Is the mnema MCP server free to use?

Yes. mnema is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the mnema MCP server free to use?

Yes. mnema is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Mnema

Local-first, formally verified memory for AI agents: consult/learn/related/list over MCP.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "mnema": {
      "command": "npx",
      "args": [
        "-y",
        "https://modelcontextprotocol.io).**"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

Mnema

Local-first, formally verified memory for AI agents — one shared store, every client, over MCP.

Your agents rent their intelligence from a lab; their memory should be yours. Mnema is a single, durable store of what your agents have learned — consult it before you act, learn a durable fact, walk the related graph, list what's recent. Data lives in ~/.mnema on your machine and nothing leaves it unless you point it somewhere.

Verified engine. The embedded engram database is formally specified and machine-checked (property catalog discharged by 250+ tests, an exhaustive CRDT conformance model checker, Kani proofs, and a TLA⁺ model). Every released binary passed that gate on its exact commit.
Local-first. An open, append-only segment format in ~/.mnema. No cloud, no account.
One store, every client. Claude Code, Claude Desktop, Cursor, your scripts, and your CI all talk to the same memory. Recall is lexical + graph spreading-activation (plus optional semantic embeddings), with an honest confidence band on every answer.

This repository hosts the public release bundles (.mcpb) and prebuilt binaries. The product, docs, and downloads live at mnema.zimac.ai.

Install

From the MCP Registry (recommended)

Mnema is published to the official MCP Registry as ai.zimac/mnema. Any registry-aware client can install it by name; it pulls the platform .mcpb bundle from this repo's releases and verifies its fileSha256.

`.mcpb` bundle (manual)

Grab the bundle for your platform from the latest release and open it with an MCP-bundle-aware client (e.g. Claude Desktop → Extensions):

Platform	Asset
macOS (universal)	`mnema-<version>-macos-universal.mcpb`
Linux (x86_64)	`mnema-<version>-linux-x86_64.mcpb`

A .mcpb is a ZIP of a manifest.json, the mnema binary, and this README. Each is dry-run verified (the bundled binary completes an MCP initialize handshake) before release.

Headless binary (`curl | sh`)

For agents, scripts, and CI — installs the standalone mnema binary:

Terminal

curl -fsSL https://mnema.zimac.ai/install.sh | sh

(macOS universal + Linux x86_64 prebuilt; anything else builds from source. The macOS GUI app is a separate download at mnema.zimac.ai.)

Give your agents memory

Terminal

claude mcp add mnema -- mnema mcp

That's the whole setup: mnema mcp auto-starts the shared local store if it isn't running, and the session gets four tools — consult (search before you act), learn (record a durable fact), related (graph neighbours), list (browse). Any MCP client works; the generic config is:

config.json

{ "mcpServers": { "mnema": { "command": "mnema", "args": ["mcp"] } } }

Point it at a shared / team store

The same binary bridges to a remote Mnema (a token-protected mnema serve or a hosted learnings pod) instead of the local one:

MNEMA_URL=https://memory.example.com MNEMA_TOKEN=<secret> mnema mcp

With a non-loopback URL nothing is auto-started — it's a pure authenticated bridge.

Configuration

Env	Default	What
`MNEMA_DATA_DIR`	`~/.mnema`	Where the store lives
`MNEMA_URL`	`http://127.0.0.1:7077`	Store the CLI/MCP bridge targets
`MNEMA_TOKEN`	—	Bearer credential for a remote store

Related MCP Servers

View all in Knowledge & Memory View all alternatives

Frequently Asked Questions about Mnema

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mnema": { "command": "npx", "args": ["-y", "mnema"] } }

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Technical Specs & Signals

CategoryKnowledge & Memory

37Quality signal: Fair · 37/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity2/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

AllMCPs Server

The official MCP server for AllMCPs.com - submit and manage tools directly from your AI. The open directory for MCP servers. Connect Claude, Cursor, Windsurf, and AI agents to databases, tools, files, and APIs. Explore 3,181+ servers. AllMCPs is the premier, open directory for discovering, evaluating, and installing Model Context Protocol (MCP) servers to equip AI agents and LLMs with real-world superpowers.

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More in 🧠 Knowledge & Memory →Best MCP servers for Memory & Knowledge →Alternatives to Mnema →Install in Claude Desktop Install in Cursor Install in VS Code

Mnema

Local-first, formally verified memory for AI agents: consult/learn/related/list over MCP.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "mnema": {
      "command": "npx",
      "args": [
        "-y",
        "https://modelcontextprotocol.io).**"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

Mnema

Local-first, formally verified memory for AI agents — one shared store, every client, over MCP.

Verified engine. The embedded engram database is formally specified and machine-checked (property catalog discharged by 250+ tests, an exhaustive CRDT conformance model checker, Kani proofs, and a TLA⁺ model). Every released binary passed that gate on its exact commit.
Local-first. An open, append-only segment format in ~/.mnema. No cloud, no account.
One store, every client. Claude Code, Claude Desktop, Cursor, your scripts, and your CI all talk to the same memory. Recall is lexical + graph spreading-activation (plus optional semantic embeddings), with an honest confidence band on every answer.

This repository hosts the public release bundles (.mcpb) and prebuilt binaries. The product, docs, and downloads live at mnema.zimac.ai.

Install

From the MCP Registry (recommended)

`.mcpb` bundle (manual)

Grab the bundle for your platform from the latest release and open it with an MCP-bundle-aware client (e.g. Claude Desktop → Extensions):

Platform	Asset
macOS (universal)	`mnema-<version>-macos-universal.mcpb`
Linux (x86_64)	`mnema-<version>-linux-x86_64.mcpb`

A .mcpb is a ZIP of a manifest.json, the mnema binary, and this README. Each is dry-run verified (the bundled binary completes an MCP initialize handshake) before release.

Headless binary (`curl | sh`)

For agents, scripts, and CI — installs the standalone mnema binary:

Terminal

curl -fsSL https://mnema.zimac.ai/install.sh | sh

(macOS universal + Linux x86_64 prebuilt; anything else builds from source. The macOS GUI app is a separate download at mnema.zimac.ai.)

Give your agents memory

Terminal

claude mcp add mnema -- mnema mcp

config.json

{ "mcpServers": { "mnema": { "command": "mnema", "args": ["mcp"] } } }

Point it at a shared / team store

The same binary bridges to a remote Mnema (a token-protected mnema serve or a hosted learnings pod) instead of the local one:

MNEMA_URL=https://memory.example.com MNEMA_TOKEN=<secret> mnema mcp

With a non-loopback URL nothing is auto-started — it's a pure authenticated bridge.

Configuration

Env	Default	What
`MNEMA_DATA_DIR`	`~/.mnema`	Where the store lives
`MNEMA_URL`	`http://127.0.0.1:7077`	Store the CLI/MCP bridge targets
`MNEMA_TOKEN`	—	Bearer credential for a remote store

Related MCP Servers

View all in Knowledge & Memory View all alternatives

Frequently Asked Questions about Mnema

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mnema": { "command": "npx", "args": ["-y", "mnema"] } }

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<a href="https://allmcps.com/mcp/mnema"><img src="https://allmcps.com/api/badge/mnema?style=directory" alt="Mnema on AllMCPs" /></a>

Technical Specs & Signals

CategoryKnowledge & Memory

37Quality signal: Fair · 37/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity2/15

Community engagement0/10

★ Featured

AllMCPs Server

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Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to get the verified badge.

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More in 🧠 Knowledge & Memory →Best MCP servers for Memory & Knowledge →Alternatives to Mnema →Install in Claude Desktop Install in Cursor Install in VS Code

Mnema

Quick Install

Install Config Generator

Documentation Overview

Mnema

Install

From the MCP Registry (recommended)

.mcpb bundle (manual)

Headless binary (curl | sh)

Give your agents memory

Point it at a shared / team store

Configuration

Links

Related MCP Servers

Frequently Asked Questions about Mnema

AllMCPs Directory Badge

Technical Specs & Signals

AllMCPs Server

Own this project?

Share & Embed

Explore more

Mnema

Quick Install

Install Config Generator

Documentation Overview

Mnema

Install

From the MCP Registry (recommended)

.mcpb bundle (manual)

Headless binary (curl | sh)

Give your agents memory

Point it at a shared / team store

Configuration

Links

Related MCP Servers

Frequently Asked Questions about Mnema

AllMCPs Directory Badge

Technical Specs & Signals

AllMCPs Server

Own this project?

Share & Embed

Explore more

`.mcpb` bundle (manual)

Headless binary (`curl | sh`)

`.mcpb` bundle (manual)

Headless binary (`curl | sh`)