> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/emotivbci/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/emotivbci/performance-metrics/frequency-rate.md).

# Frequency rate

Performance Metrics are shown at 0.1Hz, which is the frequency rate the Performance Metric API will output at with a [BASIC license](https://www.emotiv.com/developer/) for application with Node-RED or another third party application. X-axis is number of samples.