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DataProbe MCP

by lck-001
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DataProbe MCP

A minimal MCP server for DataProbe data question answering and read-only SQL queries.

It supports:

  • stdio mode for local MCP clients.

  • Streamable HTTP mode for a long-running remote MCP service.

Tools

  • dataprobe_health: check DataProbe service health.

  • dataprobe_list_datasets: list available datasets.

  • dataprobe_ask: ask a natural-language data question and poll for the final result.

  • dataprobe_get_ask_result: get an ask result by query id.

  • dataprobe_query_sql: execute a read SQL query through DataProbe.

Related MCP server: Copilot SQL MCP POC

Runtime

  • Node.js 18 or newer.

  • No npm dependencies are required.

Environment Variables

Required auth, choose one:

  • DATAPROBE_ACCESS_TOKEN

  • DATAPROBE_USERNAME and DATAPROBE_PASSWORD

Optional:

  • DATAPROBE_BASE_URL, default: http://10.0.12.186:8080

  • DATAPROBE_DATASET_ID, default dataset id used by query tools

  • DATAPROBE_REFRESH_TOKEN

  • DATAPROBE_TIMEOUT_MS, default: 120000

  • DATAPROBE_MCP_DEBUG_LOG, default: ./dataprobe-mcp-debug.log

  • DATAPROBE_MCP_TRANSPORT, set to http for remote service mode

  • DATAPROBE_MCP_HOST, default: 0.0.0.0

  • DATAPROBE_MCP_PORT, default: 3000

  • DATAPROBE_MCP_PATH, default: /mcp

Compatible Ontology variable names are also supported:

  • ONTOLOGY_API_URL

  • ONTOLOGY_DATASET_ID

  • ONTOLOGY_PAT

  • ONTOLOGY_API_KEY

Remote Server Deployment

Clone the repository on the server:

sudo mkdir -p /opt
sudo chown -R "$USER:$USER" /opt
cd /opt
git clone https://github.com/lck-001/dataprobe-mcp.git
cd /opt/dataprobe-mcp

Install Node.js if needed:

node -v

For Ubuntu/Debian:

curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
sudo apt-get install -y nodejs

Create the server environment file:

cat > /opt/dataprobe-mcp/.env <<'EOF'
export DATAPROBE_BASE_URL="http://10.0.12.186:8080"
export DATAPROBE_DATASET_ID="_ontology_a3f60d33_f34f_572b_9377_26aec3ac6eb1"
export DATAPROBE_USERNAME="admin"
export DATAPROBE_PASSWORD="change-me"
export DATAPROBE_TIMEOUT_MS="120000"
export DATAPROBE_MCP_TRANSPORT="http"
export DATAPROBE_MCP_HOST="0.0.0.0"
export DATAPROBE_MCP_PORT="3000"
export DATAPROBE_MCP_PATH="/mcp"
EOF

chmod 600 /opt/dataprobe-mcp/.env

Create a systemd service so the MCP server stays online:

sudo tee /etc/systemd/system/dataprobe-mcp.service >/dev/null <<'EOF'
[Unit]
Description=DataProbe MCP Streamable HTTP Server
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
WorkingDirectory=/opt/dataprobe-mcp
EnvironmentFile=/opt/dataprobe-mcp/.env
ExecStart=/usr/bin/node /opt/dataprobe-mcp/server.mjs
Restart=always
RestartSec=3
User=root

[Install]
WantedBy=multi-user.target
EOF

Start it:

sudo systemctl daemon-reload
sudo systemctl enable --now dataprobe-mcp
sudo systemctl status dataprobe-mcp

Test on the server:

curl http://127.0.0.1:3000/health

Test the MCP endpoint:

curl -s http://127.0.0.1:3000/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

If users connect from other machines, open the port or put it behind Nginx:

sudo ufw allow 3000/tcp

Codex Client Configuration

Each user can add this to their Codex config file.

Windows:

C:\Users\<username>\.codex\config.toml

macOS/Linux:

~/.codex/config.toml

Config:

[mcp_servers.dataprobe]
url = "http://SERVER_IP:3000/mcp"
startup_timeout_sec = 20.0
tool_timeout_sec = 120.0

[mcp_servers.dataprobe.tools.dataprobe_health]
approval_mode = "approve"

[mcp_servers.dataprobe.tools.dataprobe_list_datasets]
approval_mode = "approve"

[mcp_servers.dataprobe.tools.dataprobe_query_sql]
approval_mode = "approve"

Restart Codex after updating the config.

For production, prefer HTTPS and a private network, VPN, or reverse proxy allowlist.

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