External Memory MCP Server

mcp-external-memory

An MCP server that gives LLMs persistent, searchable semantic memory

7 tools GitHub PyPI

No known CVEs

No license

Maintained

Last commit 70d ago

Works with most clients

Transport: sse, http

7 tools · ~287 tok

Grade A · 0.1% of 200K ctx

Edit this pageView history

AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopsse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "io-github-daedalus-mcp-external-memory": {
      "args": [
        "mcp-external-memory"
      ],
      "command": "uvx"
    }
  }
}

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Read me

What External Memory MCP Server does

An MCP server that gives LLMs persistent, searchable semantic memory.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

uvx 'mcp-external-memory' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

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Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

82/100across 5 weighted dimensions

How we score →

0255075100

−18

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked mcp-external-memory against OSV.dev.

Inventory

Tools (7)

Click any tool to inspect its schema.

~287 tokens total

Community

Reviews

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How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is External Memory MCP Server safe to use?: External Memory MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install External Memory MCP Server?: External Memory MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can External Memory MCP Server do?: External Memory MCP Server provides 7 tools: memory_store, memory_search, memory_get, memory_delete, memory_list and 2 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with External Memory MCP Server?: External Memory MCP Server is compatible with claude-desktop, cursor, claude-code. It uses sse and http transport.
Is External Memory MCP Server actively maintained?: External Memory MCP Server is recently maintained — last commit was 70 days ago.

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Community

Discussion

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

from mcp_external_memory import memory_store, memory_search # Store a memory result = memory_store(content="Alice prefers dark mode", namespace="users", tags=["alice", "ui"]) # Search memories results = memory_search(query="what does Alice prefer?", namespace="users")

API

Tools

Tool

Description

memory_store

Persist text + optional namespace/tags/metadata

memory_search

Semantic search (cosine similarity) over all memories

memory_get

Retrieve a single memory by ID

memory_delete

Delete a memory by ID

memory_list

List memories with optional namespace/tag filter + pagination

memory_stats

Count of memories, namespaces, DB path

memory_update

Update an existing memory

Embedding Backends

The server supports multiple embedding backends:

TF-IDF (default): Pure Python, no external dependencies

OpenAI: Uses text-embedding-3-small model

Ollama: Local embeddings with Ollama

Set via MEMORY_EMBED_BACKEND environment variable.

git clone https://github.com/daedalus/mcp-external-memory.git cd mcp-external-memory pip install -e ".[test]" # run tests pytest # format ruff format src/ tests/ # lint ruff check src/ tests/ # type check mypy src/

Frequently Asked Questions

Is External Memory MCP Server safe to use?

External Memory MCP Server has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install External Memory MCP Server?

External Memory MCP Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can External Memory MCP Server do?

External Memory MCP Server provides 7 tools: memory_store, memory_search, memory_get, memory_delete, memory_list and 2 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with External Memory MCP Server?

External Memory MCP Server is compatible with claude-desktop, cursor, claude-code. It uses sse and http transport.

Is External Memory MCP Server actively maintained?

External Memory MCP Server is recently maintained — last commit was 70 days ago.

mcp-external-memory

An MCP server that gives LLMs persistent, searchable semantic memory.

Install

pip install mcp-external-memory

Usage

from mcp_external_memory import memory_store, memory_search

# Store a memory
result = memory_store(content="Alice prefers dark mode", namespace="users", tags=["alice", "ui"])

# Search memories
results = memory_search(query="what does Alice prefer?", namespace="users")

CLI

mcp-external-memory --help

API

Tools

Tool	Description
`memory_store`	Persist text + optional namespace/tags/metadata
`memory_search`	Semantic search (cosine similarity) over all memories
`memory_get`	Retrieve a single memory by ID
`memory_delete`	Delete a memory by ID
`memory_list`	List memories with optional namespace/tag filter + pagination
`memory_stats`	Count of memories, namespaces, DB path
`memory_update`	Update an existing memory

Embedding Backends

The server supports multiple embedding backends:

TF-IDF (default): Pure Python, no external dependencies
OpenAI: Uses text-embedding-3-small model
Ollama: Local embeddings with Ollama

Set via MEMORY_EMBED_BACKEND environment variable.

Development

git clone https://github.com/daedalus/mcp-external-memory.git
cd mcp-external-memory
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mypy src/

MCP Registry

mcp-name: io.github.daedalus/mcp-external-memory