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Season 1 · DeFi & Open Finance

OPNLend

OPNLend lets you borrow, without putting up collateral upfront, your wallet's history on OPN Chain becomes your credit score

Stage 1, ReviewDeFi & Open Finance+1 co-builder

by 0xsmokey0 · submitted Jun 21, 2026

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01/04

Confirmed co-builders.

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Description

02/04

What the builder said.

Written by the team, rendered as the markdown they typed in the submission wizard.

WHAT WE BUILT

OPNLend is a reputation-weighted lending protocol on OPN Chain. Instead of requiring borrowers to overcollateralize their loans like most DeFi lending markets, OPNLend lets your on-chain wallet history act as your credit score. Lenders supply IOPN to a shared pool and earn yield; borrowers deposit IOPN as collateral and unlock a borrowing limit that scales with their reputation tier.

WHY?

Most DeFi lending requires 150%+ collateralization, which locks out anyone without significant existing capital - defeating the purpose of "open finance." We wanted to test whether on-chain activity (transaction count, wallet age, repayment history) is a strong enough signal to safely extend better terms to trustworthy wallets, the same way traditional credit scores work off-chain, but fully transparent and verifiable on OPN Chain.

HOW IT WORKS

  • Connect your wallet - your on-chain history seeds your credit score automatically
  • Score ranges 0 - 1000 across four tiers: High Risk, Subprime, Neutral, and Prime
  • Your tier sets your borrow multiplier (0.5x - 1.5x) and APR adjustment (+8% to -2%)
  • Supply IOPN to the pool to earn yield from borrower interest
  • Deposit IOPN as collateral, then borrow up to your reputation-weighted limit
  • Repay on time to raise your score; default and risk liquidation, which lowers it
  • Anyone can liquidate an unhealthy position (health factor < 1) and earn an 8% bonus
  • A live leaderboard ranks all wallets by score, and an activity feed shows every protocol transaction in real time

Roadmap

03/04

What ships next.

The builder's own next-quarter plan. Use it to gauge follow-through and ambition.

Q2 · Now

  • Live on OPN Chain testnet - full lending, borrowing, and liquidation flow working end-to-end
  • Reputation scoring live, tracking tx count, wallet age, and repayment history
  • Gather testnet usage data and feedback to refine APR curves and tier thresholds

Q3

  • Replace the manual price oracle with a live on-chain feed
  • Add a transaction-history scoring mode that reads a wallet's full OPN Chain activity, not just OPNLend interactions
  • Open a public API so other OPN Chain testnet apps can query a wallet's reputation score
  • Security review of all five contracts ahead of mainnet readiness

Q4

  • Multi-asset collateral support beyond native IOPN
  • Delegated liquidations - a keeper bot network that auto-liquidates unhealthy positions
  • Cross-protocol reputation - let other OPN Chain apps plug into the same credit score
  • Mainnet deployment as soon as OPN Chain mainnet is live

Q1 2027

  • Governance module - high-reputation wallets vote on risk parameters
  • Undercollateralized lending for established Prime-tier wallets, beyond the current 75% collateral factor cap
  • Expand to additional collateral assets bridged to OPN Chain

On-chain proof

04/04

1 contract on OPN Chain.

The chain itself confirmed every deployment is valid, signed by the builder's wallet, and inside the season's window.

  • 01GreeterPrimary

    0xF85e84D6202b1F321C07de3A876A8699CaC7E7F7

    tx 0x70ba951248bb9106a9c7fd3a2eea8b793aad1ef98cb3b068f5ef3f7f0ad82db7

    deployed Jun 21, 2026 · block 18998343