{"slug": "keploy-an-open-source-api-and-integration-testing-tool", "title": "Keploy – an open-source API and integration testing tool", "summary": "Keploy, an open-source API and integration testing tool, auto-generates tests and data mocks by recording real API calls, database queries and streaming events and replaying them deterministically, using eBPF to capture traffic at the network layer without SDKs or code changes. Keploy records databases including Postgres, MySQL and MongoDB and queues including Kafka and RabbitMQ, and calculates statement, branch, API schema and business use-case coverage; developers run it via `keploy record -c \"CMD_TO_RUN_APP\"` and `keploy test -c \"CMD_TO_RUN_APP\" --delay 10`, with CI/CD integration for Jenkins, GitHub Actions and Kubernetes. Keploy notes that some dependencies are not open-source because their protocols and parsings are not open-sourced, and that these are not supported in Keploy enterprise.", "body_md": "🌟 The must-have tool for developers in the AI-Gen era for 90% test coverage 🌟\n\n[Keploy](https://keploy.io) is a **developer‑centric API and integration testing tool** that auto‑generates **tests and data‑mocks** faster than unit tests.\n\nIt 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**.\n\n🐰 **Fun fact:** Keploy uses itself for testing! Check out our swanky coverage badge:   \n\nJust 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.)*\n\nKeploy 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!\n\n👉 [Read the docs on record-replay](https://keploy.io/docs/keploy-explained/introduction/)\n\nUnlike tools that only mock HTTP endpoints, Keploy records **databases** (Postgres, MySQL, MongoDB), **streaming/queues** (Kafka, RabbitMQ), external APIs, and more.\n\nIt replays them deterministically so you can run tests without re‑provisioning infra.\n\n👉 [Read the docs on infra virtualisation](https://keploy.io/docs/keploy-explained/how-keploy-works/)\n\nIf you’re a **developer**, you probably care about *statement* and *branch* coverage — Keploy calculates that for you.\n\nIf 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.\n\nKeploy uses existing recordings, Swagger/OpenAPI Schema to find: boundary values, missing/extra fields, wrong types, out‑of‑order sequences, retries/timeouts.\n\nThis helps expand API Schema, Statement, and Branch Coverage.\n\n- \n🌐 **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](https://keploy.io/docs/running-keploy/api-testing-cicd/)\n- \n🎭 **Multi-Purpose Mocks** : You can also use Keploy-generated Mocks, as server Tests!\n- \n📊 **Reporting:** Unified reports for API, integration, unit, and e2e coverage with insights directly in your CI or PRs.\n- \n🖥️ **Console:** A developer-friendly console to view, manage, and debug recorded tests and mocks.\n- \n⏱️ **Time Freezing:** Deterministically replay tests by freezing system time during execution.[Read more](https://keploy.io/docs/keploy-cloud/time-freezing/)\n- \n📚 **Mock Registry:** Centralized registry to manage, reuse, and version mocks across teams and environments.[Read more](https://keploy.io/docs/keploy-cloud/mock-registry/)\n\n```\ncurl --silent -O -L https://keploy.io/install.sh && source install.sh\n```\n\nStart your app under Keploy to convert real API calls into tests and mocks.\n\n```\nkeploy record -c \"CMD_TO_RUN_APP\"\n```\n\nExample for Python:\n\n```\nkeploy record -c \"python main.py\"\n```\n\nRun tests offline without external dependencies.\n\n```\nkeploy test -c \"CMD_TO_RUN_APP\" --delay 10\n```\n\n### - 📘 [Installation](https://keploy.io/docs/server/installation/)\n\n### - 🏁 [QuickStarts](https://keploy.io/docs/quickstart/quickstart-filter/)\n\nBecause Keploy intercepts at the **network layer (eBPF)**, it works with **any language, framework, or runtime**—no SDK required.\n\nNote: 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.\n\nWant a guided walkthrough, dedicated support, or help planning enterprise rollout?\n\nPrefer a calendar invite? Mention your availability in the email—we’ll send a **calendar invite** right away.\n\n- 📘 [Documentation](https://keploy.io/docs/) — Explore the full docs\n- 💬 [Slack Community](https://join.slack.com/t/keploy/shared_invite/zt-3zcnuqfgl-WYK1NMhslVHsCtNcA1ULwA) — Join the conversation\n- 📜 [Contribution Guidelines](https://keploy.io/docs/keploy-explained/contribution-guide/)\n- ❤️ [Code of Conduct](https://github.com/keploy/keploy/blob/main/CODE_OF_CONDUCT.md)\n- 📢 [Blog](https://keploy.io/blog/) — Read articles and updates\n\nWhether you're new or experienced, your input matters. Help us improve Keploy by contributing code, reporting issues, or sharing feedback.\n\nTogether, let's build better testing tools for modern applications.", "url": "https://wpnews.pro/news/keploy-an-open-source-api-and-integration-testing-tool", "canonical_source": "https://github.com/keploy/keploy", "published_at": "2026-10-25 09:12:28+00:00", "updated_at": "2026-10-25 09:42:33.254911+00:00", "lang": "en", "topics": ["developer-tools", "ai-tools"], "entities": ["Keploy", "Postgres", "MySQL", "MongoDB", "Kafka", "RabbitMQ", "Jenkins", "GitHub Actions"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/keploy-an-open-source-api-and-integration-testing-tool", "markdown": "https://wpnews.pro/news/keploy-an-open-source-api-and-integration-testing-tool.md", "text": "https://wpnews.pro/news/keploy-an-open-source-api-and-integration-testing-tool.txt", "jsonld": "https://wpnews.pro/news/keploy-an-open-source-api-and-integration-testing-tool.jsonld"}}