RoomFi is the first Native Yield RWA Protocol on Mantle that unlocks the dormant capital of rental deposits.
(All documents for submission are inside the Readme, in the widgets section at the top)
RoomFi turns "dead capital" from rental security deposits into yield-bearing assets. By combining Ricardian Contracts (legal compliance) with Mantle's DeFi ecosystem (USDY/Lendle), we allow tenants to earn APY on their deposits and landlords to liquidate future rent streams. Everything is powered by a portable, on-chain identity (SBT) that bridges the trust gap in the $280B rental market.
The Problem: The $280 Billion "Dead Capital" Trap In Latin America and emerging markets, renting massive bureaucracy and financial inefficiency. Tenants are forced to lock up 1-3 months of rent in security deposits that sit idle in bank accounts, losing value to inflation every day. This creates over $50 Billion in dormant liquidity in LATAM alone. Additionally, good tenants lose their reputation every time they move, forcing them to start from zero with every new landlord.
RoomFi (Native Yield RWA Protocol) RoomFi reinvents the rental agreement by treating it as a financial asset rather than just a legal obligation. We built a protocol on Mantle Network that transforms these idle security deposits into productive, yield-generating Real World Assets (RWA).
How It Works:
Zero-Cost Deposits via DeFi Yield: Instead of paying a "sunk cost" deposit, the tenant stakes USD stablecoins into the RoomFi Vault. This capital is routed to low-risk yield strategies (like Ondo's USDY or Lendle) on Mantle.
The yield generated can offset the cost of rent or grow the tenant's savings. The deposit works for you.
Portable Reputation (Tenant Passport): We calculate an on-chain credit score based on rent payment history. This Soul-Bound Token (SBT) allows good tenants to prove their reliability instantly to any landlord, reducing future deposit requirements.
Rent Factoring for Landlords: Landlords receive a Rental Agreement NFT representing the right to future cash flows. Through our protocol, they can liquidate this NFT to get instant liquidity (e.g., getting 6 months of rent upfront) without waiting for monthly payments.
Hybrid Legal Framework: We don't just use smart contracts; we use Ricardian Contracts. Every NFT is cryptographically linked to a legally binding document (consistent with frameworks like NOM-151), ensuring that the on-chain asset is enforceable in the real world.
RoomFi relies on high-frequency recurring payments (monthly rent) and continuous yield compounding. Mantle's low gas fees make these micro-transactions viable, while its robust DeFi ecosystem provides the native yield engines required to make the "Dead Capital" productive.
Architecture: Hybrid RWA model connecting Verified Legal Docs (NOM-151) with On-Chain execution.
Tech Stack:
Mantle Sepolia: Core settlement layer for low-fee recurring payments.
Foundry: Professional smart contract development framework.
OpenZeppelin: Standard secure implementation for ERC721/ERC20.
Key Contracts:
PropertyRegistry: Oracle-based property verification.
RoomFiVault: Yield aggregator routing deposits to USDY or Lendle.
TenantPassport: Soul-Bound Token (SBT) for reputation.