marsclaw

<p align="center"> </p>

<p align="center"> <a href="#quick-start">Quick Start</a> · <a href="#features">Features</a> · <a href="#comparison">Comparison</a> · <a href="#configuration">Configuration</a> · <a href="#architecture">Architecture</a> · <a href="#roadmap">Roadmap</a> </p>

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18MB binary · <50MB RAM · Sub-second startup · Zero CVEs

MarsClaw is a personal AI agent runtime written in Go. It connects to Claude, GPT, Gemini, and local models to help you code, automate tasks, and orchestrate multi-agent workflows — all from a single binary with no dependencies.

$ marsclaw "add error handling to main.go"

⚡ read_file
✓ read_file
⚡ edit_file
✓ edit_file

Added error wrapping with fmt.Errorf to all three return paths in main().

── claude-sonnet-4 │ 1.2K in / 523 out │ $0.012 session ──

# Install
go install github.com/marsstein/marsclaw/cmd/marsclaw@latest

# Or download a binary
curl -sSfL https://marsclaw.dev/install.sh | sh

# Set your API key (pick one)
export GEMINI_API_KEY="..."       # Google — use your GCP credits
export ANTHROPIC_API_KEY="sk-ant-..."  # Anthropic
export OPENAI_API_KEY="sk-..."         # OpenAI

# Interactive mode
marsclaw

# Single prompt
marsclaw "explain this codebase"

# Web UI (access from any device)
marsclaw serve --addr :8080

# Telegram bot
export TELEGRAM_BOT_TOKEN="..."
marsclaw telegram

# Use with Gemini (burns GCP credits, not a separate bill)
marsclaw -m gemini-2.5-flash "explain this code"

# Use with OpenAI
marsclaw -m gpt-4o "explain this code"

# Use with local Ollama (free, fully offline)
marsclaw -m llama3.1 "explain this code"

# Discord bot
export DISCORD_BOT_TOKEN="..."
marsclaw discord

# Slack bot
export SLACK_BOT_TOKEN="xoxb-..."
marsclaw slack

| | OpenClaw | PicoClaw | ZeroClaw | MarsClaw | |---|---------|----------|----------|:------------:| | Language | TypeScript | Go