Keploy

Overview

Keploy is an open-source platform for creating safe, isolated production sandboxes for API, integration, and end-to-end testing. It records real request and response flows, virtualizes downstream dependencies, and replays them deterministically to verify changes.

Key Features

• Captures real API traffic from production, staging, or local environments with zero code changes and records request and response flows.
• Creates isolated mocks for databases, Kafka, Redis, and third-party APIs so downstream dependencies can be replayed as-is.
• Deduplicates flows and filters volatile fields such as timestamps, IDs, and random tokens for deterministic replay.
• Generates editable test artifacts with assertions for schemas, status codes, and key fields, and can run them as API, integration, end-to-end, or contract suites.
• Replays tests in CI/CD, Kubernetes, or local environments with mock dependencies and time-freeze controls.
• Provides coverage reports, regression alerts on Slack, email, or webhooks, and AI-assisted bug detection.

Use Cases

• Verify application changes against recorded production traffic before merging or releasing.
• Run deterministic API and integration tests in CI/CD or Kubernetes without shared infrastructure bottlenecks.
• Generate and maintain API test suites using real traffic, schemas, and application context.
• Surface regressions and likely root causes with coverage reports, alerts, and automated assertions.

Getting Started

• Use the Keploy documentation and quickstarts to get up and running.

Deployment & Requirements

• Runs locally, in CI/CD, or across Kubernetes.
• Supports self-hosted and Kubernetes deployment options.

Before You Adopt

• License: Apache-2.0. Review its terms before using, modifying, or distributing the project.
• Captured traffic can be kept inside your environment by running a self-hosted data plane.