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Cap: An Overview

Cap is a stablecoin protocol that offers two products: cUSD, a dollar-backed stablecoin, and stcUSD, which generates yield. The protocol functions as a decentralized marketplace utilizing smart contracts and financial incentives to coordinate lending, collateral oversight, and yield creation.

Research DeskApr 23, 2026Reviewed by our editorial team

Quick answer

Cap is a stablecoin protocol that offers two products: cUSD, a dollar-backed stablecoin, and stcUSD, which generates yield. The protocol functions as a decentralized marketplace utilizing smart contracts and financial incentives to coordinate lending, collateral oversight, and yield creation.

Cap functions as a stablecoin protocol built to deliver confirmed financial safeguards via its primary offerings: cUSD, which maintains a dollar peg, and stcUSD, which delivers yield returns. The protocol operates as a decentralized platform that brings together lending coordination, collateral administration, and yield production through automation via smart contracts paired with economic reward mechanisms across participant categories.

Overview

Cap operates as a stablecoin protocol functioning as a decentralized marketplace with three primary participant categories: cUSD holders, stcUSD holders, and Operators. The protocol issues two main offerings: cUSD, which maintains a one-to-one dollar peg and receives backing from a reserve of regulated, attested stablecoins including USDC, USDT, pyUSD, BUIDL, and BENJI; and stcUSD, which generates returns on top of cUSD. Institutional operators within the network borrow from the protocol to conduct investment strategies, with the entire system structured to operate mechanically through smart contracts and built-in economic incentives.

The system's autonomous functioning is governed by six primary smart contract components:

These components coordinate the interaction of lending, collateral administration, and yield creation, while integrating inherent protections and confirmable assurances for participants.

  • Vault: Maintains reserve assets, generates cUSD tokens, and furnishes funding to the Lender component.
  • Lender: Oversees borrowing procedures, loan repayment, position liquidation, and interest rate determination.
  • Fee Auction: Transforms protocol earnings and fees into cUSD by utilizing a descending-price auction format.
  • Delegation: Connects to shared security frameworks to oversee delegated assets, compensation distribution, and penalty mechanisms.
  • Oracles: Incorporates price information systems for asset pricing and rate information systems for interest calculations.
  • Access Controls: Enforces detailed, operation-specific authorization regulations across the complete protocol framework.

Features

Type III Stablecoin Model

Type III stablecoins function in a self-executing manner, leveraging smart contracts to establish regulations, distribute resources, and govern exposure. In distinction to systems depending on human management or institutional structures, Type III arrangements encode protections and confirmations into the system's code itself, permitting stakeholders to independently validate guarantees. These stablecoins pursue enhanced reliability and faster modification in response to market fluctuations by facilitating automated engagement in competitive markets, where several wealth-building approaches operate concurrently. Cap provides the inaugural deployment of this methodology, combining smart contract administration with delegated security frameworks to regulate outside operator engagement and validate efficient resource utilization.

Protocol Members

Cap includes multiple participant classifications managed through transparent blockchain rules. cUSD holders add reserve assets to generate cUSD, retaining the ability to exchange cUSD for its equivalent worth anytime. Participants who lock cUSD obtain stcUSD in exchange, which builds value through auto-generating returns coming from operators executing wealth strategies. Operators have the ability to draw on reserve funds exclusively when they maintain delegations originating from security providers, who assume responsibility for downside exposure.

Security providers commit frozen assets to designated operators using competitive security frameworks and earn payment in fees. Should an operator become insufficiently secured, auction managers initiate descending-price sales to retrieve funds, gaining compensation for finishing auctions ahead of schedule.

cUSD and stcUSD

cUSD operates as a dollar-pegged stablecoin supported by a stock of eligible backing assets. Three primary operations provide access to cUSD: generation (accomplished by putting in backing assets at price feed rates), destruction (to exchange at best price accuracy), and conversion (distributed over multiple assets to preserve price stability). During the launch phase, certain functions, including modifiable rates and varied backing redemption, remain deactivated, and generation and destruction fees maintain a uniform 0.25% to minimize pricing risks. When prices become outdated, generation and destruction momentarily stop.

Capital not being borrowed gets deposited into a Partial Reserve system, where it can produce steady returns through inherent incentives or by allocation to integrated borrowing frameworks like Aave and Morpho. Every backing asset generates returns inside ERC-4626 systems, with asset distribution happening mechanistically pursuant to existing profit allocation arrangements and prevailing compensation levels.

stcUSD represents a return-generating stablecoin relying on a marketplace lending architecture. Market participants produce cUSD by supplying eligible assets then delegate it for stcUSD, which accumulates returns. Return sources comprise two pathways: compensation on untapped assets and disbursements to operators executing yield approaches.

Operators require substantial delegations from security providers to gain lending authorization. When an operator's standing metric falls under 1, auction managers can decrease a security provider's backing to cover shortfalls and safeguard stcUSD participants. Security providers assess operator standing and may arrange conditions, such as lending timeframes and compensation rates. When tactics execute favorably, all participants obtain distributed value, and untapped funds are mechanically placed into partner frameworks such as Aave or Morpho contingent on present earnings.

Partnerships

  • Triton Capital
  • IMC
  • Flow Traders
  • SCB Limited
  • Laser Digital
  • GSR
  • Franklin Templeton
  • Symbiotic
  • EigenLayer
  • SatLayer

Funding

Cap successfully obtained $11 million in funding through a round announced on April 7, 2025. Blockchain Capital spearheaded the investment, alongside involvement from prominent financial backers such as a16z crypto, Dragonfly, and Lightspeed Faction. The investment capital supports advancement work on Cap's stablecoin framework.

FAQ

Frequently Asked Questions

What is Cap?

Cap is a stablecoin protocol that offers two products: cUSD, a dollar-backed stablecoin, and stcUSD, which generates yield. The protocol functions as a decentralized marketplace utilizing smart contracts and financial incentives to coordinate lending, collateral oversight, and yield creation.

How does Cap maintain its peg?

Cap maintains its dollar peg through over-collateralised crypto assets or fiat reserves. The specific mechanism — whether over-collateralisation, algorithmic rebasing, or fiat-backed reserves — determines its stability profile, capital efficiency, and risk characteristics. Full details are available in the protocol's documentation.

Is Cap backed 1:1 with US dollars?

That depends on the type of stablecoin. Fiat-backed stablecoins hold cash or cash-equivalent reserves at a 1:1 ratio. Crypto-backed stablecoins like DAI are over-collateralised and hold more collateral than the stablecoins issued. Algorithmic stablecoins may not hold 1:1 reserves at all times. Check Cap's official documentation for the exact backing structure.

What collateral backs Cap?

Cap's collateral composition is defined in its smart contract parameters and may include cryptocurrencies, tokenised real-world assets, or fiat-equivalent deposits. The current collateral breakdown is typically published in real time via the protocol's dashboard or on-chain analytics tools such as DeFiLlama.

Is Cap safe?

No stablecoin is entirely risk-free. Cap carries risks specific to its peg mechanism, including collateral volatility, oracle failure, smart contract vulnerabilities, and regulatory action against its issuer or backing assets. Reviewing audit reports and understanding the peg mechanism is essential before holding significant amounts.

What are the risks of holding Cap?

Risks include de-pegging events (where the stablecoin trades above or below $1), smart contract exploits, collateral liquidations, issuer insolvency (for fiat-backed variants), and regulatory restrictions. Historical de-peg events in the stablecoin market — including the collapse of TerraUSD in 2022 — underscore the importance of understanding each stablecoin's mechanism before committing capital.

Where can I buy or obtain Cap?

Cap can typically be acquired on decentralised exchanges (such as Uniswap or Curve Finance) or centralised exchanges. Some stablecoins can also be minted directly through the issuing protocol by depositing the required collateral. Check CoinMarketCap or CoinGecko for a list of exchanges listing Cap.

How can I earn yield on Cap?

Cap can be deposited into lending protocols such as Aave or Compound, supplied to DEX liquidity pools on Uniswap or Curve, or staked in the issuing protocol for protocol rewards. Yield rates fluctuate based on supply and demand. Always compare rates on aggregators like DeFiLlama's yield tracker before committing funds.

Who created Cap?

Cap was created by a team of blockchain developers or a decentralised protocol. Some stablecoins are issued by regulated companies (Circle issues USDC; Tether issues USDT), while others such as DAI are governed by a decentralised autonomous organisation (MakerDAO). Check the official Cap website for publisher information.

How does Cap compare to USDT and USDC?

USDT (Tether) and USDC (Circle) are the two largest stablecoins by market capitalisation and are both fiat-backed. Cap may differ in its collateral type, decentralisation level, transparency, supported chains, and regulatory status. Decentralised stablecoins like DAI or USDe offer censorship resistance that fiat-backed alternatives cannot provide, at the cost of greater complexity and different risk exposures.

StablecoinDeFiYieldUSD-Pegged

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