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<img width="1920" height="1080" alt="osaurus-techcrunch-1" src="https://github.com/user-attachments/assets/d7905005-71fe-41ba-b69f-e8968af29b5c" />
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<h1 align="center">Osaurus</h1>
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<strong>Own your AI.</strong><br>
Agents, memory, tools, and identity that live on your Mac. Built purely in Swift. Fully offline. Open source.
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<a href="https://trendshift.io/repositories/22454?utm_source=repository-badge&utm_medium=badge&utm_campaign=badge-repository-22454" target="_blank" rel="noopener noreferrer"><img src="https://trendshift.io/api/badge/repositories/22454" alt="osaurus-ai%2Fosaurus | Trendshift" width="250" height="55"/></a>
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<a href="https://github.com/osaurus-ai/osaurus/releases/latest"><img src="https://img.shields.io/github/v/release/osaurus-ai/osaurus?sort=semver" alt="Release"></a>
<a href="https://github.com/osaurus-ai/osaurus/releases"><img src="https://img.shields.io/github/downloads/osaurus-ai/osaurus/total" alt="Downloads"></a>
<a href="https://github.com/osaurus-ai/osaurus/blob/main/LICENSE"><img src="https://img.shields.io/github/license/osaurus-ai/osaurus" alt="License"></a>
<a href="https://github.com/osaurus-ai/osaurus/stargazers"><img src="https://img.shields.io/github/stars/osaurus-ai/osaurus?style=social" alt="Stars"></a>
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<img src="https://img.shields.io/badge/Platform-macOS%20(Apple%20Silicon)-black?logo=apple" alt="Platform">
<img src="https://img.shields.io/badge/OpenAI%20API-compatible-0A7CFF" alt="OpenAI API">
<img src="https://img.shields.io/badge/Anthropic%20API-compatible-0A7CFF" alt="Anthropic API">
<img src="https://img.shields.io/badge/Ollama%20API-compatible-0A7CFF" alt="Ollama API">
<img src="https://img.shields.io/badge/MCP-server-0A7CFF" alt="MCP Server">
<img src="https://img.shields.io/badge/Apple%20Foundation%20Models-supported-0A7CFF" alt="Foundation Models">
<a href="https://huggingface.co/OsaurusAI"><img src="https://img.shields.io/badge/%F0%9F%A4%97%20Hugging%20Face-OsaurusAI-FFD21E" alt="Hugging Face"></a>
<img src="https://img.shields.io/badge/PRs-welcome-brightgreen" alt="PRs Welcome">
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<a href="https://github.com/osaurus-ai/osaurus/releases/latest/download/Osaurus.dmg">Download for Mac</a> ·
<a href="https://docs.osaurus.ai">Docs</a> ·
<a href="https://huggingface.co/OsaurusAI">Models</a> ·
<a href="https://discord.gg/osaurus">Discord</a> ·
<a href="https://x.com/OsaurusAI">Twitter</a> ·
<a href="https://github.com/osaurus-ai/osaurus-tools">Plugin Registry</a>
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Inference is all you need. Everything else can be owned by you.
Models are getting cheaper and more interchangeable by the day. What's irreplaceable is the layer around them -- your context, your memory, your tools, your identity. Others keep that layer on their servers. Osaurus keeps it on your machine.
Osaurus is the AI harness for macOS. It sits between you and any model -- local or cloud -- and provides the continuity that makes AI personal: agents that remember, execute autonomously, run real code, and stay reachable from anywhere. The models are interchangeable. The harness is what compounds.
Works fully offline with local models. Connect to any cloud provider when you want more power. Nothing leaves your Mac unless you choose.
Native Swift on Apple Silicon. No Electron. No compromises. MIT licensed.
Install
brew install --cask osaurus
Or download the latest .dmg from Releases. After installing, launch from Spotlight (⌘ Space → "Osaurus") or the CLI:
osaurus ui # Open the chat UI
osaurus serve # Start the server
osaurus status # Check status
Requires macOS 15.5+ and Apple Silicon.
Agents
Agents are the core of Osaurus. Each one gets its own prompts, memory, and visual theme -- a research assistant, a coding
