by dragonked2
A next-generation AI coding agent built for serious developers — blazing-fast terminal UI, multi-model AI orchestration, autonomous coding, swarm coordination, 40+ tools, and advanced agentic workflows.
# Add to your Claude Code skills
git clone https://github.com/dragonked2/alphacodeSee how alphacode compares with popular alternatives.
alphacode is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by dragonked2. A next-generation AI coding agent built for serious developers — blazing-fast terminal UI, multi-model AI orchestration, autonomous coding, swarm coordination, 40+ tools, and advanced agentic workflows. It has 95 GitHub stars.
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Clone the repository with "git clone https://github.com/dragonked2/alphacode" and add it to your Claude Code skills directory (see the Installation section above).
alphacode is primarily written in Rust. It is open-source under dragonked2 on GitHub, so you can review or fork the full source.
Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh alphacode against similar tools.
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AlphaCode is a free, open-source, terminal-native AI coding agent. Give it a goal in plain English and it inspects your project, plans the work, edits files, runs commands, executes tests, drives a real browser, controls your desktop, coordinates multiple agents in parallel, and reviews its own output — all from the command line.
Unlike most AI coding assistants, AlphaCode doesn't require you to bring your own API key to get started. It comes with a free built-in AI model provider already integrated, so you can go from install to "fix this bug" in one command, then upgrade to Claude, GPT, Gemini, or any other provider whenever you want.
It's built around one operating principle:
Make the smallest change that solves the problem — then verify it.
Think of AlphaCode as the execution layer between you and your AI models: instead of only discussing code, the agent works directly against the repository you opened.
flowchart LR
A["You<br/>Describe the goal"] --> B["Inspect<br/>Understand the repo"]
B --> C["Plan<br/>Choose the approach"]
C --> D["Execute<br/>Edit + run tools"]
D --> E["Verify<br/>Tests + self-review"]
E --> F["Report<br/>Changes + evidence"]
Most AI coding agents make you paste in an API key before they'll do anything. AlphaCode doesn't.
| 🆓 Free model provider built in | AlphaCode integrates a free AI lane out of the box — no OpenAI, Anthropic, or Google account required to try it. |
| 🔑 No API key required to start | Install, launch, and give it a task. That's it. |
| 💳 No credit card, no signup wall | You are never asked to pay or register before your first real task. |
| ⬆️ Upgrade anytime | Bring your own Claude, GPT, Gemini, Copilot, Cursor, OpenRouter, Bedrock, Azure, or any OpenAI-compatible key whenever you want more power — switch providers mid-session with Ctrl+T. |
# Install, then just run it. The free provider is already configured.
alphacode
This makes AlphaCode the fastest way for a new developer — or a curious first-time user — to try an autonomous AI coding agent with zero friction and zero cost.
| Capability | What it means |
|---|---|
| 🆓 Free AI, no API key needed | A built-in free model lane lets you start immediately — bring your own provider only if and when you want to. |
| 🧠 Model-agnostic | Connect Claude, GPT, Gemini, GitHub Copilot, Cursor, OpenRouter, Bedrock, Azure, or any OpenAI-compatible service. |
| 🐝 Swarm Mode | Break large tasks into parallel sub-tasks, execute them concurrently, then review the combined result. |
| 🛠 40+ built-in tools | Editing, search, shell execution, web access, browser control, desktop control, memory, sessions, scheduling, rendering, and more. |
| 🖥 Desktop Control | Cross-platform native desktop automation via accessibility APIs (Windows UIA, macOS AX, Linux AT-SPI2). |
| 🔌 MCP support | Model Context Protocol integration for extending tools via external servers. |
| ⚡ Rust-native | Small runtime footprint, fast startup, and efficient long-running sessions. |
| 💾 Persistent sessions | Resume work after interruptions, crashes, dropped connections, or terminal restarts. |
| 🛡 Safety controls | Destructive operations are blocked and risky actions pass through the permission layer. |
| 🎨 Terminal-first UX | Rich TUI, syntax highlighting, Mermaid diagrams, LaTeX math, image previews, progress, and live agent activity. |
AlphaCode is written in Rust and built to stay lightweight even when running many sessions at once — a real advantage over Node/Electron-based agents.
The figures below are historical benchmark snapshots retained for reproducibility and comparison. Treat them as directional rather than as current, universal measurements — see Reproducing these benchmarks for the full methodology.
Memory usage — one active session
| Tool | RAM | Relative to AlphaCode |
|---|---|---|
| 🥇 AlphaCode | 27.8 MB | 1.0× |
| Codex CLI | 140.0 MB | 5.0× |
| pi | 144.4 MB | 5.2× |
| Cursor Agent | 214.9 MB | 7.7× |
| Antigravity CLI | 243.7 MB | 8.8× |
| GitHub Copilot CLI | 333.3 MB | 12.0× |
| OpenCode | 371.5 MB | 13.4× |
| Claude Code | 386.6 MB | 13.9× |
Memory usage — ten concurrent sessions
| Tool | RAM | Relative to AlphaCode |
|---|---|---|
| 🥇 AlphaCode | 117.0 MB | 1.0× |
| Codex CLI | 334.8 MB | 2.9× |
| pi | 833.0 MB | 7.1× |
| Antigravity CLI | 1,021.2 MB | 8.7× |
| Cursor Agent | 1,632.4 MB | 14.0× |
| GitHub Copilot CLI | 1,756.5 MB | 15.0× |
| Claude Code | 2,300.6 MB | 19.7× |
| OpenCode | 3,237.2 MB | 27.7× |
For a meaningful benchmark, record:
See the benchmark methodology in the repository documentation for the full reproducibility process.
AlphaCode ships installers for Windows, macOS, and Linux, or you can build it from source. The free AI provider is available immediately after install — no extra configuration required.
Run in PowerShell:
iwr -useb https://raw.githubusercontent.com/dragonked2/alphacode/main/scripts/install.ps1 | iex
The installer:
alphacode.exePATHPin a version
iwr -useb https://raw.githubusercontent.com/dragonked2/alphacode/main/scripts/install.ps1 | iex -Version vX.Y.Z
Build from source
iwr -useb https://raw.githubusercontent.com/dragonked2/alphacode/main/scripts/install.ps1 | iex -FromSource
curl -fsSL https://raw.githubusercontent.com/dragonked2/alphacode/main/scripts/install.sh | bash
The installer downloads the platform archive, verifies its SHA-256 checksum, and installs the binary under ~/.local/bin/ by default.
Pin a version
curl -fsSL https://raw.githubusercontent.com/dragonked2/alphacode/main/scripts/install.sh \
| bash -s -- --version vX.Y.Z
Custom install location
export ALPHACODE_PREFIX="$HOME/.local"
curl -fsSL https://raw.githubusercontent.com/dragonked2/alphacode/main/scripts/install.sh | bash
Environment variables
| Variable | Default | Purpose |
|---|---|---|
ALPHACODE_PREFIX |
~/.local |
Installation prefix |
ALPHACODE_BIN_DIR |
$PREFIX/bin |
Binary directory |