endlesstesting

AI-powered A/B testing from the command line. Endless Testing generates variants, allocates traffic with Thompson sampling, and auto-evaluates winners — no manual intervention needed.

Install

npm install -g endlesstesting

Quick start

# 1. Authenticate with your API key (get one at app.endlesstesting.ai)
endlesstesting auth et_live_abc123

# 2. Register your domain and get the SDK snippet
endlesstesting init

# 3. Start a test run (creates 5 AI-generated tests)
endlesstesting run https://example.com/pricing

# 4. Check test status
endlesstesting status

# 5. View results (impressions, conversions, uplift)
endlesstesting results

Commands

| Command | Description | |---------|-------------| | auth <key> | Authenticate with your API key | | auth --status | Check authentication status | | auth --logout | Remove stored API key | | init | Register a domain and get the SDK snippet | | run <url> | Start a new AI test run for a page | | status | List test runs and their status | | results | Show variant performance data | | stop | Activate kill switch (stop all tests) | | stop <id> | Pause a specific test | | stop --resume | Resume tests / deactivate kill switch | | mcp | Start the MCP server for AI coding tools | | docs | Open the documentation in your browser |

MCP setup

Use Endless Testing from Claude Code, Cursor, or any MCP-compatible tool.

Claude Code (~/.claude.json):

{
  "mcpServers": {
    "endlesstesting": {
      "command": "npx",
      "args": ["endlesstesting", "mcp"]
    }
  }
}

Cursor (.cursor/mcp.json):

{
  "mcpServers": {
    "endlesstesting": {
      "command": "npx",
      "args": ["endlesstesting", "mcp"]
    }
  }
}

Documentation

Full docs at docs.endlesstesting.ai.

License

Endless Testing License v1.0 -- free for individuals and teams of 3 or fewer.