Basic MCP Server
A WebSocket-based MCP server that provides basic echo functionality and secure database querying capabilities. Includes Dokku deployment configuration for easy hosting with PostgreSQL integration.
README
MCP Server (Dokku-ready)
Features
- MCP over WebSocket at
/mcp - Health check at
/health - Tools:
echo(message)db_query(sql, params[])— SELECT-only, parameterized
Local Dev
cp .env.example .env
npm install
npm run dev
# open http://localhost:3000/health
Build & Run
npm run build
npm start
Deploy to Dokku (no SSH keys)
On your server (SSH via password for learning), assuming:
- app name: mcp
- domain: mcp.deepthinkersai.com
- Postgres service: mcpdb
Create app, domain, db, link, HTTPS:
sudo dokku apps:create mcp
sudo dokku domains:set mcp mcp.deepthinkersai.com
sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres || true
sudo dokku postgres:create mcpdb
sudo dokku postgres:link mcpdb mcp
sudo dokku plugin:install https://github.com/dokku/dokku-letsencrypt.git letsencrypt || true
sudo dokku config:set --no-restart mcp DOKKU_LETSENCRYPT_EMAIL=you@example.com
sudo dokku letsencrypt:enable mcp
sudo dokku letsencrypt:cron-job --add
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