What is MemoryBase?
MemoryBase keeps the context from your AI chats in one place. A Chrome extension syncs your ChatGPT and Claude conversations in the background, sorts them into topics and projects, and lets you hand that context to another assistant, so a plan worked out in ChatGPT can carry on in Claude or Claude Code without re-explaining it. "Context packs" let you choose which conversations a given assistant gets to see, and everything can be browsed, pruned and exported.
The homepage lists ChatGPT, Claude and Gemini as chat sources, Claude Code and Codex for coding, and OpenClaw, Hermes and an MCP and command-line route for agents, with Perplexity and Grok coming. Its own blog is narrower: automatic capture covers ChatGPT and Claude, and other tools need context packs added by hand.
It is early. The Chrome Web Store listing shows version 0.1.34 and 401 users. The service is run by Unchained Technology Inc., a Delaware company that shares owners with TX Labs, a British Virgin Islands firm whose Bless brand is listed as the extension's publisher.
How much does MemoryBase cost?
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | ChatGPT and Claude, 6 months of history, background sync |
| Pro | $9/month billed annually ($108 a year) | Unlimited history and context packs, agent integrations, priority support |
Free $0: ChatGPT and Claude sync, 6 months of chat history, timeline and project views. Pro $9/month billed annually ($108 a year): unlimited history and context packs, agent integrations, priority support; no monthly-billing price is shown. New accounts get a 7-day Pro trial without a card.
Is MemoryBase worth it?
You spend an evening working through a job move with ChatGPT, then open Claude the next day and have to explain your whole situation again. Each assistant's memory stays inside its own app.
MemoryBase sits above them. Its Chrome extension copies your ChatGPT and Claude conversations as they happen, groups them by topic, and lets you pass a chosen bundle to another assistant or to Claude Code. The free plan keeps 6 months of history; Pro, at $9 a month on annual billing, keeps everything.
What you hand over is the issue. Your chat history is often the most personal record you have: health worries, money, arguments with your partner. The privacy notice says MemoryBase stores it encrypted (TLS 1.2 or better in transit, AES-256 at rest), deletes it from active systems within 30 days of closing your account and from backups within 90, and promises 30 days' notice and an export before any shutdown or sale. The homepage says names, emails and secrets are stripped on your device before sync. Those are better commitments than many small extensions make.
The catch: the gaps are in the places that matter most. Neither the privacy notice nor the terms mention AI training at all, and the terms license your content for "providing and improving the Service". The homepage headline says "Encrypted end-to-end" but the text under it describes local redaction, not encryption the company cannot read. The Chrome listing declares that the extension collects location, web history and website content. It has 401 users, it is published under the Bless brand of a sister company in the British Virgin Islands, and the terms cap its liability to you at $100 or what you paid in the past year.
Our take: copying a fact sheet about yourself into Claude by hand takes five minutes and leaks nothing; MemoryBase is worth it only if you switch assistants daily and are comfortable with a young company holding your entire chat archive.
Where it earns its place
A solo founder who plans in ChatGPT and builds in Claude Code
Stop re-explaining the product every time a coding session starts
Bundle the planning chats into a context pack and send it to Claude Code. Agent integrations are a Pro feature at $108 a year; leave customer data out of the planning chats, since training use is not addressed.
A writer with two years of ChatGPT history and a new Claude subscription
Move ongoing projects across without losing the thread
Install the extension, let it sync, and export project groups into Claude. The free plan only keeps 6 months, so older projects need the 7-day Pro trial or a paid year.
A privacy-minded professional who uses AI for personal matters
Decide whether a shared memory is worth the exposure
Read the Chrome listing's data disclosure and the privacy notice before syncing; deletion takes up to 90 days to clear backups. Pruning sensitive chats before export keeps them out of other assistants.
Before you commit
- Setup
- Install the Chrome extension and sign in; it syncs ChatGPT and Claude history in the background. No other browsers are listed.
- Integrations
- ChatGPT and Claude capture automatically; Gemini, Claude Code, Codex, OpenClaw, Hermes and an MCP and CLI route are listed, with Slack and Google Docs on the roadmap.
- Data and privacy
- Run by Unchained Technology Inc. under Delaware law; TLS 1.2+ and AES-256 at rest; content purged from active systems within 30 days of account deletion and backups within 90. The privacy notice and terms never mention AI model training. Only Amplitude is named as a subprocessor, and it receives no conversation content. Which AI tools train on your data?
- Cost at scale
- There is no team plan; each person needs a Pro subscription at $108 a year for unlimited history.
- Limits
- Automatic capture covers ChatGPT and Claude only; the extension is at version 0.1.34; the service is not meant for users under 16.
What’s good
- Carries context between ChatGPT, Claude and Claude Code
- Context packs let you choose what each assistant sees
- Published deletion timeline: 30 days active, 90 days backups
- Free plan keeps 6 months of history; Pro is $108 a year
What’s not
- Privacy notice and terms say nothing about AI training
- "End-to-end" claim describes local redaction, not encryption
- Chrome listing declares collection of web history and location
- Version 0.1.34 with 401 users; automatic capture only for ChatGPT and Claude
- Liability capped at $100 or a year's fees
Best for
People who move between ChatGPT, Claude and Claude Code every day and accept a small company keeping their full chat history.
MemoryBase alternatives
MemoryBase: common questions
- Is MemoryBase worth it?
- MemoryBase solves a real annoyance, carrying context from ChatGPT to Claude, but it asks for a copy of every chat you have had while still at version 0.1 and silent on whether that content trains anything. We rate it 3.2 out of 5.
- How much does MemoryBase cost?
- Free $0: ChatGPT and Claude sync, 6 months of chat history, timeline and project views. Pro $9/month billed annually ($108 a year): unlimited history and context packs, agent integrations, priority support; no monthly-billing price is shown. New accounts get a 7-day Pro trial without a card.
- What are the downsides of MemoryBase?
- Privacy notice and terms say nothing about AI training; "End-to-end" claim describes local redaction, not encryption; chrome listing declares collection of web history and location; version 0.1.34 with 401 users; automatic capture only for ChatGPT and Claude; liability capped at $100 or a year's fees.
- Who is MemoryBase best for?
- People who move between ChatGPT, Claude and Claude Code every day and accept a small company keeping their full chat history.
- How much does MemoryBase cost for a team or in production?
- There is no team plan; each person needs a Pro subscription at $108 a year for unlimited history.
- Is MemoryBase safe for company data?
- Run by Unchained Technology Inc. under Delaware law; TLS 1.2+ and AES-256 at rest; content purged from active systems within 30 days of account deletion and backups within 90. The privacy notice and terms never mention AI model training. Only Amplitude is named as a subprocessor, and it receives no conversation content.
- What are the best MemoryBase alternatives?
- The closest alternatives we have reviewed are Supermemory, Claude and ChatGPT.
Answers checked Nov 11, 2026.