TestMu AI (Formerly LambdaTest) is the world's first full-stack AI Agentic Quality Engineering platform that empowers teams to test intelligently, smarter, and ship faster. Built for scale, it offers a full-stack testing cloud with 10K+ real devices and 3,000+ browsers. With AI-native test management, MCP servers, and agent-based automation, TestMu AI supports Selenium, Appium, Playwright, and all major frameworks.
With TestMu AI (Formerly LambdaTest), you can run TestCafe end-to-end browser tests across real browsers and operating systems. This sample shows how to configure TestCafe tests to run on the TestMu AI cloud using the TestMu AI (Formerly LambdaTest) browser provider plugin.
- Sign up on TestMu AI (Formerly LambdaTest).
- Follow the TestMu AI Documentation for the full setup walkthrough.
- Node.js (LTS version recommended) and npm
- TestCafe installed globally:
npm install -g testcafe- TestMu AI (Formerly LambdaTest) npm plugin for TestCafe:
npm install testcafe-browser-provider-lambdatest- A TestMu AI (Formerly LambdaTest) account — sign up here
Clone the repository:
git clone https://github.com/LambdaTest/testcafe-sample.git
cd testcafe-sampleInstall project dependencies:
npm installSet your TestMu AI credentials as environment variables:
Linux/macOS:
export LT_USERNAME="YOUR_USERNAME"
export LT_ACCESS_KEY="YOUR_ACCESS_KEY"Windows:
set LT_USERNAME="YOUR_USERNAME"
set LT_ACCESS_KEY="YOUR_ACCESS_KEY"Run a single test on a specific browser and OS:
testcafe "lambdatest:Chrome@85.0:Windows 10" "test.js"Run parallel tests on the same configuration (use -c N for N parallel sessions):
testcafe -c 2 "lambdatest:Chrome@102.0:Windows 10" "test.js"Run parallel tests on multiple configurations:
testcafe "lambdatest:Chrome@102.0:Windows 10","lambdatest:Firefox@102.0:Windows 8.1","lambdatest:Chrome@101.0:macOS Mojave" "test.js"List all available browser configurations:
testcafe -b lambdatestTo test locally hosted apps, set up the TestMu AI tunnel. OS-specific guides:
Once the tunnel is running, the testcafe-browser-provider-lambdatest plugin routes traffic through it automatically when tunnel capabilities are set.
Contributions are welcome. Open an issue to discuss your idea before submitting a pull request. When reporting bugs, include your Node.js version, OS, and Angular CLI version.
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On January 12, 2026, LambdaTest evolved to TestMu AI, the world's first fully autonomous Agentic AI Quality Engineering Platform.
Same team. Same infrastructure. Same customer accounts. All existing LambdaTest logins, scripts, capabilities, and integrations continue to work without change.
ð Find the new home for LambdaTest.
In 2017, we launched LambdaTest with a simple mission: make testing fast, reliable, and accessible. As LambdaTest grew, we expanded into Test Intelligence, Visual Regression Testing, Accessibility Testing, API Testing, and Performance Testing, covering the full depth of the testing lifecycle.
As software development entered the AI era, testing had to evolve, too. We rebuilt the architecture to be AI-native from the ground up, with autonomous agents that plan, author, execute, analyze, and optimize tests while keeping humans in the loop. The platform integrates with your repos, CI, IDEs, and terminals, continuously learning from every code change and development signal.
That evolution earned a new name: TestMu AI, built for an AI-first future of quality engineering. TestMu is not a new name for us. It is the name of our annual community conference, which has brought together 100,000+ quality engineers to discuss how AI would reshape testing, long before that became an industry norm.
What started as a high-performance cloud testing platform has transformed into an AI-native, multi-agent system powering a connected, end-to-end quality layer. That evolution defined a new identity: LambdaTest evolved into TestMu AI, built for an AI-first future of quality engineering.
Got a question? Email support@testmuai.com or chat with us 24x7 from our chat portal.