Lending API

Endpoints for lending, borrowing, and managing DeFi lending positions.

Supported protocols

EVM: aave, compound, euler, morpho, venus (multi-chain). Solana: kamino (chain ID 999). For Solana, pass protocol: "kamino", chainId: 999, SPL mint addresses, and a base58 wallet address. Solana lending endpoints return a base64-encoded transaction to sign.

Supply & Withdraw

Supply Assets

POST /lending/supply

Deposit assets into a lending protocol to earn interest.

Request Body:

Field	Type	Required	Description
chainId	number	Yes	Chain ID (use 999 for Solana)
protocol	string	Yes	Lending protocol (aave, compound, euler, morpho, venus, kamino)
tokenAddress	string	Yes	Token to supply (EVM address or SPL mint)
amount	string	Yes	Amount to supply
walletAddress	string	Yes	User wallet address (EVM or Solana)

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Withdraw Assets

POST /lending/withdraw

Withdraw supplied assets from a lending protocol.

Request Body:

Field	Type	Required	Description
chainId	number	Yes	Chain ID
protocol	string	Yes	Lending protocol
tokenAddress	string	Yes	Token to withdraw
amount	string	Yes	Amount to withdraw
walletAddress	string	Yes	User wallet address

Borrowing

Borrow Assets

POST /lending/borrow

Borrow assets against supplied collateral.

Request Body:

Field	Type	Required	Description
chainId	number	Yes	Chain ID
protocol	string	Yes	Lending protocol
tokenAddress	string	Yes	Token to borrow
amount	string	Yes	Amount to borrow
walletAddress	string	Yes	User wallet address

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Repay Loan

POST /lending/repay

Repay borrowed assets.

Request Body:

Field	Type	Required	Description
chainId	number	Yes	Chain ID
protocol	string	Yes	Lending protocol
tokenAddress	string	Yes	Token to repay
amount	string	Yes	Amount to repay
walletAddress	string	Yes	User wallet address

Position Management

Get User Positions

GET /lending/getUserPositions

Retrieve all lending positions for a user.

Query Parameters:

Parameter	Type	Required	Description
walletAddress	string	Yes	User wallet address
chainId	number	Yes	Chain ID
protocol	string	No	Filter by protocol

Response:

{
  "positions": [
    {
      "protocol": "aave",
      "tokenAddress": "0x...",
      "symbol": "USDC",
      "balance": "1000.00",
      "assetsUsd": "1000.00",
      "APY": "4.52",
      "isCollateral": true,
      "collateralFactor": "0.80"
    }
  ]
}

---

Get Reserve List

GET /lending/getReserveList

Retrieve available lending reserves and their current rates.

Query Parameters:

Parameter	Type	Required	Description
chainId	number	Yes	Chain ID
protocol	string	Yes	Lending protocol

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Set Collateral

POST /lending/setReserveAsCollateral

Enable or disable an asset as collateral.

Request Body:

Field	Type	Required	Description
chainId	number	Yes	Chain ID
protocol	string	Yes	Lending protocol
tokenAddress	string	Yes	Token address
useAsCollateral	boolean	Yes	Enable/disable collateral

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Get Borrowable Assets

GET /lending/getBorrowableAssets

Get a list of assets available for borrowing.

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Get Max Borrow Amount

GET /lending/getMaxBorrowAmount

Calculate the maximum amount a user can borrow based on their collateral.

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Refresh User Positions

GET /lending/refreshUserPositions

Force a refresh and sync of user lending positions from on-chain data.

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Get Market List

GET /lending/getMarketList

Retrieve available lending markets for a protocol/chain with supply and borrow rates (supports pagination).

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Get Lending List Bundle

GET /lending/getLendingListBundle

Fetch reserves, user positions, borrowable assets, and borrowed assets in a single call. (Long-running; allow up to ~60s.)

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Get Borrowed Assets List

GET /lending/getBorrowedAssetsList

Retrieve the user's current borrowed positions.

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Sync Reserves

POST /lending/syncReserves

Sync all reserves for a user.

Protocol-Specific Endpoints

Method	Path	Purpose
GET	/lending/morpho/marketList	Morpho market list
GET	/lending/morpho/checkLtv	Check loan-to-value for a Morpho market
GET	/lending/morpho/isAuthorised	Check Morpho authorization status
POST	/lending/morpho/setAuthorisation	Set Morpho authorization
GET	/lending/euler/checkLtv	Check loan-to-value for an Euler vault
GET	/lending/getCollateralTokens	Collateral tokens (Compound V3)
GET	/lending/exitMarket	Exit a market (Venus)
GET	/lending/getAggregatedLendingData	Aggregated lending data across protocols for a token