That depends on the pickup pattern of the microphone, the gain on the mic and the distance between the mic and the keyboard.
The pickup pattern dictates which direction(s) the microphone is sensitive to: see https://ehomerecordingstudio.com/microphone-polar-patterns/ as one example. You'd want a cardiod mic turned so that the least sensitive part of the mic faces your keyboard.
Secondly you'll need to get the microphone close to you so you don't need a ton of gain to be heard well. You can put the mic 10 feet from you and with enough amplification people will hear you, but they'll hear every chair squeak and you shuffling your feet and the ac coming on as well. Get it close and you don't have to increase gain nearly as much.
Finally the greater the distance between the mic and keyboard the less likely your tapping will be heard. But again if gain has to be used to pick you up, you're more likely to hear the keyboard even with a cardiod mic because sound still reflects and echoes. Consider something like the Blue snowball as an intro microphone or call up a supplier and have a conversation with a real audio tech, which I am not.
The issue is once you get off into mics then you have to ask yourself which input type(s) do you want, what sort of pre-processing you may want, etc.
