# Connection to Rithmic To connect OptimusFLOW to a broker that uses Rithmic technology, it is sufficient to have (or create a new) account. ## Existing Accounts * Open connection manager, select Rithmic and specify the type of connection (Demo / Real). * Enter your login and password and click **Connect.** * If necessary, the server can be changed in the connection settings. By default, the Rithmic Paper Chicago server is set for demo accounts and the Rithmic Aurora Chicago server is set for real accounts. ![Enter login data for Rithmic, choose server type, and change connection settings if needed.](/files/-M1S2RBs_hKTqZ7HZPmo) ## New Accounts {% embed url="" %} How to connect with a live or demo Rithmic account {% endembed %} * Create a new demo or open a real account with any broker supporting Rithmic technology, accept agreements, and start using our platform. * To register for an Optimus Flow demo and 14 day trial of the Rithmic datafeed, please follow this [link](https://www.rithmic.com/demo.html#sign-up\&customer=OptimusFutures). * Fill in all the required fields * Accept *"Market Data Subscription Agreement"* and *"Market Data Self-Certification"* --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.optimusflow.app/connections/connection-to-rithmic.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.