Programming Free

Osaurus

Open-source local AI harness for macOS agents and models

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PricingFree
Starting price$0
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentHybrid
Last verifiedJuly 30, 2026
Overview

Tool overview

Osaurus is listed under Programming AI tools.

Summary

What is Osaurus?

Osaurus is a native, open-source AI harness for Apple Silicon Macs. It runs local models offline, connects optional cloud models, maintains agent memory, executes tools and sandboxed code, and exposes compatible local APIs and MCP access.

Best fit

Best for

Mac users and developers building private local AI agents

Audience

Who is it for?

Mac usersSoftware developersAI agent buildersPrivacy-focused teamsOpen-source contributors
Recommendation

Decision note

Suitable for evaluation after confirming final commercial terms, permissions, data handling, lifecycle status, and edit-screen aliases. Keep Needs Review enabled until a human verifies the published profile.

Capabilities

Key features

Native Swift application for Apple Silicon Macs

Local models with fully offline operation

Persistent agents, memory, skills, and working folders

Sandboxed Linux execution for agent code

OpenAI, Anthropic, Ollama, HTTP, CLI, and MCP interfaces

Local voice, image generation, schedules, and watchers

Workflows

Use cases

Running private AI agents on a Mac

Building local model and tool workflows

Automating files, code, and recurring tasks

Providing local APIs to developer tools

Switching between local and cloud models

Strengths

Pros

  • Core application is free and MIT licensed
  • Local-first design keeps context on the Mac
  • Broad API and MCP compatibility
  • No account required for local use
Considerations

Cons

  • Requires Apple Silicon and macOS 15.5 or later
  • Some advanced sandbox features require macOS 26
  • Cloud providers and hosted inference can add cost
Considerations

Limitations

Local execution improves privacy but does not make autonomous actions risk-free. Users should review file, shell, browser, network, and cloud-provider permissions, enable encryption where appropriate, and test agents before granting broad access.

Cost

Pricing details

Pricing modelFree
Starting price$0
Free planYes
Free trialYes
Pricing context

Billing options

Free open sourceOptional pay-as-you-go inference credits
Pricing context

Pricing note

The core Osaurus app is free, MIT licensed, and has no subscription or usage caps for local models. Optional cloud providers may bill separately, and Osaurus Router offers prepaid pay-as-you-go inference credits.

View official pricing
Compatibility

Supported programming languages

  • English
Connectivity

Integrations

Ollama

MLX

LM Studio

OpenAI

Anthropic

Gemini

Grok

OpenRouter

Claude Desktop

Cursor

Specs

Technical details

PlatformsDesktop, API
Multilingual supportUnknown
Login requiredNo
Open sourceYes
LicenseMIT
DeploymentHybrid
CompanyOsaurus, Inc.
Launch year2026
Models / versionsLocal MLX models Apple Foundation Models Cloud providers
Editions / plansOsaurus app Osaurus Router
Data confidenceHigh
Last verifiedJuly 30, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

Osaurus is a native, open-source AI harness for Apple Silicon Macs. It runs local models offline, connects optional cloud models, maintains agent memory, executes tools and sandboxed code, and exposes compatible local APIs and MCP access.
Mac users and developers building private local AI agents
The listed pricing model for Osaurus is Free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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