Osaurus Is the Local-First Agent Mac Was Missing
Osaurus shipped v0.18.20 on May 15 with TechCrunch coverage same day. The product is a native Swift macOS harness for AI agents, MIT-licensed, 5.3K stars on GitHub, 114K downloads. It runs locally with persistent memory, sandboxed code execution, and cryptographic identity, but lets you flip between local models (Qwen3.6, DeepSeek V4, Gemma 4, MiniMax M2.5, Llama, GPT-OSS, Apple's on-device models) and cloud (OpenAI, Anthropic, Gemini, xAI, Venice, OpenRouter, Liquid AI) inside the same agent loop.
The interesting piece is the MCP plumbing. Osaurus is a full MCP server that exposes its 20+ native plugins (Mail, Calendar, Vision, Browser, Git, Filesystem) to any compatible client, and it is also an MCP client that aggregates tools from ~25 remote providers including Linear, Notion, GitHub, and Vercel. So it sits in both directions at once.
Built by Terence Pae (ex-Tesla, Netflix) and Sam Yoo through the Alliance accelerator in NYC. Hardware floor is 64GB RAM, with 128GB recommended for larger local models. Free download via DMG or brew install osaurus. The bet here is the same as PAI from May 14: filesystem-transparent, local-first, no opaque vendor between you and your context. Different shape: PAI is built on Claude Code, Osaurus is its own Swift runtime aiming to be a peer to Claude Code rather than a wrapper around it.
If you want to run agents on your Mac without your contacts, calendars, and source code leaving the box, this is the cleanest entry point right now. osaurus.ai.
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The interesting piece is the MCP plumbing. Osaurus is a full MCP server that exposes its 20+ native plugins (Mail, Calendar, Vision, Browser, Git, Filesystem) to any compatible client, and it is also an MCP client that aggregates tools from ~25 remote providers including Linear, Notion, GitHub, and Vercel. So it sits in both directions at once.
Built by Terence Pae (ex-Tesla, Netflix) and Sam Yoo through the Alliance accelerator in NYC. Hardware floor is 64GB RAM, with 128GB recommended for larger local models. Free download via DMG or brew install osaurus. The bet here is the same as PAI from May 14: filesystem-transparent, local-first, no opaque vendor between you and your context. Different shape: PAI is built on Claude Code, Osaurus is its own Swift runtime aiming to be a peer to Claude Code rather than a wrapper around it.
If you want to run agents on your Mac without your contacts, calendars, and source code leaving the box, this is the cleanest entry point right now. osaurus.ai.
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