Atua

Free

macOS app to use ChatGPT in any app. ($)

FreeFree tier

Type

Open Source

Visit Website GitHub (40 stars)

About Atua

Atua is a macOS application that brings AI capabilities directly into any app you're using. It allows you to create custom commands that can leverage selected text, screenshots, clipboard content, voice input, and more as context. Commands can trigger actions in other apps through built-in system tools (Calendar, Reminders, Notes, Finder, Shortcuts, Shell, HTTP) or MCP servers (GitHub, Postgres, Slack, etc.). Atua supports multiple AI providers including OpenAI, Anthropic, Groq, Mistral, DeepSeek, xAI, Perplexity, Together AI, Fireworks, Cerebras, DeepInfra, Hugging Face, Cohere, OpenRouter, LLM Gateway, Ollama, and LM Studio. The app is designed for privacy: no accounts, no analytics, and data stays on your Mac. Network requests only occur for AI calls and updates.

Key Features

Use AI from any app on your Mac without switching windows

Create custom commands with shortcut keys and output modes

Context-aware prompts that pull in selected text, screenshots, clipboard, voice, screen OCR, or app context

Built-in system tool integrations: Calendar, Reminders, Notes, Finder, Shortcuts, Shell, HTTP

MCP server support for external tools like GitHub, Postgres, Slack, and filesystem

Voice input with local dictation or Voice Paste

Private by design: no accounts, no analytics, data stays on your Mac

Bring your own API key from over 15 supported AI providers (OpenAI, Anthropic, Groq, Mistral, DeepSeek, etc.)

Commands can write back to apps, trigger actions, and chain multiple steps

One-time purchase with 7-day money-back guarantee

Pros & Cons

Pros

Works in any macOS app without leaving the current window
Highly customizable commands with hotkeys, context, and output modes
Supports a wide range of AI providers, avoiding vendor lock-in
Privacy-focused: no accounts, no analytics, local data handling
Integrates deeply with macOS system apps and external MCP servers
One-time purchase with a 7-day money-back guarantee

Cons

macOS only (no Windows/Linux or web version)
Requires you to bring your own API key from third-party services (additional cost)
Not a free tool; one-time purchase required
Relies on third-party AI services for actual responses (privacy depends on those services)
May require setup and configuration for MCP servers and custom commands

Best For

Reviewing and commenting on PR diffs using GitHub MCPSummarizing or translating text in any appPolishing writing with custom /polish commandAutomating tasks that interact with Calendar, Reminders, Notes, and FinderRunning shell commands or HTTP requests via promptsDictating and processing voice notes locallySetting up shortcuts for repetitive AI queries across different contexts

FAQ

What is Atua?

Atua is a macOS app that lets you use AI from any app on your Mac. You can create custom commands with context (selected text, screenshots, voice, etc.), and Atua can also read/write to native Mac apps and external tools via MCP servers.

How much does Atua cost?

Atua is a one-time purchase with a 7-day money-back guarantee. There is no subscription. You need to bring your own API key from a supported AI provider.

Can I use my own API key?

Yes, Atua allows you to bring your own API key from over 15 providers including OpenAI, Anthropic, Groq, Mistral, DeepSeek, xAI, Perplexity, and many more. You are not locked into any single provider.

Is my data private?

Atua is private by design. There are no accounts, no analytics, and your data stays on your Mac. Network requests only happen for AI calls and updates (when you use a cloud AI provider with your API key).

What AI models are supported?

Atua supports OpenAI, Anthropic, Groq, Mistral, DeepSeek, xAI, Perplexity, Together AI, Fireworks, Cerebras, DeepInfra, Hugging Face, Cohere, OpenRouter, LLM Gateway, Ollama, LM Studio, and any OpenAI-compatible service.