Frontend Developer for PDF Data Gathering

I have a vibe-coded frontend that works, connected to gather data from PDFs thanks to an API. I changed the tool that analyse PDF and I am now using my own algorithm developped recently by another dev. I need a freelancer to migrate the API connexion from the old connecion to the new one. The ideal candidate will have experience with APIs and is willing to test himself the solution to see if this work. Please consider this : the document "app_prd" have been done with AI and I checked myself. It is overall correct but there might be some approximations. Please take this into account.