Parallax
Connect your API key
Parallax runs on Claude. Your key stays on this device and is only ever sent directly to Anthropic's API over a secure connection.
Anthropic API Key
Stored locally. Never shared with anyone. Update anytime by clearing your browser data.
Please enter a valid API key.
Parallax
Before we start
Parallax is in alpha. A few things worth knowing.
What Parallax collects
To understand whether Mind Box is working, Parallax logs anonymous behavioral signals: turn count per conversation, session length, whether Mind Fragments are active, and how often fragments are created or edited. We do not read your fragments, messages, or conversations. No content ever leaves your device.

What Mind Box is
Mind Box is a user-authored cognitive context system. The fragments you write are loaded into every conversation as context for the AI. You control what's written, what's active, and what gets deleted. The AI adapts to your context — not the other way around.

Your API key
Your key is stored in your browser's local storage. It is never transmitted anywhere except directly to Anthropic's API in request headers over HTTPS. Parallax has no server. There is no account. There is no database.

Alpha context
This is early software. Expect rough edges. Your experience and feedback directly shapes what comes next.
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Parallax
Who's using Parallax?
Helps Parallax address you correctly and lets us distinguish tester data. Nothing here is shared.
Your name
One sentence about yourself (optional)
A light seed. Your Mind Fragments will carry more weight once you write them — those take precedence.
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Already thinking with you.
Use Mind Fragments in this chat
Use Mind Fragments in this chat
Mind Fragments
Memories
0% full ⓘ
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Add a new Mind Fragment — write anything about yourself in natural language
Mind Box
Mind Fragment
This is a long fragment — that's fine if it needs to be. Just make sure everything here earns its place.
This chat was opened from Mind Box. If you want to talk through what Parallax can and can't help with on a fragment topic, this is the place. ✕
← Back to Mind Box
Projects
Projects
Project ✎
Chats
Overview
Chats
New chat in this project
Overview
Context Fragment
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Add a Context Fragment for this project
Knowledge
Files & Documents
Upload PDFs, docs, or images — Parallax will use them as reference within this project.
Project
Context Fragment
This is a long Context Fragment — that's fine if the project warrants it. Make sure everything here is load-bearing.
New Project
Do you want Parallax to know you better?
Open Mind Box in the sidebar to add anything about yourself — the more you share, the better Parallax calibrates to you.