<img src="https://docs.keploy.io/img/keploy-logo-dark.svg?s=200&v=4" height="80" alt="Keploy Logo" /> <a href="https://trendshift.io/repositories/3262" target="_blank"> <img src="https://trendshift.io/api/badge/repositories/3262" alt="keploy%2Fkeploy | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/> </a> <h3 align="center">⚡️ API tests faster than unit tests, from user traffic ⚡️</h3> 🌟 The must-have tool for developers in the AI-Gen era for 90% test coverage 🌟

Keploy is a developer‑centric API and integration testing tool that auto‑generates tests and data‑mocks faster than unit tests.

It records API calls, database queries, and streaming events — then replays them as tests. Under the hood, Keploy uses eBPF to capture traffic at the network layer, but for you it’s completely code‑less and language‑agnostic.

🐰 Fun fact: Keploy uses itself for testing! Check out our swanky coverage badge:

Key Highlights

🎯 No code changes

Just run your app with keploy record. Real API + integration flows are automatically captured as tests and mocks. (Keploy uses eBPF under the hood to capture traffic, so you don’t need to add any SDKs or modify code.)

📹 Record and Replay complex Flows

Keploy can record and replay complex, distributed API flows as mocks and stubs. It's like having a very light-weight time machine for your tests—saving you tons of time!

👉 Read the docs on record-replay

🐇 Complete Infra‑Virtualization (beyond HTTP mocks)

Unlike tools that only mock HTTP endpoints, Keploy records databases (Postgres, MySQL, MongoDB), streaming/queues (Kafka, RabbitMQ), external APIs, and more.

It replays them deterministically so you can run tests without re‑provisioning infra.

👉 Read the docs on infra virtualisation

🧪 Combined Test Coverage

If you’re a developer, you probably care about statement and branch coverage — Keploy calculates that for you.

If you’re a QA, you focus more on API schema and business use‑case coverage — Keploy calculates that too. This way coverage isn’t subjective anymore.

👉 Read the docs on coverage

🤖 Expand API Coverage using AI

Keploy uses existing recordings, Swagger/OpenAPI Schema to find: boundary values, missing/extra fields, wrong types, out‑of‑order sequences, retries/timeouts.

This helps expand API Schema, Statement, and Branch Coverage.

👉 Read the docs on coverage

Other Capabilities

🌐 CI/CD Integration: Run tests with mocks anywhere you like—locally on the CLI, in your CI pipeline (Jenkins, Github Actions..) , or even across a Kubernetes cluster. Read more
🎭 Multi-Purpose Mocks: You can also use Keploy-generated Mocks, as server Tests!
📊 Reporting: Unified reports for API, integration, unit, and e2e coverage with insights directly in your CI or PRs.
🖥️ Console: A developer-friendly console to view, manage, and debug recorded tests and mocks.
⏱️ Time Freezing: Deterministically replay tests by freezing system time during execution. Read more
📚 Mock Registry: Centralized registry to manage, reuse, and version mocks across teams and environments. Read more

Quick Start

1. Install Keploy Agent

curl --silent -O -L https://keploy.io/install.sh && source install.sh

2. Record Test Cases

Start your app under Keploy to convert real API calls into tests and mocks.

keploy record -c "CMD_TO_RUN_APP"

Example for Python:

keploy record -c "python main.py"

3. Run Tests

Run tests offline without external dependencies.

keploy test -c "CMD_TO_RUN_APP" --delay 10

Resources

- 📘 Installation

- 🏁 QuickStarts

Languages & Frameworks (Any stack)

Because Keploy intercepts at the network layer (eBPF), it works with any language, framework, or runtime—no SDK required.

Note: Some of the dependencies are not open-source by nature because their protocols and parsings are not open-sourced. It's not supported in Keploy enterprise.

<img src="https://img.shields.io/badge/Go-00ADD8?logo=go&logoColor=white" /> <img src="https://img.shields.io/badge/Java-ED8B00?logo=openjdk&logoColor=white" /> <img src="https://img.shields.io/badge/Node.js-43853D?logo=node.js&logoColor=white" /> <img src="https://img.shields.io/badge/Python-3776AB?logo=python&logoColor=white" /> <img src="https://img.shields.io/badge/Rust-000000?logo=rust&logoColor=white" /> <img src="https://img.shields.io/badge/C%23-239120?logo=csharp&logoColor=white" /> <img src="https://img.shields.io/badge/C/C++-00599C?logo=cplusplus&logoColor=white" /> <img src="https://img.shields.io/badge/TypeScript-3178C6?logo=typescript&logoColor=white" /> <img src="https://img.shields.io/badge/Scala-DC322F?logo=scala&logoColor=white" /> <img src="https://img.shields.io/badge/Kotlin-7F52FF?logo=kotlin&logoColor=white" /> <img src="https://img.shields.io/badge/Swift-FA7343?logo=swift&logoColor=white" /> <img src="https://img.shields.io/badge/Dart-0175C2?logo=dart&logoColor=white" /> <img src="https://img.shields.io/badge/PHP-777BB4?logo=php&logoColor=white" /> <img src="https://img.shields.io/badge/Ruby-CC342D?logo=ruby&logoColor=white" /> <img src="https://img.shields.io/badge/Elixir-4B275F?logo=elixir&logoColor=white" /> <img src="https://img.shields.io/badge/.NET-512BD4?logo=dotnet&logoColor=white" />  <img src="https://img.shields.io/badge/gRPC-5E35B1?logo=grpc&logoColor=white" /> <img src="https://img.shields.io/badge/GraphQL-E10098?logo=graphql&logoColor=white" /> <img src="https://img.shields.io/badge/HTTP%2FREST-0A84FF?logo=httpie&logoColor=white" /> <img src="https://img.shields.io/badge/Kafka-231F20?logo=apachekafka&logoColor=white" /> <img src="https://img.shields.io/badge/RabbitMQ-FF6600?logo=rabbitmq&logoColor=white" /> <img src="https://img.shields.io/badge/PostgreSQL-4169E1?logo=postgresql&logoColor=white" /> <img src="https://img.shields.io/badge/MySQL-4479A1?logo=mysql&logoColor=white" /> <img src="https://img.shields.io/badge/MongoDB-47A248?logo=mongodb&logoColor=white" /> <img src="https://img.shields.io/badge/Redis-DC382D?logo=redis&logoColor=white" />

Questions?

Book a Live Demo / Enterprise Support

Want a guided walkthrough, dedicated support, or help planning enterprise rollout?

<a href="https://calendar.app.google/4ZKd1nz9A5wLuP4W7"> <img src="https://img.shields.io/badge/Request%20a%20Demo-Email-2ea44f?logo=gmail" /> </a>   <a href="https://join.slack.com/t/keploy/shared_invite/zt-357qqm9b5-PbZRVu3Yt2rJIa6ofrwWNg"> <img src="https://img.shields.io/badge/Chat%20with%20Us-Slack-4A154B?logo=slack&logoColor=white" /> </a> <!-- Optional: replace wit

Keploy

Install / Use

README