After the special API seller has completed the connection with INSTO Simple API 2.0, he/she can download the INSTO iTap assistant and install the INSTO Tap induction payment function in the App developed by the seller to enjoy a brand new user experience.

【API connection】
After becoming an INSTO Tap member and applying to become a seller, go to the seller backend to make API-related settings.
Seller backend URL: https://merchant.ins.to
After the settings are complete, you can directly obtain the api_key and api_secret of the test environment and the official environment.