Changelog

et command line

et is the command line. Install the binary, sign in with an email code, and operate a site from the terminal or from Claude Code, Codex, or the ChatGPT desktop app. The older npm CLI pages are marked replaced.

The routes et calls are on the API page.

v0.1.0 (2026-03-31)

Initial release of the Endless Testing CLI and MCP server.

CLI

• endlesstesting auth: API key authentication
• endlesstesting init: Interactive domain setup
• endlesstesting run: Launch AI-generated A/B tests
• endlesstesting status: View running tests
• endlesstesting results: View test performance
• endlesstesting stop: Kill switch
• endlesstesting mcp: Start MCP server

MCP Tools

• run_ab_test, get_test_status, get_results, stop_test, list_domains, get_domain_health

Backend

• API key authentication middleware
• Usage tracking and free tier enforcement
• Public SDK endpoints remain unauthenticated

Free Tier

• 5 concurrent tests
• 3 variants per test
• 10,000 MAU per month
• 1 domain