What it is: Atlaso (atlaso.ai) is a hosted memory layer that connects over MCP so every AI tool you use draws from one shared memory. Connect it once and, per the vendor, Claude Code, Cursor, Codex, Claude Desktop, OpenCode, and Antigravity all recall the same context — your projects, your decisions, and the way you like to work. Anything else that speaks MCP can connect too. It launched on Product Hunt around 2026-08-06 under the line "one memory for every AI you use."
Who it's for: Solo builders and founders who run more than one coding agent. If you drive Claude Code in the terminal, Cursor in the editor, and hand reviews to Codex, each one starts every session amnesiac — re-learning your stack, your naming conventions, and the decision you already made twice. Atlaso's wedge is continuity across those tools: the memory follows you, not the app. That's a different job from Mem0 vs Zep vs Letta, which are memory layers you embed into a product for your users.
Should you care: If you've felt the tax of repeating yourself to three agents, yes — this is the least-friction attempt yet at fixing it, because it rides MCP instead of asking every tool to adopt a proprietary SDK. If you run a single agent, or you keep your context in an AGENTS.md / CLAUDE.md file you commit to the repo, the payoff is smaller — that file already travels with the code.
What it actually does#
Atlaso captures decisions, watch-outs, and open questions as you work, rather than dumping raw transcripts. That framing matters: useful agent memory is the consolidation step — deciding what's worth keeping and what to drop — not a firehose of everything you typed. The store is one place you can see, search, and manage, which is the right default; a memory you can't inspect or edit is a liability the first time it remembers something wrong.
The distinction worth holding onto: this is a memory store, not the Claude memory tool. The Claude memory tool is a protocol your agent uses to read and write files you host; Atlaso is a hosted service that does the hosting and the write-consolidation for you, exposed to every agent through one MCP endpoint. If you'd rather own the backend, Claude's memory tool plus your own storage is the build-it-yourself path.
How to start#
- Sign up at atlaso.ai and get your connection details.
- Add Atlaso as a remote MCP server in your agent — the same flow you'd use to authenticate any remote MCP server. It's supported in Claude Code, Cursor, Codex, Claude Desktop, OpenCode, and Antigravity.
- Work normally. It captures decisions and open questions as you go; when you switch tools, the new one recalls what the last one learned.
Pricing#
- Free to start. Atlaso advertises a free entry point and describes itself as "backed by original memory research."
- Paid tiers: not detailed publicly at the time of writing. Treat anything beyond the free tier as "check the site," and — as with any hosted memory service — ask about export before you accumulate context you'd hate to lose.
The honest catch#
Three things to weigh before you route your working memory through it.
You're renting your context. This is a brand-new hosted service with no track record. Every decision and watch-out your agents accumulate lives in one vendor's store, reachable through one vendor's API. The convenience is the lock-in — the longer you run, the more your memory-of-record lives somewhere you don't control. Confirm there's an export path before you commit anything important.
Secret-scrubbing is a claim, not a guarantee you can see. A tool that watches your coding sessions to capture "decisions and watch-outs" is, by construction, reading context that can include tokens, keys, and internal hostnames. Atlaso says secrets are scrubbed before storage — which is exactly the right promise and exactly the one you can't independently verify from the outside. The safe posture is the one you'd take with any agent that holds credentials: assume the model should never see the key, and test on a non-sensitive project before you trust it with a real one.
"Backed by memory research" isn't a benchmark. Recall quality is the whole game for a memory layer, and there's no public LOCOMO-style number for Atlaso yet. Whether it surfaces the right decision at the right moment — versus burying it or recalling a stale one — is something only your own use will tell you.
Bottom line: The most promising framing of cross-tool memory to date — ride MCP, follow the user, keep the store inspectable — aimed squarely at the builder juggling three coding agents at once. Try it on a throwaway project, verify the scrubbing against a test secret, and keep an export plan in your back pocket. If it holds up, never re-briefing your third agent is a real daily win.
