I want to link my website through api

I want to link my website through api from this site https://www.g2a.com/

This is the name of the products that I add
- Playstation energies
- xbox cards
- pubg cards
netflix cards
- google play cards
- YouTube Plus Cards
- Spotify Cards
- Minecraft Cards
- iTunes Cards
- steam . cards
Amazon cards
- Astar Play Cards
- Fortnite cards
- Anghami cards
- FIFA Queens