi-bc-checker)

A command-line tool for detecting backward compatibility (BC) breaking changes in OpenAPI specifications.

Features
--------

[](#features)

- Compare two OpenAPI specification files (JSON or YAML)
- Compare OpenAPI specs between two git commits
- Detect various types of BC breaks:
    - Removed endpoints
    - Removed operations (HTTP methods)
    - Removed or changed required parameters
    - Removed or changed responses
    - Schema changes (property type changes, new required properties)
    - Request body changes
- Detect minor and patch changes (following Semver)

Installation
------------

[](#installation)

```
composer install
```

For more installation options including PHAR distribution, see the [Installation Guide](docs/installation.md).

Quick Start
-----------

[](#quick-start)

```
./bin/openapi-bc-checker old-spec.yaml new-spec.yaml
```

Documentation
-------------

[](#documentation)

- [Usage Guide](docs/Usage.md) - File mode, Git mode, and exit codes
- [Examples](docs/Examples.md) - Sample specifications for major, minor, and patch changes
- [BC Break Detection](docs/Detection.md) - Complete list of detected changes and example output
- [Development](docs/Development.md) - Running tests, linters, and building the PHAR

License
-------

[](#license)

This project is licensed under the **MIT License**.

Copyright (c) 2025 ClipMyHorse.TV Services & Development GmbH

See the [LICENSE](LICENSE) file for the full license text.

###  Health Score

38

—

LowBetter than 83% of packages

Maintenance67

Regular maintenance activity

Popularity23

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity45

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

206d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/4996022?v=4)[Florian Krämer](/maintainers/floriankraemer)[@floriankraemer](https://github.com/floriankraemer)

---

Top Contributors

[![floriankraemer](https://avatars.githubusercontent.com/u/4996022?v=4)](https://github.com/floriankraemer "floriankraemer (2 commits)")

###  Code Quality

TestsPHPUnit

Static AnalysisPHPStan

Code StylePHP\_CodeSniffer

Type Coverage Yes

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