Mnemos
Watch the commercial1:23The memory that plugs right into your Hermes.
Tell it once, and it knows in every room.
Mnemosfor
Hermes
Stay tuned for this special offer
Tired of a helper
that meets you
for the first time…
every time?
“It’s Theo. …Theo. I live here.”
“Nice to meet you.”The helper
DramatizationThere has got to be a better way!
Introducing
Mnemos!
Results not typicalJust tell it once…
-
What she saidMy recital’s Thursday.
Dad promised the front row.Tell it in the living room…
-
Real screen
…and it knows in the kitchen…
“What’s on Thursday?”
-
Real screen
…and in the den.
“Anything I’m forgetting Thursday?”
Even the things you forgot to ask.
The screens are the real Mnemos plugin, recalling a real memory inside Hermes. The family, the clock and the wording of the answers were staged for television.
Let’s see that again.
The kitchen and the den, on the real app.
On the phone, Laura asks.
“What’s on Thursday?” It answers: “Mia’s recital. Theo promised her the front row.”
At his desk, Theo asks.
“Anything I’m forgetting Thursday?” It answers: “Mia’s recital. You promised her the front row.”
Four memories came to mind.
That’s the light beside the chat: the recital, recycling night, and two hot chocolates he promised and kept.
Hermes Agent with the Mnemos plugin, recorded as it ran and redrawn here at its normal size. The recall is real: the answers could only be given because the memory had come to mind. A stand-in model spoke them, the family is made up, and the phone is the Hermes app in a phone-sized window.
But wait, there’s more!
Not a real scientist
Real memory
“Each little light is a memory. Mnemos ties them together… just like you do.”
It wakes up already knowing you.
Each session, it reads back what it kept before you say a word.
It keeps thinking after you’ve gone to bed.
A deeper pass runs every night. This is normal.
It remembers in its own words.
What you told it, what you decided together, what it got wrong.
One file. On your machine.
No company holds it, so no one elsewhere can switch it off.
Unplug it, and the memory stays.
Uninstalling Mnemos leaves the file where it is. Deleting it is up to you.
And you can look inside!
Type mnemos log and its notebook opens, on your own machine.
Its days.
Everything it kept, a day at a time: memories as they formed, journal entries, and its notes to you.
The real page, opened on the commercial’s made-up family. Its two journal entries and two notes were written for this picture, and the pointer is a simulation. “stand-in” is the model that played the part; yours shows its own.
But how does it work?
The way yours does. It’s modelled on how brains remember.
It keeps it.
In its own words. A new memory is held steady for its first three days.
Use it, and it stays.
Each recall brings it back, and it fades more slowly after.
Before it goes, it’s asked.
“This is fading. What did it teach you?”
The lesson stays.
Kept in its own words, and fading far more slowly than the details did.
Fading never deletes. A memory goes quiet, then into an archive, and a recall can still bring it back. One memory’s first 50 days, redrawn from Fig. 3 of the Mnemos README, which runs it on Mnemos’s own rules. Upkeep runs every four hours, with a deeper pass each night.
So what’s different?
It isn’t your memory system. It’s the agent’s.
| It is | It isn’t |
|---|---|
| It isThe agent’s own memory.It decides what’s worth carrying and writes it in its own words. Nothing else writes in its place. | It isn’tYour filing system.It won’t index your documents or search your code. |
| It isA memory that fades.What isn’t used goes quiet. What it taught is kept. | It isn’tA recording of everything.Point a firehose at it, and what it’s for gets buried. |
| It isOne file on your machine.Uninstall Mnemos and the file stays. Deleting it is up to you. | It isn’tA service.No account. No company holds it, so no one elsewhere can switch it off. |
| It isFor any agent that speaks MCP.Hermes, Claude Code, Codex and more. What each can take differs, and the guide says how. | It isn’tMagic.Saved as plain files, the same memories did about as well on facts. What files don’t do is get the agent to keep them, or wake it with them. |
And yes, we tested it.
On Claude Code, against the memory it comes with.
Facts recalled, a partly right answer counting half. The same model every time, the questions written before any run, the answers judged blind. October 2026. Run on Claude Code, not on Hermes.
TheoMade it to the front row
“I promised her the front row. This time, I was in it.”
Theo is not a real father. The plugin is a real plugin.
Don’t touch that dial!
Two channels. Both of them are us.
Now how much would you pay?
Not $39.95. Not $29.95. Not even $19.95.
It’sFree!
Free and open source. Send no money. There is nothing here to buy.
Here’s how to order
Mnemos
A memory plugin for Hermes.
Get yours nowgithub.com/Riley-Coyote/mnemos-mcpNo operators. No shipping. No handling.
Or order from your own terminal
pip install "mnemos-continuity[mcp,embeddings]"mnemos embeddings downloadmnemos connect hermes --writeThen start Hermes. It wakes with its memory. Needs Python 3.10 or newer; the second line fetches a small local model, once. Runs on macOS and Linux; on Windows, all but the scheduled parts. On another agent? mnemos connect lists the ones on your machine.
Mnemos keeps thinking after you’ve gone to bed. This is normal. Requires Hermes. Batteries not included. Mnemos is free, open-source software under the Apache 2.0 license; $19.95 was never the price, and nothing on this page can be bought. The family is fictional. Not sold in stores. Not sold anywhere.
