MemeDex On IOPN
The first dedicated meme token DEX on OPN Chain — swap, stake, farm, launch & earn.
by vantung12331 · submitted Jun 4, 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
MemeDex is the first dedicated meme-token DeFi hub on OPN Chain. It bundles a full DeFi suite into one app: an AMM swap, native + LP staking/farming, a one-click token launchpad, presales with vesting, weekly trading-rewards airdrops, and a referral system — all powered by the native MEMEDEX token.
It runs on 12 verified smart contracts (Solidity 0.8.30, OpenZeppelin) deployed on OPN Testnet, with a Next.js 14 + Wagmi/Viem frontend wired directly to those contracts. Every feature is live and on-chain, not mocked.
Why
Meme communities are one of the strongest on-ramps into DeFi, but they're usually scattered across separate tools. MemeDex puts the whole lifecycle — launch a token, seed liquidity, trade, farm, reward top traders, and grow via referrals — in a single permissionless app on OPN Chain, so a community can go from idea to live market in minutes.
How it works
- Swap — Constant-product AMM (0.25% fee, K-invariant enforced). OPN is wrapped to WOPN, routed through MemeRouter against the MEMEDEX/WOPN pool.
- Stake & Farm — MasterChef distributes MEMEDEX rewards. Pool 0 stakes native OPN (depositNative), Pool 1 farms WOPN/MEMEDEX LP. APY & TVL computed live from reserves.
- Launch — MemeLaunchpad deploys a 1B-supply meme token in one click for a 2 OPN fee.
- Presale — PresaleFactory deploys & funds per-token presales: 50% TGE + 30-day linear vesting, soft/hard caps, and full buyer refunds if a sale is cancelled.
- Airdrop — TradingRewards snapshots volume and pays the top 20 traders weekly (30% to #1 down to 2% each), with double-claim protection.
- Referral — ReferralSystem issues short codes and accrues 5% of referee rewards, claimable on-chain.
Status
- 12 smart contracts, all verified on the OPN explorer
- 37 passing contract tests (Hardhat)
- Every feature tested end-to-end on OPN Testnet with real transactions
- Open source: https://github.com/vantung111/MemeDex-on-IOPN
Roadmap
02/03
What ships next.
The builder's own next-quarter plan. Use it to gauge follow-through and ambition.
Q3 2026 — Now (Testnet live)
- All 12 contracts deployed & verified on OPN Testnet
- Full dApp live: swap, stake, farm, launch, presale, airdrop, referral
- 37 passing tests; every feature tested end-to-end on-chain
Q4 2026 — TGE & Mainnet
- MEMEDEX TGE (Token Generation Event) on OPN Mainnet — 10M fixed supply
- Token distribution: 50% liquidity, 30% MasterChef rewards, 10% presale, 5% airdrop/trading rewards, 5% team & marketing
- Seed initial MEMEDEX/WOPN liquidity and lock LP
- Public MEMEDEX presale via PresaleFactory: 50% TGE unlock + 30-day linear vesting
- Open trading-rewards Season 1 (weekly top-20 airdrops)
Q1 2027 — Growth
- Onboard first community meme launches through the Launchpad
- Activate referral program (5% rewards) for user acquisition
- Add more farm pools and adjustable reward emissions
- Public analytics: TVL, volume, APY dashboards
Q2 2027 — Decentralization
- MEMEDEX governance (vote on emissions, fees, new pools)
- Move contract ownership to a timelock + multisig
- Third-party security audit ahead of scaling TVL
Beyond
- Cross-chain meme bridging
- Meme NFT marketplace
- Auto-compounding vaults
On-chain proof
03/03
9 contracts on OPN Chain.
The chain itself confirmed every deployment is valid, signed by the builder's wallet, and inside the season's window.