api-diff

Fast API compatibility reports for Go projects

A macOS app and command line tool for finding out what's new in Apple's SDKs, release by release.

OpenAPI breaking change detection CLI | API contract testing | prevent API breaking changes in CI/CD

Swagger UI plugin that highlights API changes inline: added, deleted, and updated operations, parameters, responses, and schema properties are marked directly in the Swagger UI, without leaving the docs.

GitHub Action: catch breaking API changes on every PR. Posts severity-graded comments with migration guides. 28 detection types.

API contract visualization tool that reconciles frontend intent, backend implementation, and runtime behavior — surfacing mismatches across your system boundaries.

🛡️ Automated API diffing and breaking-change detection for NestJS and Swagger.

Unified API contract governance, breaking-change analysis, schema-driven testing, runtime drift detection, traffic replay and performance regression for OpenAPI, GraphQL and gRPC.

Live demo: Delimit Action catches 23 breaking changes across 27 detection types on a real PR.

CLI for detecting client-breaking changes between OpenAPI JSON contracts (3.x), with actionable CI and Markdown reports.

Compare two OpenAPI 3 documents and categorize changes as breaking/non-breaking with JSON paths. Zero deps.

Offline API contract diff and replay toolkit for sanitized fixtures. Deterministic schemas, secret redaction, and field-level drift evidence.

Fork, push, and see Delimit catch breaking API changes in CI. Try it in 2 minutes.

Ready-to-use API monitoring configurations for Rumbliq — detect schema drift in third-party APIs

Rust CLI and GitHub Action for semantic public API breakage checks

Git diff for API behavior — capture, compare, and detect breaking changes in JSON APIs.

Detect breaking API changes before production with deterministic JSON/API contract diffing, risk scoring, and optional AI impact analysis.

Detects, classifies, and optionally summarizes breaking changes in OpenAPI/Swagger, GraphQL, and Protobuf/gRPC contracts using AI

Catch breaking OpenAPI changes before you merge: paste two specs, get a red/green breaking-vs-safe diff tree, in the browser.