Does Typo has access to my code?

Typo does not access or store your code at all. It accesses the metadata only to generate insights for Dev Analytics. For Code Analysis, we do have a read access to analyse the code but we do not save your entire code anywhere in our systems. The analysis is run on a temporary storage and only the code snipped having the issue is saved to highlight & suggest relevant code fixes.

The same is clearly highlighted on the permissions screen as well that is visible to you as the first step when you onboard on Typo.