> ## Documentation Index > Fetch the complete documentation index at: https://docs.kadoa.com/llms.txt > Use this file to discover all available pages before exploring further. # Usage Kadoa charges per workflow and rows extracted. You only pay for successfully extracted data. ## What is a Workflow? * **One source**: Each workflow targets a single source. * **One schema**: Define the fields you need. Refinements allowed. * **Free preview**: You can test and iterate. Only approved workflows count towards quota. ## What Counts as a Row? One complete row extracted according to your schema (e.g., one product with title, price, description). ## Monitor Your Usage Track your current balance and usage trends with our [**Usage Dashboard**](https://www.kadoa.com/usage). You can check your remaining credits and view your usage patterns over time. Usage dashboard