Don't think a crypto exchange can be open-source, well we'd like to change your mind. Low fees (0.3%), open-source code, and we're one of the first solana Dex's (Decentralized Exchanges). Trinityswap is built on project serum giving you access to huge solana liquidity pools that are already funded.
Visit our documentation page here: https://github.com/jp12AI/trinityswap/blob/main/Documentation.pdf
Trinityswap is built on project serum: https://www.projectserum.com/
Visit: https://www.trinityswap.com/#/ to start trading on the solana blockchain now.
Invite link: https://discord.gg/sBfESAaaeV