Deployment

Mainnet contract addresses, market configurations, oracle pipelines, router facets, and key roles for the Fira Protocol deployment.

Network: Ethereum Mainnet Initial Deployment: March 13–15, 2026 Bond Token Expiries: May 7, 2026 · May 27, 2026


External tokens

Fira tokens

May 27, 2026 Expiry

BT and CT are minted/burned in pairs via the YieldContractFactory. Multiple expiry series can coexist.

Core protocol contracts

Contract
Address
Description

FiraRouterV4

Main entry point for all user operations

USDCFW (FW)

Wrapped Standardized Yield token for USDC

SisuVault

ERC-4626 vault aggregating yield across markets

LiquidityInjector

Sole BT supplier to fixed-rate markets

RehypothecationModule

Controls phi ratios for rebalancing

YieldContractFactory

Deploys BT/CT pairs

AdaptiveCurveIrm

Interest rate model for variable-rate markets

Lending markets

Contract
Address
Description

VariableLendingMarket

Variable-rate lending (wstETH, cbBTC collateral)

FiraLendingMarket

Fixed-rate lending (PT collateral, BT loan token)

AMM markets

FiraMarket — May 7, 2026

Field
Value

Expiry

May 7, 2026 (1778112000)

scalarRoot

102406700000000000000

initialAnchor

1008276800000000000

lnFeeRateRoot

2996000000000000

FiraMarket — May 27, 2026

Variable-rate markets

wstETH / USDC

Field
Value

Market ID

0xB3152AC00687CC9502B78AB452956F85CC89AC210DEEFDA5DBFF09F7F167B544

LTV

87%

LLTV

89%

Whitelist

None (permissionless)

cbBTC / USDC

Field
Value

Market ID

0x39D3BDD30BF4BCF4A4D3547F2484ABE1E30A2DCD41ED83788B40E2720357AB76

LTV

88%

LLTV

90%

Whitelist

None (permissionless)

Fixed-rate markets

All fixed-rate markets use the FiraLendingMarket at 0x280ddD897F39C33fEf1CbF863B386Cb9a8e53a0earrow-up-right. BT is the loan token. Only the LiquidityInjector can supply BT (whitelist-gated).

PT-USDG / BT (May 27 Expiry)

Field
Value

IRM

0x0000000000000000000000000000000000000000 (none — fixed rate)

LTV

94%

LLTV

94.75%

Maturity Grace Period

86400 (24h)

Liquidation Incentive

1%

PT-USDe / BT

Field
Value

IRM

0x0000000000000000000000000000000000000000 (none — fixed rate)

LTV

89%

LLTV

90%

Maturity Grace Period

86400 (24h)

Liquidation Incentive

3.1%

BT Liquidity

350 BT supplied by LI

PT-sUSDe / BT

Field
Value

IRM

0x0000000000000000000000000000000000000000 (none — fixed rate)

LTV

89%

LLTV

90%

Maturity Grace Period

86400 (24h)

Liquidation Incentive

3.1%

BT Liquidity

350 BT supplied by LI

Oracle pipeline

Variable-rate oracles

Market
Oracle
Type

wstETH/USDC

Morpho v1 oracle (pre-deployed, reused)

cbBTC/USDC

ChainlinkOracleV2 (BTC/USD + USDC/USD feeds)

Fixed-rate oracle pipeline (May 7 Expiry)

PT-USDe and PT-sUSDe markets use a 3-layer oracle stack:

Fixed-rate oracle pipeline (May 27 Expiry — PT-USDG)

The PT-USDG market uses a MetaOracleDeviationTimelock with primary/backup oracle redundancy:

Layer
Address
Description

MetaOracleDeviationTimelock

Deviation threshold: 0.5%

Primary Oracle

1:1 USDG peg + Pendle TWAP

Backup Oracle

Chainlink USDG/USD + Pendle TWAP

FiraSolvencyOracle

Final solvency check

Router facets

The FiraRouterV4 uses a facet-based (diamond-like) architecture. All user-facing calls go through the Router, which delegates to the appropriate facet.

Factory contracts

Key roles

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