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Mantle runs fully in a web browser on desktop and mobile devices. A native app is also available for macOS. Windows, Linux, iOS, and Android native apps are planned. Until they are released, use the web app on those platforms.

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Install the macOS app

1

Open the download page

Go to mantle.chat/downloads. Mantle supports Apple Silicon and Intel Macs running macOS 12 or later.
2

Choose the correct download

Most recent Macs use Apple Silicon. Choose the Intel build only if your Mac has an Intel processor.
3

Open Mantle and sign in

Follow the macOS install prompt, then sign in with the same Mantle account.
4

Allow notifications

Allow notifications if you want mentions, replies, and direct messages in Notification Center.
The app checks for updates and lets you restart when you are ready to install one. Mantle’s macOS builds are signed and notarized by Apple.

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Use a supported local coding agent

The macOS app can use supported coding tools installed on your Mac, including Codex, Claude Code, Cursor, OpenCode, and Grok CLI. You sign in through the coding tool’s official provider flow, and that provider’s terms and usage rules continue to apply.
1

Install and sign in to the coding tool

Follow that tool’s own setup and official sign-in instructions on your Mac.
2

Open local provider settings

In the macOS app, go to Settings → Models → Local providers.
3

Choose the provider

Mantle checks whether the tool is installed and signed in. Follow the on-screen setup if it needs a path or login.
4

Enable it and choose a model

Once ready, turn the provider on. Its available models appear in Mantle’s model picker.
Local providers run on your Mac and are available only while the desktop environment can run them. They may have their own usage limits and permissions. Mantle-hosted AI uses Mantle credits; a local coding agent follows its provider’s rules instead.
Local-provider availability and model names depend on the installed tool and your account with that provider. Check the status shown in Mantle settings when a model is missing.