> ## Documentation Index > Fetch the complete documentation index at: https://etherspot.fyi/llms.txt > Use this file to discover all available pages before exploring further. # Functions This page will contain an exhaustive list of all functions we can call using the SDK. If you want to take a look at the SDK code in more detail then you can check these functions out [here on Github](https://github.com/etherspot/etherspot-modular-sdk/blob/master/src/sdk/sdk.ts). | Function Name | Description | | ------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [installModule(moduleTypeId: MODULE\_TYPE, module: string, initData?: string)](/modular-sdk/module-details) | installs a module identified by its moduleType and moduleAddress. moduleType must be from the list of valid moduleTypes in module-details page. initData is optional | | getPreviousModuleAddress(moduleTypeId: MODULE\_TYPE, module: string) | get previous module for a specific module installed on etherspot modular wallet | | generateModuleDeInitData(moduleTypeId: MODULE\_TYPE, module: string, moduleDeInitData: string) | generate the deInitData to uninstall the module. deInitData includes the prevModuleAddress along with deinitData specific to the module being uninstalled. | | [uninstallModule(moduleTypeId: MODULE\_TYPE, module: string, deinitData: string)](/modular-sdk/install-uninstall-module) | uninstalls a module identified by its moduleType and moduleAddress. moduleType must be from the list of valid moduleTypes in module-details page. deinitData is mandatory which is used to identify previous module to unlink current module | | isModuleInstalled(moduleTypeId: MODULE\_TYPE, module: string) | check if the module is installed on the etherspot modular wallet. returns true or false | | getAllModules(pageSize: number = DEFAULT\_QUERY\_PAGE\_SIZE) | get List of all modules installed on etherspot modular wallet. Query is made in paginated manner with an option to set page-size, In absence of page-size, defaultPageSize will override the pageSize argument | | destroy() | Destroys the SDK object. | | signMessage() | Signs a message using the Etherspot modular wallet. | | supportedNetworks() | get list of supported networks and chainIds | | getCounterFactualAddress() | Gets the address of the Etherspot wallet created. | | estimate(gasDetails?: TransactionGasInfoForUserOp) | Returns the estimated amount of gas a transaction will cost. | | totalGasEstimated(userOp: UserOperationStruct) | Returns the estimated amount of gas a batch of transactions will cost. | | getGasFee() | Returns the current gas fee for the network. | | send(userOp: UserOperationStruct) | Sends a struct of signed UserOps to the bundler. | | getNativeBalance() | Returns the native token amount of the Etherspot wallet. | | getUserOpReceipt(userOpHash: string) | Returns the receipt of a UserOp processed by the bundler. | | getUserOpHash(userOp: UserOperationStruct) | Returns the hash of a UserOp processed by the bundler. | | [addUserOpsToBatch(tx: UserOpsRequest)](/modular-sdk/batching-transactions) | Adds a UserOp to the batch before sending. | | clearUserOpsFromBatch() | Clears the batch. | | getAccountContract() | Returns the Etherspot smart contract for the Etherspot smart wallet. |