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What people use it for

JustOnce is the memory and document store for your AI agent: one memory across the assistants you connect, your documents kept with it, and spaces you share with anyone. People start with their own memory, then bring in the people around them.

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.

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Your own memory, across your assistants.

Tell it once. 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, Edu), Cursor, VS Code, Gemini CLI and Codex.

Decisions, saved once

The decisions and preferences you re-explain every week, saved once and recalled in every later chat, dated.

6 prompts you can copy

Job search

Every application, resume version, salary quoted and recruiter conversation — recalled by your assistant before the call.

6 prompts you can copy

A document store for your agent.

PDFs, photos and notes your agent saves and can tell you about later. Your AI does the reading.

Documents & email

No per-tool file limit. Save documents through your assistant, or forward them to a private address that runs on your own model key — and each assistant you connect, such as Claude or Cursor, recalls them.

5 prompts you can copy

Share with anyone.

On Plus or Pro, invite anyone by email. Each of them asks their own Claude, or opens the space on the web.

Caring for a parent

Talk to your parent first. Then the letters, policies and dates go in one space each sibling can ask from their own Claude, or open on the web. Records, not health advice.

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Household paperwork

One person photographs the policy. Everyone in the space, and their own Claude, can answer from it. Shared spaces on Plus or Pro; members join free, no OCR.

4 prompts you can copy

A VA, bookkeeper or colleague

Give them a space with exactly the slice of context they need. Their own Claude answers from it, credited to you.

Sharing stories

School and sport

Snap the term planner or the game schedule once, share it to the family space, and either parent asks their own Claude when and where.

Sharing stories
How sharing works: invites, roles and approvals

Teams, too

A space per team or per client, recalled by each member’s own assistant, with the exact scope stated honestly.

Teams & agencies

Shared spaces for teams and per-client agency context, recalled by each member’s own assistant — with the exact scope stated honestly.

6 prompts you can copy

Give your agent a memory

Free: 20 memories and 10 document pages a month, no card. Connecting takes a minute at a computer.

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Works with Claude, ChatGPT (Business, Enterprise, Edu), Cursor, VS Code, Gemini CLI and Codex