Introduction to Union Finance: Revolutionizing the DeFi Lending Model

In the decentralized finance (DeFi) space, collateralized lending is the mainstream model, but it typically requires borrowers to provide overcollateralization, which limits participation for many users who lack substantial on-chain assets.Union Finance is a DeFi protocol designed to address this pain point. It is dedicated to building a credit-based lending network on the Ethereum (Ethereum) that requires no collateral or only a small amount of collateral.

Union Finance:以太坊上的去中心化无抵押信用借贷协议

Union Finance’s core vision is to break the “the rich get richer” cycle in traditional DeFi. By establishing a more inclusive, positive-sum credit economy, it enables more individuals, communities, and developers to conveniently access on-chain funds, thereby driving the healthy development of the DeFi ecosystem.

Pain Points in DeFi Lending and Union Finance’s Vision

The current DeFi lending market generally relies on overcollateralization, meaning borrowers must lock up crypto assets worth more than the amount they borrow. While this mechanism reduces risk for lenders, it also leads to capital inefficiency and underutilization of funds, resulting in DeFi lending primarily serving users who already hold substantial crypto assets.

Union Finance:以太坊上的去中心化无抵押信用借贷协议

Union Finance was created precisely to challenge this status quo. It aims to build a global, permissionless on-chain credit network that allows any individual or smart contract with access to Ethereum to accumulate credit.In this way, Union Finance hopes to transform DeFi from a “zero-sum game” primarily used for speculation and asset appreciation into a “positive-sum game” capable of providing native financial support to the real economy and innovative projects.

Union Finance’s Core Mechanisms: The Trust Network and Vouching

The key to Union Finance’s ability to facilitate uncollateralized lending lies in its unique “Trust Network” and “Vouching” mechanisms. Rather than directly assessing a borrower’s traditional credit score or identity information, the protocol provides a transparent framework that allows one or more addresses to “vouch” for another address.

Union Finance:以太坊上的去中心化无抵押信用借贷协议

  • Vouching: Users can stake stablecoins (such as DAI) to vouch for another wallet address they trust. The more stablecoins staked, the higher the vouching limit the user can provide.
  • Credit Accumulation: The vouched address thereby gains a certain credit limit and can borrow funds without providing its own collateral. This mechanism forms a “trust network” that measures and distributes credit risk through mutual vouching among community members.
  • Risk Management: The Union Finance protocol itself remains neutral and does not directly assume risk; instead, it provides mechanisms for participants to manage risk on their own. Vouchers express their trust in borrowers by staking assets and assume the corresponding risk.

The UNN Token and Its Role in the Ecosystem

UNN is the governance token of the Union Finance protocol and plays multiple key roles within the ecosystem:

  • Governance Rights: UNN token holders can participate in the protocol’s decision-making process by voting on important governance proposals—such as adjusting risk parameters, resolving disputes, or modifying incentive programs—thereby influencing the protocol’s future direction.
  • Multi-Token Model: Union Finance employs a multi-tiered token model to manage the multi-layered risks inherent in DeFi. In addition to UNN, which serves as the governance token, there are uUNN—used to protect strategies—and pUNN—used to protect pools—each of which plays a specific role in risk management and liquidity markets.
  • ERC-20 Standard: The UNN token is an ERC-20 standard token based on Ethereum, with an initial total supply of 1 billion tokens.

It is important to note that there are multiple tokens named “Union” or “U” in the cryptocurrency market, and they may belong to different projects.This article focuses primarily on the UNN token associated with the Union Finance decentralized lending/protection protocol. As of June 2024, real-time market data for UNN—including price and trading volume—can be found on financial information platforms such as Svmuu; however, please note that this data fluctuates in real time with market conditions and is provided for reference only.

Union Finance:以太坊上的去中心化无抵押信用借贷协议

Based on Ethereum and Multi-Chain Deployment

Union Finance was initially launched on the Ethereum network, leveraging the powerful capabilities and security of Ethereum smart contracts to build its decentralized credit protocol. As the DeFi ecosystem has evolved, Union Finance has expanded to other EVM (Ethereum) compatible blockchain networks, such as Base and Optimism, to offer lower transaction costs and faster processing speeds while maintaining interoperability with the Ethereum ecosystem.

Development and Challenges

As a relatively new DeFi protocol, Union Finance faced several challenges during its early development stages. For example, in early 2022, its lending limits were relatively small (e.g., a minimum of 100 DAI and a maximum of 5,000 DAI), and its user interface still had room for improvement. However, Union Finance is viewed as a “primitive,” meaning it is not a final product but rather lays the foundation for developers to build more traditional credit products—such as credit unions, credit lines, and installment loans—on top of it. As the “trust network” continues to expand and user adoption grows, Union Finance is poised to open a new chapter in unsecured lending within the DeFi space.

Union Finance:以太坊上的去中心化无抵押信用借贷协议