Registry - Tplus Docs

The Registry is the onchain source of listed assets, per-asset risk parameters, withdrawal-delay parameters, and the protocol fee account. The clearing engine and OMS mirror it; clients read it through OMS endpoints rather than calling onchain.

Data	Endpoint
Listed assets and deposit caps	`GET /registry/assets`
Risk parameters	`GET /registry/risk-parameters`
Token decimals	`POST /registry/decimals`
Vault addresses	`GET /registry/vaults`

Assets

struct ChainId {
    uint64 routingId;   // 0 = EVM
    uint64 vmId;        // chain id, e.g. 42161 for Arbitrum
}

struct AssetData {
    uint16  index;
    bytes32 assetAddress;
    ChainId chainId;
    uint256 maxDeposits;     // total deposit cap for this (asset, chain)
    uint256 max1hrDeposits;  // rolling 1-hour deposit cap
    uint256 minWeight;
}

function getAssets(uint16 start, uint16 end) external view returns (AssetData[] memory);

The same index can span multiple chains; deposit caps determine whether a deposit credits a fungible asset or an isolated, chain-specific one. Fungibility and caps: Deposits.

Risk parameters

struct RiskParameters {
    uint8   collateralFactor;
    uint8   liabilityFactor;
    uint256 maxCollateral;
    uint256 maxOpenInterest;
    uint256 maxSpotOpenInterest;
    uint256 maxUtilization;
    bool    isolatedOnly;
    uint256[] interestKinks;
    uint256[] kinkInterestRates;
    uint256[] usdInterestKinks;
    uint256[] usdKinkInterestRates;
    uint256 skewModifier;
    uint256 skewCliff;
    int256  baseFundingRate;
    uint256 premiumClamp;
    uint256[] initialMarginClamps;
    uint256[] initialMarginFactors;
    uint256 maxFundingRate;
    uint256 maxUtilizationRate;
    uint256 bufferMultiple;
}

function getRiskParameters(uint16 start, uint16 end) external view returns (RiskParameters[] memory);

Field group	Controls
`collateralFactor`, `liabilityFactor`	Margin weights on collateral and liabilities
`maxCollateral`, `maxOpenInterest`, `maxSpotOpenInterest`, `maxUtilization`	Position and utilization caps
`initialMarginClamps`, `initialMarginFactors`	Tiered initial-margin schedule
`baseFundingRate`, `maxFundingRate`, `skewModifier`, `skewCliff`, `premiumClamp`	Funding-rate curve
`interestKinks`, `kinkInterestRates`, `usdInterestKinks`, `usdKinkInterestRates`	Borrow-rate curves
`bufferMultiple`, `isolatedOnly`	Auto-reduce buffer and isolated-only restriction

How these are applied: Margin and Fees & rates.

Withdrawal delays

struct WithdrawalDelayParameters {
    uint256 minDelay;
    uint256 maxDelay;
    uint256[] delayClamps;
    uint256[] delayValues;
}

function getWithdrawalDelayParameters()
    external view returns (WithdrawalDelayParameters memory);

The withdrawal queue derives each delay from these bounds; see Withdrawals.

Fee account

function feeAccount() external view returns (bytes32);

Updates to assets, risk parameters, and delays are governance-gated and timelocked. See Credential Manager and the trust model.