Tiger Memory MCP Server
A simple memory implementation
Installation
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Documentation
Tiger Memory MCP Server
A simple memory system designed to allow LLMs to store and retrieve information. This provides some focused tools to LLMs via the Model Context Protocol.
API
All methods are exposed as MCP tools and REST API endpoints.
Development
Cloning and running the server locally.
git clone git@github.com:timescale/tiger-memory-mcp-server.git
Building
Run npm i to install dependencies and build the project. Use npm run watch to rebuild on changes.
Create a .env file based on the .env.sample file.
cp .env.sample .env
Testing
The MCP Inspector is very handy.
npm run inspector
| Field | Value |
|---|---|
| Transport Type | STDIO |
| Command | node |
| Arguments | dist/index.js |
Testing in Claude Desktop
Create/edit the file ~/Library/Application Support/Claude/claude_desktop_config.json to add an entry like the following, making sure to use the absolute path to your local tiger-memory-mcp-server project, and real database credentials.
{
"mcpServers": {
"tiger-memory": {
"command": "node",
"args": [
"/absolute/path/to/tiger-memory-mcp-server/dist/index.js",
"stdio"
],
"env": {
"PGHOST": "x.y.tsdb.cloud.timescale.com",
"PGDATABASE": "tsdb",
"PGPORT": "32467",
"PGUSER": "readonly_mcp_user",
"PGPASSWORD": "abc123"
}
}
}
}
Deployment
We use a Helm chart to deploy to Kubernetes. See the chart/ directory for details.
The service is accessible to other services in the cluster via the DNS name tiger-memory-mcp-server.savannah-system.svc.cluster.local.
Database setup
Creating the database user:
CREATE USER tiger_memory WITH PASSWORD 'secret';
GRANT CREATE ON DATABASE tsdb TO tiger_memory;
Secrets
Run the following to create the necessary sealed secrets. Be sure to fill in the correct values.
kubectl -n savannah-system create secret generic tiger-memory-mcp-server-database \
--dry-run=client \
--from-literal=user="tiger_memory" \
--from-literal=password="secret" \
--from-literal=database="tsdb" \
--from-literal=host="x.y.tsdb.cloud.timescale.com" \
--from-literal=port="32467" \
-o yaml | kubeseal -o yaml
# https://logfire-us.pydantic.dev/tigerdata/tigerdata/settings/write-tokens
kubectl -n savannah-system create secret generic tiger-memory-mcp-server-logfire \
--dry-run=client \
--from-literal=token="pylf_v1_us_" \
-o yaml | kubeseal -o yaml
# https://login.tailscale.com/admin/settings/keys
kubectl -n savannah-system create secret generic tiger-memory-mcp-server-tailscale \
--dry-run=client \
--from-literal=authkey="tskey-auth-" \
-o yaml | kubeseal -o yaml
Update ./chart/values/dev.yaml with the output.
