Sibyl Memory Plugin. Works with the runtimes you already use.
Most AI agents forget everything between sessions. The Sibyl Memory Plugin gives your agent a memory that lasts: the people, decisions, and context that carry from one conversation to the next.
Memory that survives the session.
Plug it into your agent and it starts remembering. People, projects, decisions, and the small details that make an assistant feel like it actually knows you.
It remembers
Conversations, choices, and context carry across sessions. Your agent picks up where it left off instead of starting from scratch every time.
Works with your tools
Drop-in for Hermes Agent and any MCP-compatible setup: Claude Code, Cursor, Codex, and more. Same memory, whichever runtime you use.
Stays private
Your memory lives on your machine, not our servers. We never read it. You can delete it any time.
Three steps. A couple of minutes.
No config files to wrangle, no keys to paste. Add it, sign in once, and your agent has memory from the next message on.
Add the plugin
Install it alongside your agent and point your config at Sibyl memory. One line.
Sign in once
A browser page opens. Connect a wallet or use your email to link the plugin to your account. That is the whole setup.
It just remembers
From here on, every memory read and write happens automatically and locally. Nothing else to manage.
Your memory never leaves your machine.
The plugin is local-first by design. Every memory operation runs against a database on your own device. Our servers only handle sign-in and your account, never the contents of your memory.
Free to start. Upgrade when you outgrow it.
The free tier runs locally with a generous memory limit. When you need more, pick the door that fits how you work.
Enterprise self-host is available for teams that need to run everything on their own infrastructure. Prices are set as each paid feature is finalized.
In private testing. Public launch follows.
The plugin is being shaken out with a small group of Hermes Agent operators ahead of public launch. Install commands, public package endpoints, and the activation flow are deliberately not exposed on this page yet. If you run a Hermes Agent in production and want first-wave access when the public path opens, reply with your use case and we will reach out directly.