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Karate Labs

Open-source test automation, governed for AI-built software

Open source, MIT, trusted by 76 of the Fortune 500. API, UI, mocks and performance. One tool. Plain syntax. Zero boilerplate.

GitHub stars Latest release License Install for VS Code IntelliJ downloads Docs VeriQuant: insurance rating validation

Latest   Karate v2.1.3 released 27 Sep 2026  ·  On the blog: Every test-data tool generates the question. Ours ships the answer.

A whole API test. No code, no step definitions.

Feature: users API

  Scenario: create and fetch a user
    Given url baseUrl + '/users'
    And request { name: 'Ana', email: 'ana@example.com' }
    When method post
    Then status 201
    And match response == { id: '#number', name: 'Ana', email: '#string' }

API, UI, mocks and performance tests share one syntax, run in parallel, and produce a report your whole team can read.

Get started at docs.karatelabs.io

Watch: Safe to ship (2:35)

When AI writes the code and the tests

Generation got cheap. Knowing what's safe to ship didn't. Karate governs it, on the same open-source engine.

Ship faster, proven Govern AI-written code Own your proof

We publish our own failing grade

Our reference API, graded by our own tooling, in public, on every commit. No login, no demo request.

The graded spec
governance governance index design proven-ness

The paired run
contract scenarios matched operations not tested last contract run

Open the governance report · Open the contract report · How it is computed

The Karate Labs family

Karate: the open-source engine Karate Agent IDE and Xplorer Karate Enterprise VeriQuant

"Guidewire decided to leverage Karate Labs for our Testing Framework: a powerful, open-source, industry-standard technology designed to make testing automation simple and accessible."
Will Murphy, VP, Global Technology Alliances, Guidewire


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    Test Automation Made Simple

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  2. karate-examples karate-examples Public

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  3. karate-todo karate-todo Public

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  4. karate-agent-examples karate-agent-examples Public

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