USDFC is about to be listed: Unlocking a new era of USD liquidity in the Filecoin ecosystem.

After two rounds of strict controlled testing, USDFC—the first stablecoin backed by native FIL—will officially open to the public this week. This article will guide you through:

• The evolution process from Alpha testing to Beta testing, and why its price pegging mechanism is so stable.
• The operating principle of USDFC (110% collateral ratio).
• The actual utility that you can use immediately.
• And how we will build next to make lending simpler.

From Alpha to Official Release

USDFC has been operating in a controlled environment for several weeks, with a 24/7 arbitrage bot responsible for maintaining price peg. After a comprehensive testing program, we are confident that this stablecoin is ready for public use.

• Alpha - March 2025
• External security audits and adversarial attack simulations.
• Swap pool deployment and intensive internal “dog-food” trading (internal testing).
• Listed on CoinGecko, DeFiLlama, GLIF Explorer, and other analytics dashboards.
• Beta - Since April 2025
• Bug Bounty Program: We received 36 reports from 19 white hat participants; no high-risk issues were found.
• Crypto Econ Lab (CEL) conducted comprehensive stress tests: including liquidation, redemption loops, and extreme scenarios.
• The price pegging monitoring robot operates in real-time, performing continuous adjustments.
• Key Beta metrics so far
• SushiSwap trading volume: over $100,000 per week
• Cumulative loan transaction volume: > 250,000 USD
• USDFC annual yield (APR): For iFIL / pFIL collateral, the yield is 8-10%, and its own staking yield is also close to that range.
• Official Release - At FIL Dev Summit 6

Due to price stability, the code has been tested in practice and already has actual liquidity. We are pleased to transition to a fully public version. Starting from the first block, every Filecoin wallet will be able to mint, exchange, lend, and bridge USDFC.

USDFC In short

1. Lock FIL in the Vault.
2. Mint USDFC with a collateral rate of up to 110%.
3. Redeem at any time by burning USDFC and extracting the same FIL.
4. If your collateralization ratio falls below 110%, the stable pool will repay the debt and liquidate the Vault—this process will now be quickly arbitraged by our bots.

Since users do not need to sell FIL to release liquidity, USDFC helps to mitigate the severe price fluctuations that still exist in the Filecoin market.

Current Uses of USDFC

• Swap ( transaction ): SushiSwap V3 is live, allowing exchanges of FIL/USDFC and USDFC/axlUSDC.
• Payment (: Lighthouse now accepts USD payments for long-term storage fees, achieving the first true dollar payment for Filecoin.
• Mint ↔ redeem ) mint/redeem (, no slippage: FIL holders can mint USDFC for operational expenses and later burn tokens to reclaim their original FIL—no OTC ), no price impact.
• Lend & borrow (借贷), using liquid staking FIL: iFIL and pFIL (≈ 10% staking yield) can both be used as collateral. Their yields effectively offset 8-10% of the borrowing costs, creating a balanced market where lenders can earn significantly higher USD annual yields than the DeFi average.
• Bridge and cross-chain Swap ( Cross-chain bridging and trading ): With Axelar + Squid Router, USDFC will be transferred to any EVM (Ethereum Virtual Machine) chain with one click, enabling additional yield strategies on DeFi platforms.

The Importance of High-Yield USD

The Filecoin ecosystem has long lacked seamless on-chain USD liquidity. USDFC fills this gap while providing attractive returns. By allowing users to borrow instead of selling, it helps stabilize prices; by offering double-digit USD yields that can be cross-chain in a single jump, it brings fresh capital into Filecoin – the fuel needed for the network’s continued growth.

Next Steps

• Q4 2025
• Launch a pool-based lending market next to the existing order book to provide passive users with one-click deposits.
• A specialized market-making treasury will provide additional liquidity for the two lending venues, narrowing the spread and optimizing the borrowing experience.

Join us

Whether you are a storage provider expanding hardware, a yield hunter seeking real annualized returns, or a cross-chain investor looking for the next compound cycle, USDFC has opened doors that previously did not exist. Early adopters will receive the richest incentives through the Secured Finance Points (SFP) program. Join us to forge the first block of high-yield USD on Filecoin.

About Secured Finance

Secured Finance is a leading DeFi protocol focused on fixed income lending and borrowing on the blockchain. It provides reliable, low-cost financial solutions through its FIL-supported stablecoin USDFC and on-chain order book system, dedicated to enhancing the Filecoin ecosystem.