> ## Documentation Index > Fetch the complete documentation index at: https://docs.compasslabs.ai/llms.txt > Use this file to discover all available pages before exploring further. # AAVE Leverage Long/Short > Execute an Aave looping strategy that involves repeated supply and borrow operations. This endpoint creates a multicall transaction that performs a series of operations: 1. Approves and supplies initial token 2. For each loop: - Borrows another token - Swaps borrowed token back to supply token - Supplies the swapped tokens The transaction must be authorized using the /authorization endpoint to prevent replay attacks. ## OpenAPI ````yaml /v1/combined_spec.json post /v1/transaction_bundler/aave/loop openapi: 3.1.0 info: title: Compass API description: Compass Labs DeFi API version: 0.0.1 servers: - url: https://api.compasslabs.ai description: Production server security: - ApiKeyAuth: [] paths: /v1/transaction_bundler/aave/loop: post: tags: - Transaction Bundler summary: AAVE Leverage Long/Short description: >- Execute an Aave looping strategy that involves repeated supply and borrow operations. This endpoint creates a multicall transaction that performs a series of operations: 1. Approves and supplies initial token 2. For each loop: - Borrows another token - Swaps borrowed token back to supply token - Supplies the swapped tokens The transaction must be authorized using the /authorization endpoint to prevent replay attacks. operationId: v1_transaction_bundler_aave_loop requestBody: content: application/json: schema: $ref: '#/components/schemas/AaveLoopRequest' required: true responses: '200': description: Successful Response content: application/json: schema: anyOf: - $ref: '#/components/schemas/BundlerTransactionResponse' - $ref: '#/components/schemas/SafeTransactionResponse' title: Response V1 Transaction Bundler Aave Loop '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' x-codeSamples: - lang: python label: Python (SDK) source: |- from compass_api_sdk import CompassAPI, models with CompassAPI( api_key_auth="", ) as compass_api: res = compass_api.transaction_bundler.transaction_bundler_aave_loop(chain=models.AaveLoopRequestChain.ARBITRUM, sender="0x29F20a192328eF1aD35e1564aBFf4Be9C5ce5f7B", collateral_token="USDC", borrow_token="WETH", initial_collateral_amount="1000", multiplier="2.5", max_slippage_percent="0.5", loan_to_value="60", estimate_gas=True, signed_authorization={ "nonce": 1000, "address": "0xcA11bde05977b3631167028862bE2a173976CA11", "chain_id": 42161, "r": "0x5f9f3f3226ac91bc01a72dd117141f6c6de1ed30d3af9f95c3423316dc21d615", "s": "0x78f7982ede9dabc53d7153974c5692fda8a21fc73bdafc42aaf135505e22817c", "y_parity": 0, }, is_account_abstraction=False) # Handle response print(res) - lang: typescript label: Typescript (SDK) source: |- import { CompassApiSDK } from "@compass-labs/api-sdk"; const compassApiSDK = new CompassApiSDK({ apiKeyAuth: "", }); async function run() { const result = await compassApiSDK.transactionBundler.transactionBundlerAaveLoop({ chain: "arbitrum", sender: "0x29F20a192328eF1aD35e1564aBFf4Be9C5ce5f7B", estimateGas: true, signedAuthorization: { nonce: 1000, address: "0xcA11bde05977b3631167028862bE2a173976CA11", chainId: 42161, r: "0x5f9f3f3226ac91bc01a72dd117141f6c6de1ed30d3af9f95c3423316dc21d615", s: "0x78f7982ede9dabc53d7153974c5692fda8a21fc73bdafc42aaf135505e22817c", yParity: 0, }, collateralToken: "USDC", borrowToken: "WETH", initialCollateralAmount: "1000", multiplier: "2.5", maxSlippagePercent: "0.5", loanToValue: "60", isAccountAbstraction: false, }); console.log(result); } run(); components: schemas: AaveLoopRequest: properties: chain: type: string enum: - arbitrum - base - ethereum title: Chain default: arbitrum examples: - arbitrum sender: type: string title: Sender description: The address of the transaction sender. examples: - '0x29F20a192328eF1aD35e1564aBFf4Be9C5ce5f7B' default: '0x29F20a192328eF1aD35e1564aBFf4Be9C5ce5f7B' estimate_gas: type: boolean title: Estimate Gas description: >- Determines whether to estimate gas costs for transactions, also verifying that the transaction can be successfully executed. default: true examples: - true signed_authorization: anyOf: - $ref: '#/components/schemas/SignedAuthorization' - type: 'null' description: >- EIP-7702 authorization. Required when `is_account_abstraction` is False. examples: - address: '0xcA11bde05977b3631167028862bE2a173976CA11' chainId: 42161 nonce: 1000 r: >- 0x5f9f3f3226ac91bc01a72dd117141f6c6de1ed30d3af9f95c3423316dc21d615 s: >- 0x78f7982ede9dabc53d7153974c5692fda8a21fc73bdafc42aaf135505e22817c yParity: 0 default: address: '0xcA11bde05977b3631167028862bE2a173976CA11' chainId: 42161 nonce: 1000 r: '0x5f9f3f3226ac91bc01a72dd117141f6c6de1ed30d3af9f95c3423316dc21d615' s: '0x78f7982ede9dabc53d7153974c5692fda8a21fc73bdafc42aaf135505e22817c' yParity: 0 collateral_token: type: string title: Token description: Symbol or address of token to supply to Aave.. examples: - USDC - WETH default: USDC borrow_token: type: string title: Token description: Symbol or address of token to borrow from Aave.. examples: - WETH - USDC default: WETH initial_collateral_amount: anyOf: - type: number exclusiveMinimum: 0 - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Initial Collateral Amount description: Amount of collateral token to supply to Aave examples: - '1000' - '1000000' default: '1000' multiplier: anyOf: - type: number exclusiveMinimum: 1 - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Multiplier description: >- Leverage multiplier. Total loop collateral will be calculated as `multiplier` x `initial_collateral_amount` examples: - '2.5' - '3.8' - '4.1' default: '2.5' max_slippage_percent: anyOf: - type: number maximum: 100 exclusiveMinimum: 0 - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Max Slippage Percent description: Maximum allowed slippage for token swaps in percentage examples: - 2.5 - 0.5 - 10 default: '0.5' loan_to_value: anyOf: - type: number maximum: 100 exclusiveMinimum: 0 - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Loan To Value description: Loan To Value percentage of the loop examples: - 20.5 - 50.6 - 70 default: '60' emode_category: anyOf: - type: integer minimum: 0 - type: 'null' title: Emode Category description: >- Aave E-Mode category ID to set before executing the loop. If not provided, E-Mode will not be changed. examples: - 0 - 1 - 2 is_account_abstraction: type: boolean title: Is Account Abstraction description: Whether to use account abstraction for the transaction. default: false examples: - true - false account_owner: anyOf: - type: string - type: 'null' title: Account Owner description: >- The owner address of the smart account (Safe). Required when `is_account_abstraction` is True. This address will be used as the 'from' address when building the execTransaction call. examples: - '0x06A9aF046187895AcFc7258450B15397CAc67400' type: object required: - chain - sender - collateral_token - borrow_token - initial_collateral_amount - multiplier - max_slippage_percent - loan_to_value title: AaveLoopRequest description: Request model for executing an Aave loop strategy. default: chain: arbitrum sender: '0x29F20a192328eF1aD35e1564aBFf4Be9C5ce5f7B' estimate_gas: true signed_authorization: address: '0xcA11bde05977b3631167028862bE2a173976CA11' chainId: 42161 nonce: 1000 r: '0x5f9f3f3226ac91bc01a72dd117141f6c6de1ed30d3af9f95c3423316dc21d615' s: '0x78f7982ede9dabc53d7153974c5692fda8a21fc73bdafc42aaf135505e22817c' yParity: 0 collateral_token: USDC borrow_token: WETH initial_collateral_amount: '1000' multiplier: '2.5' max_slippage_percent: '0.5' loan_to_value: '60' is_account_abstraction: false required_allowances: [] BundlerTransactionResponse: properties: transaction: $ref: '#/components/schemas/UnsignedMulticallTransaction' description: >- The unsigned multicall transaction data. User must sign and broadcast to network. type: object required: - transaction title: BundlerTransactionResponse SafeTransactionResponse: properties: transaction: $ref: '#/components/schemas/SafeTransactionParams' description: >- Safe transaction parameters. Sign safeTxHash and propose to Safe Transaction Service. type: object required: - transaction title: SafeTransactionResponse description: Response containing Safe transaction parameters for multi-sig proposal. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError SignedAuthorization: properties: nonce: type: integer title: Nonce description: The nonce of the authorization examples: - 1000 address: type: string title: Address description: The address of the authorization examples: - '0xcA11bde05977b3631167028862bE2a173976CA11' chainId: type: integer title: Chainid description: The chain ID examples: - 42161 r: anyOf: - type: integer - type: string title: R description: The r value of the signature examples: - '0x5f9f3f3226ac91bc01a72dd117141f6c6de1ed30d3af9f95c3423316dc21d615' s: anyOf: - type: integer - type: string title: S description: The s value of the signature examples: - '0x78f7982ede9dabc53d7153974c5692fda8a21fc73bdafc42aaf135505e22817c' yParity: type: integer title: Yparity description: The y-parity of the signature (0 or 1) examples: - 0 type: object required: - nonce - address - chainId - r - s - yParity title: SignedAuthorization UnsignedMulticallTransaction: properties: chainId: type: string title: Chainid description: The chain id of the transaction data: type: string title: Data description: The data of the transaction from: type: string title: From description: The sender of the transaction gas: anyOf: - type: string - type: 'null' title: Gas description: The gas of the transaction to: type: string title: To description: The recipient of the transaction value: type: string title: Value description: The value of the transaction nonce: type: string title: Nonce description: The nonce of the address maxFeePerGas: type: string title: Maxfeepergas description: The max fee per gas of the transaction maxPriorityFeePerGas: type: string title: Maxpriorityfeepergas description: The max priority fee per gas of the transaction authorizationList: items: $ref: '#/components/schemas/SignedAuthorization' type: array title: Authorizationlist description: EIP-7702 authorization default: [] type: object required: - chainId - data - from - gas - to - value - nonce - maxFeePerGas - maxPriorityFeePerGas title: UnsignedMulticallTransaction example: chainId: '0x2105' data: >- 0x1688f0b900000000000000000000000029fcb43b46531bca003ddc8fcb67ffe91900c762000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000675f4a3d from: '0x4A83b4413CF41C3244027e1590E35a0F48403F0c' gas: '0x7a120' maxFeePerGas: '0x59682f00' maxPriorityFeePerGas: '0x3b9aca00' nonce: '0x5' to: '0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67' value: '0x0' SafeTransactionParams: properties: to: type: string title: To description: Destination address (MultiSend contract for bundled txs) examples: - '0xA238CBeb142c10Ef7Ad8442C6D1f9E89e07e7761' value: type: integer title: Value description: ETH value to send examples: - 0 data: type: string title: Data description: Encoded transaction data examples: - 0x8d80ff0a... operation: type: integer title: Operation description: 0 = Call, 1 = DelegateCall examples: - 1 safeTxGas: type: integer title: Safetxgas description: Gas for the Safe transaction execution examples: - 0 baseGas: type: integer title: Basegas description: Base gas for the transaction examples: - 0 gasPrice: type: integer title: Gasprice description: Gas price for refund calculation examples: - 0 gasToken: type: string title: Gastoken description: Token address for gas refund (0x0 for ETH) examples: - '0x0000000000000000000000000000000000000000' refundReceiver: type: string title: Refundreceiver description: Address to receive gas refund examples: - '0x0000000000000000000000000000000000000000' nonce: type: integer title: Nonce description: Safe transaction nonce examples: - 42 safeTxHash: type: string title: Safetxhash description: EIP-712 hash of the Safe transaction (sign this with your wallet) examples: - 0xabc123... type: object required: - to - value - data - operation - safeTxGas - baseGas - gasPrice - gasToken - refundReceiver - nonce - safeTxHash title: SafeTransactionParams description: >- Parameters for proposing a transaction to a Safe multi-sig wallet. This model is used when the Safe has threshold > 1 or when the user wants to propose a transaction for other owners to sign via the Safe Transaction Service. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key description: >- Your Compass API Key. Get your key [here](https://www.compasslabs.ai/dashboard). ````