# How does registration for NDI Tools work? NDI Tools is free to use for end-users . In order to use the [NDI Launcher](https://docs.ndi.video/all/using-ndi/ndi-tools/ndi-tools-launcher) each individual device or computer needs to be registered. For environments with multiple devices, such as classrooms or training setups, each computer must be registered separately. Fortunately, [registration ](https://docs.ndi.video/all/using-ndi/ndi-tools/ndi-tools-launcher#register-your-ndi-tools)is quick and straightforward, enabling you to access the full suite of NDI Tools on every device with ease. --- # 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://docs.ndi.video/all/faq/ndi-tools/how-does-registration-for-ndi-tools-work.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.