Install & run the Helix Connector · Help

1. Install the NinjaTrader add-on

1Download the add-on archive from the Onboarding screen.
2In NinjaTrader: Tools → Import → NinjaScript Add-On, and select the downloaded file.
3Restart NinjaTrader so the add-on loads.

Only import the single official Helix add-on file. Backup files (ending in .helixbak) are inert and should not be renamed or imported — duplicate class names will break the NinjaScript compile.

2. Run the connector

Open PowerShell in the folder where you saved the connector, then run it with your cloud URL and connection key:

.\helix-connector.exe `
  --cloud-url "wss://<your-inference-host>/" `
  --key "hlx_xxxxxxxxxxxxxxxx"

The exact cloud URL and your key are shown on the Onboarding screen — copy them from there. When the connector connects, Onboarding will show a Paired status and list your discovered NinjaTrader accounts.

The connector is read-only and off the order path. It streams market data and account telemetry up; it never sends orders or receives your broker credentials.