Market Data API Acknowledgement
The Market Data API Acknowledgement is required for all users who intend to request market data through any API platform. Proceeding without this form being acknowledged, users will receive errors from their market data requests stating that market data is not subscribed.
This will effect users who trade programmatically with either the TWS API or the Web API.
This will also effect those that use Third Party software.
If you are not prompted through the notification bell after logging in to Client Portal, you can find the Market Data API Acknowledgement by:
- Log in to the Client Portal
- Click “Welcome {Your Name}” in the top right corner, and select “Settings”
- Select the “Market Data Subscriptions” button in the Settings page.
- On the right side of your settings page, you should see a box for “Market Data API Acknowledgement”. Please select the blue Cog Wheel icon to modify the settings.
- On the next page, under “Would you like to enable this functionality”, you will need to select “Yes” and then continue.
- The next page will display a form that must be reviewed and digitally signed.
- Logging out of all active platforms and then logging will allow market data access for your net API session.


