Now available for macOS

Meet Hachi Answers only to you

A personal AI that runs on your machine. Your memory, your credentials, your conversations — they never leave. The model is rented. Everything else is owned.

Download for Mac Join community →

Capabilities

All the tools to make Hachi yours

Choose any AI model. Keep everything private. Let Hachi learn who you are.

🧠

Persistent Memory

A knowledge graph with 7 node types, emotional charge, and fidelity decay. Hachi remembers your context across weeks — without ever sending it to a server.

SOUL.md + NOW.md

🔐

Process-Isolated Security

Three separate processes. The AI never sees raw credentials. AES-256-GCM encryption at rest. 66 secret detection patterns. Fail-closed by design.

CES boundary

⚡

Self-Expanding Skills

Hachi writes TypeScript, sandboxes it, and persists new tools at runtime. It reflects on its failures and rewrites its own behavior. 71 skills and counting.

30-second authoring

Memory

Your context carries over

You don't repeat yourself. Hachi remembers your preferences, projects, and personality — and it all stays on your machine.

🧠 Things Hachi keeps in mind

Always Local

📋 Your World

Current projects and deadlines
Preferred tools and workflows
Communication style and tone
Technical stack preferences

🔮 Anticipatory Context

Predicts what you'll need before you ask
Surfaces relevant memories from weeks ago
Reaches out proactively via heartbeat
Builds an evolving narrative of you

Security

Your AI can see your screen.
It should never see your passwords.

Tools run in a WASM sandbox with zero capabilities by default. The CredentialInjector intercepts at the host boundary. The tool gets the response. Never the key.

66 patterns scanning every output for secrets
14 guard tests enforced in CI on every commit
Fail-closed — if sandbox fails, tool doesn't run

$ hachi credential store github-token

→ Encrypted (AES-256-GCM)

→ Digest: a3f8…c91d

$ hachi tool run api-fetch

→ WASM sandbox: caps = {}

→ CredentialInjector → header injected

→ 200 OK (tool never saw the key)

$ grep -r "ghp_" tool-output/

→ 0 matches. As designed.

Computer Use

Siri can set a timer.
Hachi can fill out your tax return.

Full native macOS control — screen capture, keyboard, mouse. It plans multi-step workflows and asks permission before every action.

Dual perception — AX tree + screenshot in parallel
CGEvent injection — native keyboard and mouse
Consent-first — every action, every time, no exceptions

▸ Capturing AX tree + screenshot…

▸ 142 UI elements indexed

▸ Requesting confirmation…

▸ Approved. 3 actions.

▸ 1/3: click "Safari" in Dock

▸ 2/3: type URL in address bar

▸ 3/3: fill "name" field

▸ Complete. UI settled.

Multi-Channel

One brain. Every surface.

Same memory, same skills, same personality — wherever you are.

🖥macOS

📱iOS

⌨️Terminal

✈️Telegram

💬Slack

📞Voice

💚WhatsApp

🌐Web

Multi-Provider

Swap the brain. Keep everything else.

Use any LLM provider — or run fully local with Ollama. Your data stays regardless.

Anthropic Claude

OpenAI

Google Gemini

Ollama (local)