e2e: Features & Overview

About

Open source AI testing framework.

e2e is a TypeScript end-to-end test runner. You choose how agentic each test is: fully deterministic with locators and assertions, fully driven by an agent from goals in natural language, or a mix of both. Tests run against a real browser, iOS simulator, or Android emulator, and verified agent steps replay from a cache without calling the model again. Free and open source under Apache-2.0.

Features & Use Cases

Deterministic cache replay for verified agent.act steps
Mix agent goals with Playwright-style locators and expect
Same API for web, iOS, and Android
e2e explore and e2e mcp for coding agents
Bring your own model; Apache-2.0 open source

MCP

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TesterArmy MCP

Connect Claude, Cursor, or any MCP client to the hosted TesterArmy MCP server over OAuth to create tests, start runs, and debug failures from your editor.

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