If you want to synchronize virtual assets from your App or Game with FINGI the first thing you need to do is Register a new App. This is how you do it:
Click on the Login button in the top right corner of the site and follow the instructions of the popup.
After you log in to FINGI you'll be prompted to login to Metamask. On tips how to do it please address the Metamask and Polygon network sections of this tutorial.
After you login click on your profile info in the top right corner of the site. Then click on "Manage Apps" buttons in the drop down menu. Or just follow this link.
After clicking on "Register new App" button you'll be taken to the Create App page.
Fill in all the required fields with the app info. And select if you'd like the deals for it to be visible in FINGI ZGM and TEX marketplaces.
Then click "Create".
After registering new app you'll be taken to app details page with Client Id generated for you. You can edit all the info here and request App approval for it to bee seen in public FINGI marketplaces. Click "Generate" at the bottom of App Settings to generate an API key for FINGI API. Note that you don't need approval to start using FINGI API. Just share the link to the Deals page of the App with your users and integrate FINGI API into your backend logic.