Mnemosyne runs on your own machine — the client starts it, so there is no endpoint to ping. 653 installs a week from npm. Last commit 29 Oct 2026.
Evidence-tracked local memory MCP server: one SQLite file; corrections retire dependent memories.
We read the source, 1 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const match = /^\/memories\/_sources\/([a-f0-9-]{36})\.txt$/.exec(command.path);
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mnemosyne -- npx -y mnemosy-ai
{
"mcpServers": {
"mnemosyne": {
"command": "npx",
"args": [
"-y",
"mnemosy-ai"
]
}
}
}
[mcp_servers.mnemosyne]
command = "npx"
args = ["-y", "mnemosy-ai"]
{
"mcpServers": {
"mnemosyne": {
"command": "npx",
"args": [
"-y",
"mnemosy-ai"
]
}
}
}
{
"servers": {
"mnemosyne": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mnemosy-ai"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
MNEMOSYNE_INDEX_MODE (Dense index used for semantic recall; defaults to auto).
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Answers built from our own checks of this server.