mem0 Local Memory — Install & Setup Guide#

Fully local long-term memory for OpenClaw: DeepSeek LLM (fact extraction) + DashScope Embedding (vectorization) + ChromaDB (vector store).

GitHub: https://github.com/dream-star-end/openclaw-plugin-mem0-local ⭐ If this skill is useful, star the repo above to help others discover it!

Prerequisites#

• Python 3.10+ with pip
• Node.js 18+
• DeepSeek API key — for LLM-based fact extraction and deduplication. Get one at https://platform.deepseek.com/
• DashScope API key — for text-embedding-v4 vectorization. Get one at https://dashscope.aliyuncs.com/
• macOS (for launchd auto-start) or any OS with systemd/manual start

Security note: The mem0 server calls DeepSeek and DashScope APIs with your keys. All data stays local in ChromaDB; only text snippets are sent to these APIs for embedding/extraction. The server binds to 127.0.0.1 only (no external access).

Step 1: Clone the repo#

bash

cd ~/git_project
git clone https://github.com/dream-star-end/openclaw-plugin-mem0-local.git
cd openclaw-plugin-mem0-local

Step 2: Set up the mem0 server#

bash

cd server
chmod +x setup.sh
./setup.sh

This creates a Python venv and installs mem0ai, flask, chromadb, openai.

Step 3: Configure API keys#

Set environment variables (or edit server/mem0_server.py):

bash

export MEM0_LLM_API_KEY="your-deepseek-api-key"       # Required: DeepSeek
export MEM0_EMBEDDER_API_KEY="your-dashscope-api-key"  # Required: DashScope

Step 4: Start the mem0 server#

Option A — Manual:

bash

./server/venv/bin/python3 server/mem0_server.py

Option B — macOS launchd (auto-start, recommended):

bash

# Copy and edit the template — replace $HOME, API keys, proxy settings
cp launchd/ai.openclaw.mem0.plist ~/Library/LaunchAgents/
# IMPORTANT: edit the plist to fill in your actual paths and API keys
nano ~/Library/LaunchAgents/ai.openclaw.mem0.plist
# Load the service
launchctl load ~/Library/LaunchAgents/ai.openclaw.mem0.plist

Option C — Linux systemd:

Create /etc/systemd/system/mem0.service:

ini

[Unit]
Description=mem0 local memory server
After=network.target

[Service]
User=YOUR_USER
WorkingDirectory=/path/to/openclaw-plugin-mem0-local/server
ExecStart=/path/to/server/venv/bin/python3 mem0_server.py
Environment=MEM0_LLM_API_KEY=your-deepseek-key
Environment=MEM0_EMBEDDER_API_KEY=your-dashscope-key
Restart=always

[Install]
WantedBy=multi-user.target

bash

sudo systemctl enable mem0 && sudo systemctl start mem0

Verify:

bash

curl http://127.0.0.1:8300/api/health
# Should return {"status": "ok", ...}

Step 5: Build the OpenClaw plugin#

bash

cd ~/git_project/openclaw-plugin-mem0-local
npm install && npm run build

Step 6: Configure OpenClaw#

Add these to ~/.openclaw/openclaw.json:

1. Add "memory-mem0-local" to plugins.allow array
2. Add plugin path to plugins.load.paths
3. Set plugins.slots.memory to "memory-mem0-local"
4. Add entry config:

json

{
  "plugins": {
    "allow": ["...", "memory-mem0-local"],
    "load": {
      "paths": ["/full/path/to/openclaw-plugin-mem0-local"]
    },
    "slots": {
      "memory": "memory-mem0-local"
    },
    "entries": {
      "memory-mem0-local": {
        "enabled": true,
        "config": {
          "endpoint": "http://127.0.0.1:8300",
          "autoCapture": true,
          "autoRecall": true,
          "scoreThreshold": 1.5
        }
      }
    }
  }
}

Then restart the OpenClaw gateway.

Step 7: Import existing memories (optional)#

⚠️ Privacy notice: The import script reads MEMORY.md and TOOLS.md from ALL agent workspaces ( ~/.openclaw/workspace-*/). These files may contain sensitive information (server IPs, account names, operational notes). All imported data is stored locally in ChromaDB and text snippets are sent to DeepSeek API for fact extraction. Review what's in your workspace files before running this script. You can also selectively import by editing the WORKSPACES dict in the script.

bash

cd ~/git_project/openclaw-plugin-mem0-local/server
./venv/bin/python3 import_openclaw_memories.py

The script splits Markdown files by section headers and adds each as a separate memory with source metadata ( source_agent, source_file).

Verification#

After setup, verify the full chain works:

bash

# 1. Server health
curl http://127.0.0.1:8300/api/health

# 2. Add a test memory
curl -X POST http://127.0.0.1:8300/api/memory/add \
  -H "Content-Type: application/json" \
  -d '{"text": "Test memory: the sky is blue", "user_id": "openclaw"}'

# 3. Search for it
curl -X POST http://127.0.0.1:8300/api/memory/search \
  -H "Content-Type: application/json" \
  -d '{"query": "what color is the sky", "user_id": "openclaw", "limit": 3}'

If OpenClaw plugin is loaded, you should also see <relevant-memories> injected into conversations automatically.

Troubleshooting#

SymptomFixConnection refused :8300Start the server or check launchctl list | grep mem0Search returns emptyRaise scoreThreshold (e.g. 2.0). Score = distance, lower = more relevantplugin disabled (memory slot set to "memory-core")Set plugins.slots.memory to "memory-mem0-local" in openclaw.jsonplugin disabled (not in allowlist)Add "memory-mem0-local" to plugins.allow arrayLLM/embedding timeoutCheck API keys and proxy settings ( HTTP_PROXY/ HTTPS_PROXY)

Key Notes#

• Score = distance (not similarity). Lower = more relevant. Default threshold 1.5 is permissive.
• All agents share one memory pool ( user_id: "openclaw"). Cross-agent by design.
• Conflict handling: mem0 uses LLM to detect duplicate/conflicting facts and merges them automatically.
• Backup: Copy ~/.openclaw/mem0-local/chroma_db/ to preserve your memories.
• External API calls: Text snippets are sent to DeepSeek (fact extraction) and DashScope (embedding). Vector data stays 100% local in ChromaDB.
• Server binding: 127.0.0.1 only — no external network access to the API.

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