Ghast AI Docs

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What Is Ghast AI ​

Ghast AI is a desktop AI partner for macOS, powered by on-chain compute. It is a single client that brings together:

  • a streaming chat surface,
  • the ability to operate your Mac and your real Chrome,
  • a persistent vector memory,
  • a skills system and MCP / ACP integrations,
  • bridges into Telegram, Discord, Slack, Feishu, and WeChat,
  • and a wallet-anchored relationship to the 0G Compute and 0G Storage networks.

The product is opinionated about three things: compute should run through a verifiable on-chain layer, data should stay local by default, and the same agent should follow you across the apps you already use.

Who it is for ​

Ghast AI is built for people who want a long-running AI partner — not just a chat window. Concretely:

  • You want one assistant that can answer in Telegram or Discord just as easily as in the desktop app.
  • You want the assistant to actually use your tools — read a file, drive a Mail compose window, take a screenshot of a Chrome tab — instead of producing text about doing those things.
  • You care about where your data lives. You want memory and conversations stored locally by default and any cloud copy to be encrypted with a key you control.
  • You are comfortable holding a wallet. Ghast pays for compute out of your wallet, and your wallet also derives the key for end-to-end-encrypted cloud sync.

If none of those describe you, a hosted chat product is probably a better fit. If most of them do, the rest of this manual will be useful.

What you can do with it ​

The current default surfaces are:

  • Chat in the desktop main window, with file attachments, voice input, tool toggles, and skill selection.
  • Recall memories that the agent has accumulated about your work, preferences, and open loops across sessions.
  • Run skills — 30 are bundled, covering productivity, browser automation, market data, social search, screenshots, voice, and more.
  • Operate macOS through Computer Use, with a per-app approval gate before any modifying action.
  • Operate Chrome through the Ghast Browser Relay extension over the Chrome DevTools Protocol.
  • Bridge a chat platform so the same agent can respond in Telegram / Discord / Slack / Feishu / WeChat.
  • Pick a model from the 0G Compute network — either through the Router (paste a Compute Console API key) or by funding a specific on-chain TEE provider from your wallet (Advanced).
  • Sync encrypted backups of your local data to 0G Storage, opt-in per category.

Each of these has its own section in this manual.

What it is not ​

To set expectations clearly:

  • It is not a browser extension with a small "settings page." The desktop app is the primary product surface; the Chrome extension is a relay that lets the agent reach into your browser.
  • It is not a cloud chat service. Conversations and memories live in a local SQLite database. Cloud sync is opt-in, per-category, and encrypted client-side.
  • It is not a custody product. Ghast does not hold your wallet keys — they are stored encrypted in your local profile vault, and signing happens locally.
  • It is not an autonomous machine takeover tool. Computer Use requires explicit macOS Accessibility permission and per-app approval before any modifying action.
  1. Install Ghast AI Desktop (Install).
  2. Sign in with email and complete onboarding (Sign In & Activation).
  3. Create or import a wallet (Wallet & Key Custody).
  4. Sign up at https://pc.0g.ai/, top up the 0G Compute Console, generate an API key, and paste it into Ghast → Settings → Providers → Router (Inference Modes).
  5. Only as needed — fund an Advanced provider, grant Computer Use, install the Chrome extension, connect a messaging bridge.