Exactly Protocol
- Name: Exactly Protocol
- URL: https://exact.ly/
- Category: fixed-rate lending protocol / utilization-priced maturity-pool credit market / shared-liquidity fixed-income system
- Tags: ethereum-ecosystem
- Summary: Exactly Protocol is fixed-rate lending without maturity tokens as the main instrument. The useful mechanism is the shared-liquidity bridge: one floating-rate pool per asset temporarily funds multiple fixed-term pools, so rate discovery happens through maturity-pool utilization and governance-shaped curve parameters rather than through zero-coupon token pricing. Keep it as a fixed-rate credit design note, not as a PT/YT market or benchmark-publication venue.
- What it does:
- Lets users lend and borrow crypto assets at both variable and fixed rates inside one protocol
- Uses one Variable Rate Pool per asset to provide immediate liquidity to multiple Fixed Rate Pools with different maturities
- Prices fixed-rate loans from the utilization of each maturity pool rather than from maturity-token prices or a bespoke AMM for zero-coupon claims
- Issues ERC-4626
exaVoucherdeposit claims for variable-rate suppliers and allows those vouchers to be used as collateral - Uses dynamic close-factor liquidation logic, liquidity reserves, and risk-adjust factors to manage solvency and withdrawals
- Key claims:
- The official site describes Exactly as a decentralized, non-custodial, open-source protocol providing an autonomous fixed- and variable-rate interest market.
- The white paper says the protocol discovers fixed rates directly from the supply and demand of credit in each Fixed Rate Pool for each asset and maturity term.
- The important architectural move is the Variable Rate Pool. The math paper says it exists to satisfy fixed-rate demand immediately until matching fixed-term deposits arrive, so the protocol is trying to warehouse liquidity fragmentation instead of embracing dated token markets.
- The white and math papers explicitly contrast Exactly with Notional-, Yield-, Element-, and Pendle-like maturity-token systems, arguing those designs fragment liquidity and make fixed-rate discovery depend indirectly on token slippage or special-purpose AMMs.
- That is the useful branch distinction: Exactly prices term credit through utilization curves attached to maturity pools, not through discounted repayment tokens trading toward par.
- The papers model fixed-rate borrowing with continuous utilization-based rate functions and describe normal, leveraged, and unreachable regimes, which makes curve-shape calibration a central governance lever rather than a background implementation detail.
- The docs say the
TimelockControlleris the administrator, with a 24-hour timelock and a 3-of-6 multisig executor; the Protocol Owner multisig controls upgrades, parameter changes, and pause powers. - The docs and query interface say a Risk Management Committee multisig can update listed assets, rate models, risk-adjust factors, liquidator incentives, and liquidity reserves, while Hypernative can trigger emergency pauses but not unpause the protocol.
Internal linkages
- Best maturity-token contrast: yield-protocol.
- Best periodic term-credit contrast: notional.
Control surface
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Practical authority sits in utilization-curve calibration, reserve policy, asset listing, risk-adjust factors, liquidation incentives, and the multisigs that can still tune or pause the system.
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So Exactly is not some neutral escape from fixed-income politics. It just moves the argument from token design and AMM pricing into curve management and risk-committee policy.
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Whitepaper: Exactly maintains official white and math papers in its docs rather than a standalone PDF surfaced in this pass. The strongest current source snapshot is
../whitepapers/exactly-protocol-primary-sources-2026-05-08.md. -
Sources:
- https://exact.ly/
- https://docs.exact.ly/
- https://docs.exact.ly/resources/white-paper
- https://docs.exact.ly/resources/math-paper
- https://docs.exact.ly/security/access-control.md
- https://docs.exact.ly/security/hypernative.md
- https://docs.exact.ly/resources/math-paper.md?ask=How%20does%20Exactly%20use%20the%20Variable%20Rate%20Pool%20to%20support%20Fixed%20Rate%20Pools%2C%20and%20what%20problem%20is%20this%20meant%20to%20solve%3F
- https://docs.exact.ly/resources/white-paper.md?ask=What%20governance%20or%20admin%20control%20surfaces%20does%20Exactly%20Protocol%20describe%20for%20risk%20management%2C%20parameter%20updates%2C%20or%20pause%20authority%3F
- https://docs.exact.ly/getting-started/faq.md?ask=How%20does%20Exactly%20describe%20its%20difference%20from%20other%20fixed-rate%20protocols%20like%20Notional%20or%20maturity-token-based%20systems%3F
- https://github.com/exactly/protocol
- https://raw.githubusercontent.com/exactly/protocol/main/README.md
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Last reviewed: 2026-06-07 UTC