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Tiger Memory MCP Server

Official
by timescale
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TypeScript
Remote

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.

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