have something at your fingertips
US /hæv ˈsʌmθɪŋ æt jʊər ˈfɪŋɡərˌtɪps/
UK /hæv ˈsʌmθɪŋ æt jʊər ˈfɪŋɡərˌtɪps/

1.
to have information or resources readily available and accessible
:
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With the internet, you can have all the information at your fingertips.
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Our new software allows you to have all client data at your fingertips.