ThetaSwap is a Decentralized Exchange (DEX) that utilizes UniSwap V2 contracts, offering a simple way to trade TNT20 tokens on the Theta Blockchain. OpenTheta operates only the frontend, providing users with an intuitive interface to interact with the ThetaSwap smart contracts. Additionally, we have integrated the DeFi checkout solution from Wert.io, enabling users to purchase TNT20 tokens on ThetaSwap using their credit cards.