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An MCP server that gives LLMs persistent, searchable semantic memory
About
An MCP server that gives LLMs persistent, searchable semantic memory
Security Report
Valid MCP server (1 strong, 4 medium validity signals). 3 known CVEs in dependencies (0 critical, 3 high severity) Package registry verified. Imported from the Official MCP Registry.
11 files analyzed · 4 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-daedalus-mcp-external-memory": {
"args": [
"mcp-external-memory"
],
"command": "uvx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
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
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