io.github.daedalus/mcp-external-memory
An MCP server that gives LLMs persistent, searchable semantic memory
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
mcp-external-memoryclaude mcp add mcp-external-memory -- uvx mcp-external-memory==0.1.2
{
"mcpServers": {
"mcp-external-memory": {
"command": "uvx",
"args": [
"mcp-external-memory==0.1.2"
]
}
}
}
Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
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-smallmodel - 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
Frequently asked questions
What is io.github.daedalus/mcp-external-memory?
An MCP server that gives LLMs persistent, searchable semantic memory
How do I install io.github.daedalus/mcp-external-memory?
It runs on your machine. In Claude Code: claude mcp add mcp-external-memory -- uvx mcp-external-memory==0.1.2. For other clients, paste the JSON configuration from this page into their MCP settings.
Does io.github.daedalus/mcp-external-memory need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is io.github.daedalus/mcp-external-memory open source?
Yes. Its code is on GitHub under the MIT license.
Who maintains io.github.daedalus/mcp-external-memory?
It is published by daedalus. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.