MegaBrain CLI

An agentic coding assistant for your terminal. Ask in plain language, and it reads, edits and runs code in your project -- with 500+ models behind one account.

Website · Install · Gateway · Pricing

Install

npm install -g @getmegabrain/cli

Or run it once, without installing:

npx @getmegabrain/cli

Node.js 18 or later. The package pulls a single prebuilt binary for your platform.

Getting Started

Run megabrain in any project directory to launch the interactive TUI:

megabrain

Run a one-off task:

megabrain run "add input validation to the signup form"

Features

• Code generation -- describe what you want in natural language
• Terminal commands -- the agent can run shell commands on your behalf
• 500+ AI models -- through the MegaBrain Gateway, or your own provider keys
• MCP servers -- extend agent capabilities with the Model Context Protocol
• Multiple agents -- plan, code, review, or define your own
• Sessions -- resume previous conversations and export transcripts

Models and providers

Out of the box the only connected provider is the MegaBrain Gateway: sign in once and every model routes through it, with no provider API keys to manage.

Bringing your own keys works exactly as it does upstream. /connect in the TUI, or megabrain auth login, connects Anthropic, OpenAI, Google, GitHub Copilot, a local Ollama, or any OpenAI-compatible endpoint. Those providers appear alongside the gateway -- nothing is locked down.

Commands

| Command | Description | | -------------------------- | -------------------------- | | megabrain | Launch interactive TUI | | megabrain run "<task>" | Run a one-off task | | megabrain auth | Manage authentication | | megabrain models | List available models | | megabrain mcp | Manage MCP servers | | megabrain session list | List sessions | | megabrain session delete | Delete a session | | megabrain export | Export session transcripts |

Run megabrain --help for the full list.

What this is built on

MegaBrain CLI is a fork of Kilo CLI, which is itself a fork of OpenCode. Both are MIT licensed, and so is this. Our changes are kept as a reviewable patch set -- see MEGABRAIN.md in the repository.

Some internals still carry the upstream name on purpose: configuration lives in .kilo/ and ~/.config/kilo, and environment variables are KILO_*. Renaming them would break existing configs and make every upstream rebase more expensive than it is worth.

Links

• GitHub
• Website

License

MIT