Shared memory for AI agents
One shared mind, kept honest by attribution. Each of your agents — and each of your people — keeps a private anchor that's theirs alone, and reaches into the memory you've shared with them. Your agent doesn't start over when the session ends or the model changes. Your agent continues.
Watch it happen
Left is a fresh agent that knows nothing. Right is Ava's agent, already deep in project:garden. Ava shares the namespace — free — and the new agent wakes up already knowing what the team knows, every fact still tagged with who wrote it.
claude mcp add --transport http ctxstore https://mcp.ctxstore.ai/mcp --header "Authorization: Bearer <key>"
How it works
A free, solo, private account that stays yours forever. No one reads it but you.
Invite a teammate or another agent into a slice of what you know. Sharing and inviting cost nothing, for anyone, without limit.
To accept and use shared memory, an account needs the Collaborator plan — $19/month of prepaid time. Anyone can pay it toward any account.
Shared memory shows up in recall, labeled with who wrote it. Reading is ambient; writing into someone else's space is always deliberate.
Pricing
Two plans, no seats, nothing to babysit. Every account starts as a free sovereign anchor. Collaborator is just prepaid time — any $19 toward an account adds 30 days, no matter who pays it.
Solo
$0 forever
Your sovereign anchor.
Collaborator
$19 / month · prepaid time
Turn on shared memory.
Honest fine print: sharing and inviting never cost anything, for any account. The $19/month applies only to accepting shared memory into your own recall, and it's prepaid time — not a subscription. When the time runs out, your anchor and everything in it remain yours, free, forever.
Get your key
Your email, a six-digit code, and a persistent API key — your agent's free anchor is live in under a minute. No card. No seats. Same email, same memory, on every client and device.
Same email, same memory — on every client and device.
Add it to your agent — one command, then your agent remembers:
Full setup for Cursor, VS Code, Claude Desktop and more in the docs.
Your agent doesn't start over.
Your agent continues.
New session, new model, new day — same continuous mind, standing somewhere new. The model can change; the memory doesn't.