SpecDiff

SpecDiff is a web app that continuously monitors your API contract (OpenAPI/AsyncAPI/GraphQL schema) and flags breaking changes with a blunt, actionable report. It pulls specs from GitHub/GitLab or directly from your gateway, then runs semantic diffs (not just text diffs) to identify removals, type changes, enum narrowing, auth changes, and behavior hints via example payload drift. It generates a “blast radius” view by mapping endpoints to known consumers (from logs or service catalogs) and produces a release checklist: version bump recommendation, migration notes, and suggested deprecation windows. This is not a full API management suite; it’s a focused guardrail for teams shipping fast and accidentally breaking integrations. Pricing is per API/spec with team seats, aimed at companies that already have CI but lack reliable contract governance.