Schemaguard

Schemaguard is an open-source CLI tool designed to detect breaking changes in OpenAPI specifications, preventing disruptions to API consumers before deployment. It compares API schemas, highlights breaking and non-breaking differences, and can block deployments in CI/CD pipelines if critical changes are detected. With features such as spec linting, JSON output for programmatic use, and integration into GitHub Actions, it supports robust CI workflows for API developers and teams.