JustOnce gives your AI agent three things: one memory across the assistants you connect, a document store for the files it saves and can tell you about later, and spaces you share with anyone.
Works with Claude, ChatGPT (Business, Enterprise and Edu), Cursor, VS Code, Gemini CLI, Codex and Claude Code. On ChatGPT Pro your assistant can read your memory but not save to it.
Your memory lives in JustOnce, not inside one assistant. Switch assistants or use several: your memory stays in one place, so what you save in one is already there in the next.
Works with Claude, ChatGPT (Business, Enterprise and Edu), Cursor, VS Code, Gemini CLI, Codex and Claude Code. On ChatGPT Pro your assistant can read your memory but not save to it. One endpoint, no API key, about a minute to set up.
Every memory keeps your original wording alongside the distilled version, with a confidence tier attached — so your assistant can tell a fact you verified from something it inferred.
Semantic search understands meaning, not keywords — “what’s my landlord’s number?” just works. People, places and the links between them are extracted too, so you can follow the graph from a person to everything connected to them.
Corrections supersede rather than overwrite, so you can ask what was true last March and get the answer that was right then. History covers your own memories. Forget means gone — there’s no restore.
Everything you add is sorted into one of 18 categories spanning life and work, with the people, dates and amounts inside it extracted and any renewal or due date captured alongside.
PDFs, photos and notes your agent saves and can tell you about later. Your AI reads the file, saves what it says, and keeps the original with it.
Tell a connected assistant. Type a note, or upload a text or CSV file, in the web app. Store PDFs, Word and Excel files and JPEG, PNG, GIF or WebP images through your assistant, which reads them for you. Or, on a paid plan, forward email to your private address — it’s read with your own Anthropic, OpenAI or Google key.
JustOnce runs no OCR. Your assistant reads the file and saves what it says; a file saved without that reading is kept under its title only. Your AI does the reading; JustOnce does the remembering.
PDF, JPEG, PNG, GIF, WebP, TXT, CSV, DOCX and XLSX, up to 25 MB. The original goes in through a one-time upload link that lasts 15 minutes, straight into encrypted storage. Open the original any time at app.justonce.ai.
Encrypted at rest with AES-256-GCM — memories under a key for their space, documents under a key for your account. JustOnce holds the keys, so it isn’t end-to-end.
The memory engine runs on a private network with no public address. JustOnce never uses your memories to train AI models, and our AI provider, Anthropic, doesn’t train on them either.
Security in detailEverything you save is filed into the right category. No folders, no tags.
Free: 20 memories and 10 document pages a month, no card. Connecting takes a minute at a computer.
Works with Claude, ChatGPT (Business, Enterprise, Edu), Cursor, VS Code, Gemini CLI and Codex
