OPNSimpleSwap
A simple and secure decentralized exchange (DEX) on OPN Chain for seamless token swapping and liquidity provision
by raven_ua · submitted Jun 3, 2026
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Description
01/03
What the builder said.
Written by the team, rendered as the markdown they typed in the submission wizard.
What we built
OPNSimpleSwap is a decentralized cryptocurrency exchange (DEX) running on the OPN Chain Testnet. It implements an Automated Market Maker (AMM) protocol inspired by classic Uniswap V2 mechanics, allowing users to swap custom ecosystem assets and provide liquidity without relying on centralized intermediaries. For this build, we successfully deployed and integrated the core exchange factory along with two custom token assets: Raven Finance Token (RVN) and OPNDollar (OPND).
Why
As the OPN Chain ecosystem scales, establishing robust open-finance primitives is essential for seamless asset velocity. We built OPNSimpleSwap to demonstrate how easily decentralized token markets can be bootstrapped on top of OPN Chain's fast and low-fee infrastructure. This layout serves as a transparent foundational layer for automated liquidity provision, enabling seamless token interaction for future DePIN and DeFi dApps in the ecosystem.
How it works
- Smart Contracts: Built with Solidity 0.8.20 and deployed via Remix directly onto the IOPN Testnet.
- Core Logic: The architecture relies on the Constant Product Formula ($x \times y = k$) to mathematically determine asset pricing based on existing liquidity reserves.
- Liquidity Provision: Users can execute
approveallowances for both ERC-20 tokens and calladdLiquidityto deposit pairs into the smart contract pool. - Swapping: Automated routing calculates trade outcomes (including a standard 0.3% LP fee) and safely executes secure token distribution on-chain.
Roadmap
02/03
What ships next.
The builder's own next-quarter plan. Use it to gauge follow-through and ambition.
Q3 2026:
Finalize smart contract optimization and security self-audits.
Launch the initial Frontend Interface (UI/UX) integrated with MetaMask for OPN Chain Testnet.
Open public testnet trading and liquidity pools for RVN and OPND.
Q4 2026:
Deploy the OPNSimpleSwap protocol on the OPN Chain Mainnet.
Launch a community liquidity mining program to bootstrap initial TVL (Total Value Locked).
Introduce advanced analytics dashboard for tracking pool volumes and fees.
Q1 2027:
Integrate cross-chain bridging features to bring assets from other ecosystems.
Establish a DAO governance model using the Raven Finance Token (RVN) for community-driven pool listings.
On-chain proof
03/03
3 contracts on OPN Chain.
The chain itself confirmed every deployment is valid, signed by the builder's wallet, and inside the season's window.