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Command Line Interface

Index provides a convenient command line interface (CLI) that allows you to interact with the browser agent through your terminal.

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Features

The Index CLI offers:

  • Browser state persistence between sessions
  • Follow-up messages with support for “give human control” action
  • Real-time streaming updates
  • Beautiful terminal UI using Textual

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Getting Started with CLI

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Prerequisites

Make sure you have Index installed:

pip install lmnr-index

# Install playwright
playwright install chromium

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Running the CLI

You can run the CLI with the following command:

index run

Remember to set API key for the selected model in the .env file.

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Interactive Mode

When you run the CLI, you’ll enter interactive mode:

Loaded existing browser state
╭--------------------– Interactive Mode ---------------------╮
│ Index Browser Agent Interactive Mode                       │
│ Type your message and press Enter. The agent will respond. │
│ Press Ctrl+C to exit.                                      │
╰------------------------------------------------------------╯

Choose an LLM model:
1. Gemini 2.5 Pro
2. Gemini 2.5 Flash
3. Claude 3.7 Sonnet
4. OpenAI o4-mini
Select model [1/2/3/4] (1): 4
Using OpenAI model: o4-mini
Loaded existing browser state

Your message: go to lmnr.ai, summarize pricing page

Agent is working...
Step 1: Opening lmnr.ai
Step 2: Opening Pricing page
Step 3: Scrolling for more pricing details
Step 4: Scrolling back up to view pricing tiers
Step 5: Provided concise summary of the three pricing tiers

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Model Selection

The CLI allows you to choose between different LLM models:

  1. Gemini 2.5 Pro (default) - Best for complex reasoning tasks that require fast execution
  2. Gemini 2.5 Flash - Good performance and fast execution, very cost effective
  3. Claude 3.7 Sonnet - Best for complex reasoning tasks
  4. OpenAI o4-mini - Good alternative with strong capabilities

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Browser State Persistence

The CLI automatically maintains browser state between sessions, which means:

  • Login sessions are preserved
  • Cookies are maintained
  • Site preferences are remembered

This makes it convenient for tasks that require authentication or maintaining context across multiple runs.

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Stopping the Agent

You can exit the CLI at any time by pressing Ctrl+C.