Open source alternative to Cursor, GitHub Copilot, Claude Code and Devin
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Build, research, and automate code changes with an open-source AI agent that runs on your own models and sandboxes every shell command by default.
AlysisCode's sandbox and bring-your-own-key model mean your code does not leave your machine or your own API provider. Run it against proprietary code, internal tools, or anything a compliance team would flag for third-party data routing.
If your code is not sensitive and you want the full polish of a commercial tool with dedicated support, Cursor or GitHub Copilot may serve you better.
Swap between OpenAI, Anthropic, Gemini, DeepSeek, or a local Ollama model per task without changing tools. Route architecture planning to a long-context model and code generation to a faster one in the same session.
If you work exclusively with one provider and have no need to switch models, the multi-provider configuration adds overhead without payoff.
Point AlysisCode at Ollama, LM Studio, or vLLM and the agent runs entirely on your hardware. Every core coding capability (file reads, diffs, terminal, rollback) works without a network call. Web search is optional and can be skipped when offline.
If you need the best code-generation quality and are willing to pay for cloud API access, a local model will underperform compared to frontier models like GPT-4o or Claude Sonnet.
Forge lets you set the goal and review the plan before anything runs. The permission model (readonly, review, auto, fullaccess) lets you keep human review in the loop at whatever level of automation you need. VS Code and JetBrains integrations keep the agent close to the editor.
If you need a fully autonomous agent that ships code to production without human review steps, a Devin-style cloud workflow is designed for that use case.
Paid AI coding assistants charge per seat every month, and all of them ship your code context to their own servers. When a pricing tier changes, when a model is deprecated, or when a compliance team flags data residency, you have no fallback except building from scratch.
The deeper issue is control. Most paid tools pick the model for you, sandbox nothing by default, and give the agent as much shell access as it wants. A single hallucinated command in a long coding session can delete a file or commit a breaking change without any review step in between.
Shell commands are isolated by the OS, not just the model: Seatbelt on macOS, Bubblewrap or Docker on Linux and WSL, and a native sandbox on Windows x64. Run `alysis sandbox doctor --smoke` to verify which sandbox mode is active. The model cannot instruct the agent to bypass it.
Connect OpenAI, Anthropic, Gemini, DeepSeek, OpenRouter, xAI, or any OpenAI-compatible endpoint such as Ollama, LM Studio, or vLLM. Switch providers per task or mix models: a fast model for code edits, a slower one for architecture reviews. No API key is required for local models.
Forge converts a high-level coding goal into a plan of dependent tasks, each with its own checks, before executing. You review the plan before any code changes land, and each task's result is verified before the next starts. Token-heavy by design; the README recommends starting with small goals.
The macOS (.dmg) and Windows (.exe) app ships with the full engine and adds a Code view with diff reader, built-in terminal, and rollback checkpoints; a Work view for documents (Word, spreadsheets, PDFs); a scheduled tasks runner; and an embedded browser. No CLI or Python installation required.
Any connected model can search the web using the agent's built-in search tool. No additional API key or browser extension is required beyond the base install. Works with local models running via Ollama or any OpenAI-compatible endpoint.
Alysis supports MCP servers alongside its built-in toolset. Add custom skills, plugins, and hooks in the Customize view of the desktop app or via the CLI config. VS Code and JetBrains editor integrations are available as preview extensions in the repository.
Cursor is an IDE built for AI-assisted coding; AlysisCode is an independent agent that runs from the terminal or a standalone desktop app without requiring any specific editor.
| Feature | AlysisCode | Cursor |
|---|---|---|
| License | Apache-2.0 | Proprietary |
| Self-hosting | Yes | No |
| Model providers | Any (OpenAI, Anthropic, Gemini, local) | Proprietary |
| Editor dependency | None | Cursor IDE required |
| Shell sandbox | OS-level by default | Not included |
| Forge planner | Yes | No |
AlysisCode is the better choice when you want model freedom, an OS-level sandbox, or the ability to run the agent from a terminal or desktop app without a specific IDE. Cursor is the better choice for developers who prioritize inline AI suggestions tightly integrated with an IDE-level editor experience.
GitHub Copilot is primarily a code completion and chat tool embedded in editors. AlysisCode is an agentic tool that plans and executes multi-step code changes with verified task outputs and a sandboxed shell.
| Feature | AlysisCode | GitHub Copilot |
|---|---|---|
| License | Apache-2.0 | Proprietary |
| Self-hosting | Yes | No |
| Agent vs completion | Full agent (plans, runs commands) | Inline completion and chat |
| Local model support | Yes | No |
| OS sandbox | Yes | No |
AlysisCode is the better choice for developers who need an agent to execute and verify multi-step code changes, run shell commands in a sandbox, or work with local models. GitHub Copilot is a better fit when you want fast inline completions in your existing editor without managing a separate agent runtime.
Both are terminal-based AI coding agents that support Anthropic models and MCP servers. Claude Code is Anthropic's own product; AlysisCode is independently built with Apache-2.0 and supports any OpenAI-compatible model.
| Feature | AlysisCode | Claude Code |
|---|---|---|
| License | Apache-2.0 | Proprietary |
| Self-hosting | Yes | No |
| Model providers | Any (OpenAI, Anthropic, Gemini, local) | Anthropic API or Claude subscription |
| Desktop app | Yes (macOS, Windows) | No |
| Forge planner | Yes | No |
| Built-in web search | Yes | No |
AlysisCode is the better choice when you want to use non-Anthropic models, run the agent in a desktop app, or need Forge-style task planning with per-step verification. Claude Code is worth considering for developers who already have an Anthropic API key and want the first-party agent experience with no additional installation.
Install the CLI with the one-line installer for macOS, Linux, and WSL, or via uv or pipx if you have Python 3.11+.
```bash
# macOS, Linux and WSL
curl -LsSf https://raw.githubusercontent.com/AlysisAi/AlysisCode/main/scripts/install.sh | sh
# Windows (PowerShell)
irm https://raw.githubusercontent.com/AlysisAi/AlysisCode/main/scripts/install.ps1 | iex
# Python package managers (Python 3.11+)
uv tool install alysis-code
pipx install alysis-code
```No. Connect your own API key from any supported provider (OpenAI, Anthropic, Gemini, DeepSeek, and others) or point it at a local model with no account needed. An Alysis account is optional and gives you 50 free credits every 30 days with no credit card required.
Yes. Shell commands run in an OS-level sandbox: Seatbelt on macOS, Bubblewrap or Docker on Linux and WSL, and a native sandbox on Windows x64. This is enforced outside the model layer, so the agent cannot instruct its way around it. Run alysis sandbox doctor --smoke to confirm the sandbox is active on your machine.
Forge takes a high-level goal and breaks it into a reviewed plan of dependent tasks, each verified before the next starts. Use it for changes that span multiple files or require a sequence of decisions. The README recommends starting with small goals because each planning and verification step consumes additional tokens.
The CLI works on Linux and WSL with full sandbox support (Bubblewrap or Docker). The desktop app is not available for Linux yet; only macOS (.dmg) and Windows (.exe) builds ship. There is no announced timeline for a Linux desktop build in the README.
Both are terminal-based AI coding agents that support Anthropic's Claude models and MCP servers. Claude Code is Anthropic's own product and requires an Anthropic API key or Claude subscription. AlysisCode is Apache-2.0 licensed, independently built, and supports any model provider (OpenAI, Gemini, DeepSeek, local models, and others). It adds a desktop app, Forge planner, built-in web search, computer use, and an OS-level sandbox as first-class features.
#1 in the Claude Code guide
Broad provider and model choice in a terminal-first client, MIT-licensed with AGENTS.md instructions
#2 in the Claude Code guide
Direct Claude configuration inheritance with Anthropic subscription support
#3 in the Claude Code guide
Documented Claude transcript import with IDE and CLI surfaces
#4 in the Claude Code guide
ACP subscription bridge that reuses an existing Claude Code or ChatGPT subscription
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