<!--
Sitemap:
- [Why Viem](/docs/introduction): A brief preamble on why we built Viem
- [Installation](/docs/installation)
- [Getting Started](/docs/getting-started): Get started with viem in just a few lines of code.
- [Platform Compatibility](/docs/compatibility): Platforms compatible with Viem
- [Frequently Asked Questions](/docs/faq)
- [Migration Guide](/docs/migration-guide)
- [Ethers v5 → viem Migration Guide](/docs/ethers-migration): Migrate from Ethers v5 to viem
- [TypeScript](/docs/typescript): TypeScript support for Viem
- [Error Handling](/docs/error-handling)
- [EIP-7702 Overview](/docs/eip7702): An Overview of EIP-7702
- [Contract Writes with EIP-7702](/docs/eip7702/contract-writes)
- [Sending Transactions with EIP-7702](/docs/eip7702/sending-transactions)
- [Blob Transactions](/docs/guides/blob-transactions): Sending your first Blob Transaction with Viem.
- [Introduction to Clients & Transports](/docs/clients/intro): A brief introduction to Clients & Transports.
- [Public Client](/docs/clients/public): A function to create a Public Client
- [Wallet Client](/docs/clients/wallet): A function to create a Wallet Client.
- [Test Client](/docs/clients/test): A function to create a Test Client
- [Build your own Client](/docs/clients/custom)
- [HTTP Transport](/docs/clients/transports/http): A function to create a HTTP Transport for a Client
- [WebSocket Transport](/docs/clients/transports/websocket): A function to create a WebSocket Transport for a Client
- [Custom Transport](/docs/clients/transports/custom): A function to create a Custom Transport for a Client
- [IPC Transport](/docs/clients/transports/ipc): A function to create an IPC Transport for a Client
- [Fallback Transport](/docs/clients/transports/fallback): A function to create a Fallback Transport for a Client
- [Introduction to Public Actions](/docs/actions/public/introduction): A brief introduction on what Public Actions are in viem.
- [createAccessList](/docs/actions/public/createAccessList)
- [getBalance](/docs/actions/public/getBalance): Returns the balance of an address in wei.
- [getTransactionCount](/docs/actions/public/getTransactionCount): Returns the number of Transactions an Account has sent.
- [getBlock](/docs/actions/public/getBlock): Returns information about a block at a block number, hash or tag.
- [getBlockReceipts](/docs/actions/public/getBlockReceipts): Returns the transaction receipts of a block at a block number, hash or tag.
- [getBlockNumber](/docs/actions/public/getBlockNumber): Returns the number of the most recent block seen.
- [getBlockTransactionCount](/docs/actions/public/getBlockTransactionCount): Returns the number of Transactions at a block number, hash or tag.
- [simulateBlocks](/docs/actions/public/simulateBlocks): Simulates a set of calls on block(s).
- [watchBlockNumber](/docs/actions/public/watchBlockNumber): Watches and returns incoming block numbers.
- [watchBlocks](/docs/actions/public/watchBlocks): Watches and returns information for incoming blocks.
- [call](/docs/actions/public/call): An Action for executing a new message call.
- [simulateCalls](/docs/actions/public/simulateCalls): Simulates a set of calls on block(s).
- [getChainId](/docs/actions/public/getChainId): Returns the chain ID associated with the current network
- [getEip712Domain](/docs/actions/public/getEip712Domain): Reads the EIP-712 domain from a contract.
- [estimateFeesPerGas](/docs/actions/public/estimateFeesPerGas): Returns an estimate for the fees per gas (in wei) for a transaction to be likely included in the next block.
- [estimateGas](/docs/actions/public/estimateGas): An Action for estimating gas for a transaction.
- [estimateMaxPriorityFeePerGas](/docs/actions/public/estimateMaxPriorityFeePerGas): Returns an estimate for the max priority fee per gas (in wei) for a transaction to be likely included in the next block.
- [getBlobBaseFee](/docs/actions/public/getBlobBaseFee): Returns the current blob base fee (in wei).
- [getFeeHistory](/docs/actions/public/getFeeHistory): Returns a collection of historical gas information.
- [getGasPrice](/docs/actions/public/getGasPrice): Returns the current price of gas (in wei).
- [createBlockFilter](/docs/actions/public/createBlockFilter): An Action for creating a new Block Filter.
- [createEventFilter](/docs/actions/public/createEventFilter): An Action for creating a new Event Filter.
- [createPendingTransactionFilter](/docs/actions/public/createPendingTransactionFilter): An Action for creating a new pending transaction filter.
- [getFilterChanges](/docs/actions/public/getFilterChanges): Returns a list of logs or hashes based on a Filter.
- [getFilterLogs](/docs/actions/public/getFilterLogs): Returns a list of event logs since the filter was created.
- [getLogs](/docs/actions/public/getLogs): Returns a list of event logs matching the provided parameters.
- [watchEvent](/docs/actions/public/watchEvent): Watches and returns emitted Event Logs.
- [uninstallFilter](/docs/actions/public/uninstallFilter): Destroys a Filter.
- [getProof](/docs/actions/public/getProof): Returns the account and storage values of the specified account including the Merkle-proof.
- [verifyMessage](/docs/actions/public/verifyMessage): Verifies if a signed message was generated by the provided address.
- [verifyTypedData](/docs/actions/public/verifyTypedData): Verifies a typed data signature
- [prepareTransactionRequest](/docs/actions/wallet/prepareTransactionRequest): Prepares a transaction request for signing.
- [getTransaction](/docs/actions/public/getTransaction): Returns information about a transaction given a hash or block identifier.
- [getTransactionConfirmations](/docs/actions/public/getTransactionConfirmations): Returns the number of blocks passed (confirmations) since the transaction was processed on a block.
- [getTransactionReceipt](/docs/actions/public/getTransactionReceipt): Returns the transaction receipt given a transaction hash.
- [sendRawTransaction](/docs/actions/wallet/sendRawTransaction): Sends a signed transaction to the network
- [waitForTransactionReceipt](/docs/actions/public/waitForTransactionReceipt): Retrieves a Transaction Receipt for a given Transaction hash.
- [watchPendingTransactions](/docs/actions/public/watchPendingTransactions): Watches and returns pending transaction hashes.
- [Introduction to Wallet Actions](/docs/actions/wallet/introduction): A brief introduction to Wallet Actions in viem.
- [getAddresses](/docs/actions/wallet/getAddresses): Returns a list of addresses owned by the wallet or client.
- [requestAddresses](/docs/actions/wallet/requestAddresses): Requests a list of accounts managed by a wallet.
- [watchAsset](/docs/actions/wallet/watchAsset): Requests that the user tracks the token in their wallet.
- [getCallsStatus](/docs/actions/wallet/getCallsStatus): Returns the status of a call batch.
- [getCapabilities](/docs/actions/wallet/getCapabilities): Extract capabilities that a connected wallet supports.
- [sendCalls](/docs/actions/wallet/sendCalls): Sign and broadcast a batch of calls to the network.
- [sendCallsSync](/docs/actions/wallet/sendCallsSync): Sign and broadcast a batch of calls to the network, and waits for the calls to be included in a block.
- [showCallsStatus](/docs/actions/wallet/showCallsStatus): Requests for the wallet to show information about a call batch.
- [waitForCallsStatus](/docs/actions/wallet/waitForCallsStatus): Waits for a call batch to be confirmed & included on a Block.
- [addChain](/docs/actions/wallet/addChain): Adds an EVM chain to the wallet.
- [switchChain](/docs/actions/wallet/switchChain): Switch the target chain in a wallet.
- [signMessage](/docs/actions/wallet/signMessage): Signs a message with the Account's private key.
- [signTypedData](/docs/actions/wallet/signTypedData): Signs typed data with the Account's private key.
- [getPermissions](/docs/actions/wallet/getPermissions): Gets the wallets current permissions.
- [requestPermissions](/docs/actions/wallet/requestPermissions): Requests permissions for a wallet.
- [sendRawTransactionSync](/docs/actions/wallet/sendRawTransactionSync): Sends a signed transaction to the network synchronously
- [sendTransaction](/docs/actions/wallet/sendTransaction): Creates, signs, and sends a new transaction to the network.
- [sendTransactionSync](/docs/actions/wallet/sendTransactionSync): Creates, signs, and sends a new transaction to the network synchronously.
- [signTransaction](/docs/actions/wallet/signTransaction): Signs a transaction.
- [Introduction to Test Actions](/docs/actions/test/introduction): A brief introduction on what Test Actions are in viem.
- [impersonateAccount](/docs/actions/test/impersonateAccount): Impersonate an account or contract address.
- [setBalance](/docs/actions/test/setBalance): Modifies the balance of an account.
- [setCode](/docs/actions/test/setCode): Modifies the bytecode stored at an account's address.
- [setNonce](/docs/actions/test/setNonce): Modifies (overrides) the nonce of an account.
- [setStorageAt](/docs/actions/test/setStorageAt): Writes to a slot of an account's storage.
- [stopImpersonatingAccount](/docs/actions/test/stopImpersonatingAccount): Stop impersonating an account after having previously used impersonateAccount.
- [getAutomine](/docs/actions/test/getAutomine): Returns the automatic mining status of the node.
- [increaseTime](/docs/actions/test/increaseTime): Jump forward in time by the given amount of time, in seconds.
- [mine](/docs/actions/test/mine): Mine a specified number of blocks.
- [removeBlockTimestampInterval](/docs/actions/test/removeBlockTimestampInterval): Removes setBlockTimestampInterval if it exists.
- [setAutomine](/docs/actions/test/setAutomine): Enables or disables the automatic mining of new blocks with each new transaction submitted to the network.
- [setIntervalMining](/docs/actions/test/setIntervalMining): Sets the automatic mining interval (in seconds) of blocks.
- [setBlockTimestampInterval](/docs/actions/test/setBlockTimestampInterval): Sets the block's timestamp interval.
- [setBlockGasLimit](/docs/actions/test/setBlockGasLimit): Sets the block's gas limit.
- [setNextBlockBaseFeePerGas](/docs/actions/test/setNextBlockBaseFeePerGas): Sets the next block's base fee per gas.
- [setNextBlockTimestamp](/docs/actions/test/setNextBlockTimestamp): Sets the next block's timestamp.
- [setCoinbase](/docs/actions/test/setCoinbase): Sets the coinbase address to be used in new blocks.
- [setMinGasPrice](/docs/actions/test/setMinGasPrice): Change the minimum gas price accepted by the network (in wei).
- [reset](/docs/actions/test/reset): Resets the fork back to its original state.
- [setLoggingEnabled](/docs/actions/test/setLoggingEnabled): Enable or disable logging on the test node network.
- [setRpcUrl](/docs/actions/test/setRpcUrl): Sets the backend RPC URL.
- [dumpState](/docs/actions/test/dumpState): Serializes the current state into a savable data blob.
- [loadState](/docs/actions/test/loadState): Adds state previously dumped to the current chain.
- [revert](/docs/actions/test/revert): Revert the state of the blockchain at the current block.
- [snapshot](/docs/actions/test/snapshot): Snapshot the state of the blockchain at the current block.
- [dropTransaction](/docs/actions/test/dropTransaction): Removes a transaction from the mempool.
- [getTxpoolContent](/docs/actions/test/getTxpoolContent): Returns the details of all transactions currently pending for inclusion in the next block(s).
- [getTxpoolStatus](/docs/actions/test/getTxpoolStatus): Returns a summary of all the transactions currently pending for inclusion in the next block(s).
- [inspectTxpool](/docs/actions/test/inspectTxpool): Returns a summary of all the transactions currently pending for inclusion in the next block(s).
- [sendUnsignedTransaction](/docs/actions/test/sendUnsignedTransaction): Executes a transaction regardless of the signature.
- [JSON-RPC Account](/docs/accounts/jsonRpc): A function to create a JSON-RPC Account.
- [Local Accounts (Private Key, Mnemonic, etc)](/docs/accounts/local)
- [privateKeyToAccount](/docs/accounts/local/privateKeyToAccount): A function to create a Private Key Account.
- [mnemonicToAccount](/docs/accounts/local/mnemonicToAccount): A function to create a Mnemonic Account.
- [hdKeyToAccount](/docs/accounts/local/hdKeyToAccount): A function to create a Hierarchical Deterministic (HD) Account.
- [toAccount](/docs/accounts/local/toAccount): A function to create a Custom Account.
- [createNonceManager](/docs/accounts/local/createNonceManager): Creates a Nonce Manager for automatic nonce generation
- [signMessage (Local Account)](/docs/accounts/local/signMessage): Signs a message with the Account's private key.
- [signTransaction (Local Account)](/docs/accounts/local/signTransaction): Signs a transaction with the Account's private key.
- [signTypedData (Local Account)](/docs/accounts/local/signTypedData): Signs typed data with the Account's private key.
- [Chains](/docs/chains/introduction)
- [Fees](/docs/chains/fees): Configure chain-based fee data in Viem
- [Formatters](/docs/chains/formatters): Configure chain-based formatters in Viem
- [Serializers](/docs/chains/serializers): Configure chain-based serializers in Viem
- [Celo](/docs/chains/celo): Integrating with Celo in Viem
- [Getting Started with OP Stack](/op-stack): Getting started with the OP Stack in Viem
- [Getting Started with ZKsync](/zksync): Getting started with the ZKsync in Viem
- [Contract Instances](/docs/contract/getContract): A Contract Instance is a type-safe interface for performing contract-related actions with a specific ABI and address, created by the getContract function.
- [createContractEventFilter](/docs/contract/createContractEventFilter): Creates a Filter to retrieve contract event logs.
- [deployContract](/docs/contract/deployContract): Deploys a contract to the network, given bytecode & constructor arguments.
- [estimateContractGas](/docs/contract/estimateContractGas): Estimates the gas required to successfully execute a contract write function call.
- [getCode](/docs/contract/getCode): Retrieves the bytecode at an address.
- [getContractEvents](/docs/contract/getContractEvents): Returns a list of event logs matching the provided parameters.
- [getStorageAt](/docs/contract/getStorageAt): Returns the value from a storage slot at a given address.
- [multicall](/docs/contract/multicall): Batches up multiple functions on a contract in a single call.
- [readContract](/docs/contract/readContract): Calls a read-only function on a contract, and returns the response.
- [simulateContract](/docs/contract/simulateContract): Simulates & validates a contract interaction.
- [writeContract](/docs/contract/writeContract): Executes a write function on a contract.
- [writeContractSync](/docs/contract/writeContractSync): Executes a write function on a contract synchronously.
- [watchContractEvent](/docs/contract/watchContractEvent): Watches and returns emitted contract event logs.
- [decodeDeployData](/docs/contract/decodeDeployData): Decodes ABI encoded deploy data (bytecode & arguments).
- [decodeErrorResult](/docs/contract/decodeErrorResult): Decodes reverted error from a contract function call.
- [decodeEventLog](/docs/contract/decodeEventLog): Decodes ABI encoded event topics & data.
- [decodeFunctionData](/docs/contract/decodeFunctionData): Decodes ABI encoded data (4 byte selector & arguments) into a function name and arguments.
- [decodeFunctionResult](/docs/contract/decodeFunctionResult): Decodes the result of a function call on a contract.
- [encodeDeployData](/docs/contract/encodeDeployData): Encodes deploy data (bytecode & constructor args) into an ABI encoded value.
- [encodeErrorResult](/docs/contract/encodeErrorResult): Encodes a reverted error from a function call.
- [encodeEventTopics](/docs/contract/encodeEventTopics): Encodes an event (with optional arguments) into filter topics.
- [encodeFunctionData](/docs/contract/encodeFunctionData): Encodes the function name and parameters into an ABI encoded value (4 byte selector & arguments).
- [encodeFunctionResult](/docs/contract/encodeFunctionResult): Encodes structured return data into ABI encoded data.
- [parseEventLogs](/docs/contract/parseEventLogs): Extracts & decodes logs from a set of opaque logs.
- [getEnsAddress](/docs/ens/actions/getEnsAddress): Gets address for ENS name.
- [getEnsAvatar](/docs/ens/actions/getEnsAvatar): Gets the avatar of an ENS name.
- [getEnsName](/docs/ens/actions/getEnsName): Gets primary name for specified address.
- [getEnsResolver](/docs/ens/actions/getEnsResolver): Gets resolver for ENS name.
- [getEnsText](/docs/ens/actions/getEnsText): Gets a text record for specified ENS name.
- [labelhash](/docs/ens/utilities/labelhash): Hashes ENS label.
- [namehash](/docs/ens/utilities/namehash): Hashes ENS name.
- [normalize](/docs/ens/utilities/normalize): Normalizes ENS name to UTS46.
- [verifySiweMessage](/docs/siwe/actions/verifySiweMessage): Verifies EIP-4361 formatted message was signed.
- [createSiweMessage](/docs/siwe/utilities/createSiweMessage): Creates EIP-4361 formatted message.
- [generateSiweNonce](/docs/siwe/utilities/generateSiweNonce): Generates random EIP-4361 nonce.
- [parseSiweMessage](/docs/siwe/utilities/parseSiweMessage): Parses EIP-4361 formatted message into message fields object.
- [validateSiweMessage](/docs/siwe/utilities/validateSiweMessage): Validates EIP-4361 message.
- [decodeAbiParameters](/docs/abi/decodeAbiParameters): Decodes ABI encoded data.
- [encodeAbiParameters](/docs/abi/encodeAbiParameters): Generates ABI encoded data.
- [encodePacked](/docs/abi/encodePacked): Generates ABI encoded data.
- [getAbiItem](/docs/abi/getAbiItem): Retrieves an item from the ABI array.
- [parseAbi](/docs/abi/parseAbi): Parses human-readable ABI into JSON.
- [parseAbiItem](/docs/abi/parseAbiItem): Parses human-readable ABI item (e.g. error, event, function) into ABI item.
- [parseAbiParameter](/docs/abi/parseAbiParameter): Parses human-readable ABI parameter into ABI parameter.
- [parseAbiParameters](/docs/abi/parseAbiParameters): Parses human-readable ABI parameters into ABI parameters.
- [getDelegation](/docs/eip7702/getDelegation): Returns the address an account has delegated to via EIP-7702.
- [prepareAuthorization](/docs/eip7702/prepareAuthorization): Prepares an EIP-7702 Authorization for signing.
- [signAuthorization](/docs/eip7702/signAuthorization): Signs an EIP-7702 Authorization object.
- [hashAuthorization](/docs/eip7702/hashAuthorization): Calculates an Authorization object hash in EIP-7702 format.
- [recoverAuthorizationAddress](/docs/eip7702/recoverAuthorizationAddress): Recovers the original signing address from a signed Authorization object.
- [verifyAuthorization](/docs/eip7702/verifyAuthorization): Verifies that an Authorization object was signed by the provided address.
- [getAddress](/docs/utilities/getAddress): Converts an address into an address that is checksum encoded.
- [getContractAddress](/docs/utilities/getContractAddress): Retrieves a contract address.
- [isAddress](/docs/utilities/isAddress): Checks if the address is valid.
- [isAddressEqual](/docs/utilities/isAddressEqual): Checks if the given addresses (checksummed) are equal.
- [blobsToProofs](/docs/utilities/blobsToProofs): Compute the proofs for a list of blobs and their commitments.
- [blobsToCommitments](/docs/utilities/blobsToCommitments): Compute commitments from a list of blobs.
- [commitmentsToVersionedHashes](/docs/utilities/commitmentsToVersionedHashes): Transform a list of commitments to their versioned hashes.
- [commitmentToVersionedHash](/docs/utilities/commitmentToVersionedHash): Transform a commitment to it's versioned hash.
- [fromBlobs](/docs/utilities/fromBlobs): Transforms blobs into the originating data.
- [sidecarsToVersionedHashes](/docs/utilities/sidecarsToVersionedHashes): Transforms a list of sidecars to their versioned hashes.
- [toBlobs](/docs/utilities/toBlobs): Transforms arbitrary data into blobs.
- [toBlobSidecars](/docs/utilities/toBlobSidecars): Transforms arbitrary data into blob sidecars.
- [extractChain](/docs/utilities/extractChain)
- [concat](/docs/utilities/concat): Concatenates a set of hex values or byte arrays.
- [isBytes](/docs/utilities/isBytes): Checks whether the value is a byte array or not.
- [isHex](/docs/utilities/isHex): Checks whether the value is a hex value or not.
- [pad](/docs/utilities/pad): Pads a hex value or byte array with leading or trailing zeros.
- [slice](/docs/utilities/slice): Returns a section of the hex or byte array given a start/end bytes offset.
- [size](/docs/utilities/size): Retrieves the size of the value (in bytes).
- [trim](/docs/utilities/trim): Trims the leading or trailing zero byte data from a hex value or byte array.
- [fromBytes](/docs/utilities/fromBytes): Decodes a byte array to a string, hex value, boolean or number.
- [fromHex](/docs/utilities/fromHex): Decodes a hex value to a string, number or byte array.
- [fromRlp](/docs/utilities/fromRlp): Decodes a RLP value into a decoded hex value or byte array.
- [toBytes](/docs/utilities/toBytes): Encodes a string, hex value, number or boolean to a byte array.
- [toHex](/docs/utilities/toHex): Encodes a string, number, boolean or byte array to a hex value.
- [toRlp](/docs/utilities/toRlp): Encodes a hex value or byte array into a RLP encoded value.
- [isHash](/docs/utilities/isHash): Checks if a string is a valid 32-byte hex hash.
- [keccak256](/docs/utilities/keccak256): Calculates the Keccak256 hash of a byte array.
- [ripemd160](/docs/utilities/ripemd160): Calculates the Ripemd160 hash of a byte array.
- [sha256](/docs/utilities/sha256): Calculates the Sha256 hash of a byte array.
- [toEventHash](/docs/utilities/toEventHash): Returns the hash (of the event signature) for a given event definition.
- [toEventSelector](/docs/utilities/toEventSelector): Returns the event selector for a given event definition.
- [toEventSignature](/docs/utilities/toEventSignature): Returns the signature for a given event or event definition.
- [toFunctionHash](/docs/utilities/toFunctionHash): Returns the hash (of the function signature) for a given function definition.
- [toFunctionSelector](/docs/utilities/toFunctionSelector): Returns the function selector (4 byte encoding) for a given function definition.
- [toFunctionSignature](/docs/utilities/toFunctionSignature): Returns the signature for a given function definition.
- [setupKzg](/docs/utilities/setupKzg): Sets up and returns a KZG interface.
- [compactSignatureToSignature](/docs/utilities/compactSignatureToSignature): Parses a compact signature into signature format.
- [hashMessage](/docs/utilities/hashMessage): Hashes a message in EIP-191 format.
- [hashTypedData](/docs/utilities/hashTypedData): Hashes EIP-712 typed data.
- [isErc6492Signature](/docs/utilities/isErc6492Signature): Checks whether the signature is in ERC-6492 format.
- [parseCompactSignature](/docs/utilities/parseCompactSignature): Parses a hex formatted compact signature into a structured compact signature.
- [parseErc6492Signature](/docs/utilities/parseErc6492Signature): Parses a hex-formatted ERC-6492 flavoured signature.
- [parseSignature](/docs/utilities/parseSignature): Parses a hex formatted signature into a structured signature.
- [recoverAddress](/docs/utilities/recoverAddress): Recovers the signing address from a hash & signature.
- [recoverMessageAddress](/docs/utilities/recoverMessageAddress): Recovers the signing address from a message & signature.
- [recoverPublicKey](/docs/utilities/recoverPublicKey): Recovers the signing public key from a hash & signature.
- [recoverTransactionAddress](/docs/utilities/recoverTransactionAddress): Recovers the signing address from a transaction & signature.
- [recoverTypedDataAddress](/docs/utilities/recoverTypedDataAddress): Recovers the signing address from EIP-712 typed data & signature.
- [serializeCompactSignature](/docs/utilities/serializeCompactSignature): Serializes a compact signature into hex format.
- [serializeErc6492Signature](/docs/utilities/serializeErc6492Signature): Serializes a ERC-6492 flavoured signature into hex format.
- [serializeSignature](/docs/utilities/serializeSignature): Serializes a structured signature into hex format.
- [signatureToCompactSignature](/docs/utilities/signatureToCompactSignature): Parses a signature into a compact signature.
- [verifyMessage](/docs/utilities/verifyMessage): Verifies if a signed message was generated by the provided address.
- [verifyTypedData](/docs/utilities/verifyTypedData): Verifies a typed data signature
- [parseTransaction](/docs/utilities/parseTransaction): Converts a serialized transaction to a structured transaction.
- [serializeTransaction](/docs/utilities/serializeTransaction): Serializes a transaction object.
- [formatEther](/docs/utilities/formatEther): Converts numerical wei to a string representation of ether.
- [formatGwei](/docs/utilities/formatGwei): Converts numerical wei to a string representation of gwei.
- [formatUnits](/docs/utilities/formatUnits): Divides a number by a given exponent of base 10, and formats it into a string representation of the number.
- [parseEther](/docs/utilities/parseEther): Converts a string representation of ether to numerical wei.
- [parseGwei](/docs/utilities/parseGwei): Converts a string representation of gwei to numerical wei.
- [parseUnits](/docs/utilities/parseUnits): Multiplies a string representation of a number by a given exponent of base 10.
- [Terms](/docs/glossary/terms): Glossary of Terms in viem.
- [Types](/docs/glossary/types): Glossary of Types in viem.
- [Errors](/docs/glossary/errors): Glossary of Errors in viem.
- [Getting Started with Account Abstraction](/account-abstraction): Getting Started with Account Abstraction in Viem
- [Sending User Operations](/account-abstraction/guides/sending-user-operations)
- [Bundler Client](/account-abstraction/clients/bundler): A function to create a Bundler Client.
- [Paymaster Client](/account-abstraction/clients/paymaster): A function to create a Paymaster Client.
- [Smart Accounts](/account-abstraction/accounts/smart)
- [Coinbase Smart Wallet](/account-abstraction/accounts/smart/toCoinbaseSmartAccount)
- [MetaMask Smart Account](/account-abstraction/accounts/smart/toMetaMaskSmartAccount)
- [Thirdweb Smart Account](/account-abstraction/accounts/smart/toThirdwebSmartAccount)
- [Nexus Smart Account](/account-abstraction/accounts/smart/toNexusSmartAccount)
- [Light Smart Account](/account-abstraction/accounts/smart/toLightSmartAccount)
- [Kernel (ZeroDev) Smart Account](/account-abstraction/accounts/smart/toEcdsaKernelSmartAccount)
- [Safe Smart Account](/account-abstraction/accounts/smart/toSafeSmartAccount)
- [Simple Smart Account](/account-abstraction/accounts/smart/toSimpleSmartAccount)
- [Solady Smart Account](/account-abstraction/accounts/smart/toSoladySmartAccount)
- [Trust Smart Account](/account-abstraction/accounts/smart/toTrustSmartAccount)
- [toSmartAccount](/account-abstraction/accounts/smart/toSmartAccount): Creates a Smart Account with a provided Account Implementation.
- [signMessage (Smart Account)](/account-abstraction/accounts/smart/signMessage)
- [signTypedData (Smart Account)](/account-abstraction/accounts/smart/signTypedData)
- [signUserOperation (Smart Account)](/account-abstraction/accounts/smart/signUserOperation)
- [WebAuthn Account](/account-abstraction/accounts/webauthn)
- [toWebAuthnAccount](/account-abstraction/accounts/webauthn/toWebAuthnAccount)
- [createWebAuthnCredential](/account-abstraction/accounts/webauthn/createWebAuthnCredential)
- [estimateUserOperationGas](/account-abstraction/actions/bundler/estimateUserOperationGas): Estimates the gas values for a User Operation to be executed successfully.
- [getChainId](/account-abstraction/actions/bundler/getChainId): Returns the chain ID associated with the bundler
- [getSupportedEntryPoints](/account-abstraction/actions/bundler/getSupportedEntryPoints): Returns the EntryPoints that the bundler supports.
- [getUserOperation](/account-abstraction/actions/bundler/getUserOperation): Retrieves information about a User Operation given a hash.
- [getUserOperationReceipt](/account-abstraction/actions/bundler/getUserOperationReceipt): Returns the User Operation receipt given a User Operation hash.
- [prepareUserOperation](/account-abstraction/actions/bundler/prepareUserOperation): Prepares a User Operation for execution and fills in missing properties.
- [sendUserOperation](/account-abstraction/actions/bundler/sendUserOperation): Broadcasts a User Operation to the Bundler.
- [waitForUserOperationReceipt](/account-abstraction/actions/bundler/waitForUserOperationReceipt): Waits for the User Operation to be included on a Block, and then returns the User Operation receipt.
- [getPaymasterData](/account-abstraction/actions/paymaster/getPaymasterData): Retrieves paymaster-related properties to be used for the User Operation.
- [getPaymasterStubData](/account-abstraction/actions/paymaster/getPaymasterStubData): Retrieves paymaster-related properties to be used for the User Operation.
- [Getting Started](/experimental): Getting started with experimental features in Viem
- [Extending Client with ERC-7715](/experimental/erc7715/client): Setting up your Viem Client
- [grantPermissions](/experimental/erc7715/grantPermissions): Request permissions from a wallet to perform actions on behalf of a user.
- [Extending Client with ERC-7739 Actions](/experimental/erc7739/client): Setting up your Viem Client
- [signMessage](/experimental/erc7739/signMessage): Signs a personal sign message via Solady's ERC-1271 format.
- [signTypedData](/experimental/erc7739/signTypedData): Signs typed data via Solady's ERC-1271 format.
- [hashMessage](/experimental/erc7739/hashMessage): Hashes an EIP-191 message via ERC-7739 format.
- [hashTypedData](/experimental/erc7739/hashTypedData): Hashes EIP-712 typed data via Solady's ERC-1271 format.
- [wrapTypedDataSignature](/experimental/erc7739/wrapTypedDataSignature)
- [Extending Client with ERC-7811 Actions](/experimental/erc7811/client): Setting up your Viem Client
- [getAssets](/experimental/erc7811/getAssets): Requests to get assets for an account from a Wallet.
- [Extending Client with ERC-7821 Actions](/experimental/erc7821/client): Setting up your Viem Client
- [execute](/experimental/erc7821/execute): Executes call(s) using the `execute` function on an ERC-7821-compatible contract.
- [executeBatches](/experimental/erc7821/executeBatches): Executes batches of call(s) on an ERC-7821-compatible contract.
- [supportsExecutionMode](/experimental/erc7821/supportsExecutionMode): Checks if the contract supports the ERC-7821 execution mode.
- [Extending Client with ERC-7846 Actions](/experimental/erc7846/client): Setting up your Viem Client
- [connect](/experimental/erc7846/connect): Requests to connect Account(s).
- [disconnect](/experimental/erc7846/disconnect): Requests to disconnect account(s).
- [Extending Client with ERC-7895 Actions](/experimental/erc7895/client): Setting up your Viem Client
- [addSubAccount](/experimental/erc7895/addSubAccount): Requests to add a Sub Account.
- [Client](/op-stack/client): Setting up your Viem Client with the OP Stack
- [Chains](/op-stack/chains)
- [Deposits](/op-stack/guides/deposits)
- [Withdrawals](/op-stack/guides/withdrawals)
- [buildDepositTransaction](/op-stack/actions/buildDepositTransaction): Builds & prepares parameters for a deposit transaction to be initiated on an L1 and executed on the L2.
- [buildProveWithdrawal](/op-stack/actions/buildProveWithdrawal): Builds the transaction that proves a withdrawal was initiated on an L2.
- [estimateContractL1Fee](/op-stack/actions/estimateContractL1Fee): Estimates the L1 fee to execute an L2 contract write.
- [estimateContractL1Gas](/op-stack/actions/estimateContractL1Gas): Estimates the L1 gas to execute an L2 contract write.
- [estimateContractTotalFee](/op-stack/actions/estimateContractTotalFee): Estimates the total (L1 + L2) fee to execute an L2 contract write.
- [estimateContractTotalGas](/op-stack/actions/estimateContractTotalGas): Estimates the total (L1 + L2) gas to execute an L2 contract write.
- [estimateInitiateWithdrawalGas](/op-stack/actions/estimateInitiateWithdrawalGas): Estimates gas required to initiate a withdrawal on an L2 to the L1.
- [estimateL1Fee](/op-stack/actions/estimateL1Fee): Estimates the L1 fee to execute an L2 transaction.
- [estimateL1Gas](/op-stack/actions/estimateL1Gas): Estimates the amount of L1 gas required to execute an L2 transaction
- [estimateOperatorFee](/op-stack/actions/estimateOperatorFee): Estimates the operator fee to execute an L2 transaction.
- [estimateTotalFee](/op-stack/actions/estimateTotalFee): Estimates the L1 + L2 + operator fee to execute an L2 transaction.
- [estimateTotalGas](/op-stack/actions/estimateTotalGas): Estimates the amount of L1 + L2 gas required to execute an L2 transaction
- [initiateWithdrawal](/op-stack/actions/initiateWithdrawal): Initiates a withdrawal on an L2 to the L1.
- [buildInitiateWithdrawal](/op-stack/actions/buildInitiateWithdrawal): Builds & prepares parameters for a withdrawal to be initiated on an L2.
- [estimateDepositTransactionGas](/op-stack/actions/estimateDepositTransactionGas): Estimates gas to initiate a deposit transaction on an L1, which executes a transaction on an L2.
- [estimateFinalizeWithdrawalGas](/op-stack/actions/estimateFinalizeWithdrawalGas): Estimates gas required to finalize a withdrawal that occurred on an L2.
- [estimateProveWithdrawalGas](/op-stack/actions/estimateProveWithdrawalGas): Estimates gas required to prove a withdrawal that occurred on an L2.
- [getGame](/op-stack/actions/getGame): Retrieves a valid dispute game on an L2 that occurred after a provided L2 block number.
- [getGames](/op-stack/actions/getGames): Retrieves dispute games for an L2.
- [getL2Output](/op-stack/actions/getL2Output): Retrieves the first L2 output proposal that occurred after a provided block number.
- [getTimeToFinalize](/op-stack/actions/getTimeToFinalize): Returns the time until the withdrawal transaction can be finalized.
- [getTimeToNextGame](/op-stack/actions/getTimeToNextGame): Returns the time until the next L2 dispute game is submitted.
- [getTimeToNextL2Output](/op-stack/actions/getTimeToNextL2Output): Builds & prepares parameters for a withdrawal to be initiated on an L2.
- [getTimeToProve](/op-stack/actions/getTimeToProve): Gets time until the L2 withdrawal transaction is ready to be proved.
- [getWithdrawalStatus](/op-stack/actions/getWithdrawalStatus): Returns the current status of a withdrawal.
- [waitForNextGame](/op-stack/actions/waitForNextGame): Waits for the next dispute game to be submitted.
- [waitForNextL2Output](/op-stack/actions/waitForNextL2Output): Waits for the next L2 output (after the provided block number) to be submitted.
- [waitToFinalize](/op-stack/actions/waitToFinalize): Waits until the withdrawal transaction can be finalized.
- [waitToProve](/op-stack/actions/waitToProve): Waits until the L2 withdrawal transaction is ready to be proved.
- [depositTransaction](/op-stack/actions/depositTransaction): Initiates a deposit transaction on an L1, which executes a transaction on an L2.
- [finalizeWithdrawal](/op-stack/actions/finalizeWithdrawal): Finalizes a withdrawal that occurred on an L2.
- [proveWithdrawal](/op-stack/actions/proveWithdrawal): Proves a withdrawal that occurred on an L2.
- [extractTransactionDepositedLogs](/op-stack/utilities/extractTransactionDepositedLogs): Extracts "TransactionDeposited" logs from an opaque array of logs.
- [extractWithdrawalMessageLogs](/op-stack/utilities/extractWithdrawalMessageLogs): Extracts "MessagePassed" logs from a withdrawal initialization from an opaque array of logs.
- [getL2TransactionHash](/op-stack/utilities/getL2TransactionHash): Computes the L2 transaction hash from an L1 "TransactionDeposited" log.
- [getL2TransactionHashes](/op-stack/utilities/getL2TransactionHashes): Computes the L2 transaction hashes from an array of L1 "TransactionDeposited" logs.
- [getWithdrawals](/op-stack/utilities/getWithdrawals): Gets the messages from a withdrawal initialization.
- [getSourceHash](/op-stack/utilities/getSourceHash): Computes source hash of a deposit transaction.
- [opaqueDataToDepositData](/op-stack/utilities/opaqueDataToDepositData): Converts opaque data into a structured deposit data format.
- [getWithdrawalHashStorageSlot](/op-stack/utilities/getWithdrawalHashStorageSlot): Computes the withdrawal hash storage slot to be used when proving a withdrawal.
- [parseTransaction (OP Stack)](/op-stack/utilities/parseTransaction): Converts a serialized transaction to a structured transaction, with support for OP Stack.
- [serializeTransaction (OP Stack)](/op-stack/utilities/serializeTransaction): Serializes a transaction object, with support for OP Stack.
- [USDC (Circle)](/circle-usdc)
- [Integrating USDC into Your Application](/circle-usdc/guides/integrating)
- [Cross-Chain USDC Transfers](/circle-usdc/guides/cross-chain)
- [Cross Chain USDC Transfers with Bridge Kit](/circle-usdc/guides/bridge-kit)
- [Cross Chain USDC Transfers (CCTP Integration)](/circle-usdc/guides/manual-cctp)
- [Gasless USDC Transfers with Circle Paymaster](/circle-usdc/guides/paymaster)
- [Circle Smart Account](/circle-usdc/guides/smart-account)
- [Getting Started](/tempo/)
- [Chains](/tempo/chains)
- [Guides](/tempo/guides/): Task-oriented guides for building common Tempo features with Viem.
- [Create an Account](/tempo/guides/accounts/create): Create a Tempo Account from a private key, passkey, or device-bound key, and use it with a Viem client.
- [Sign In with a Passkey](/tempo/guides/accounts/passkeys): Create and restore WebAuthn passkey accounts for non-custodial browser sign-in on Tempo.
- [Use the Tempo Accounts SDK](/tempo/guides/accounts/accounts-sdk): Connect a Tempo account with the Tempo Accounts SDK and drive it with Viem and Tempo Actions.
- [Tempo Transactions](/tempo/transactions): Send your first Tempo Transaction with Viem, and discover the payment-native features they unlock.
- [Batch Calls](/tempo/guides/batch-calls): Bundle multiple operations into a single atomic Tempo Transaction.
- [Concurrent Transactions](/tempo/guides/concurrent-transactions): Send multiple Tempo Transactions in parallel using concurrent nonces.
- [Scheduled Transactions](/tempo/guides/scheduled-transactions): Sign a Tempo Transaction now and define when it can execute onchain.
- [Pay Fees in a Stablecoin](/tempo/guides/pay-fees): Pay Tempo transaction fees in any USD-denominated TIP-20 stablecoin.
- [Sponsor User Fees](/tempo/guides/sponsor-fees): Sponsor transaction fees on behalf of your users for a gasless experience on Tempo.
- [Create a TIP-20 Token](/tempo/guides/create-token): Deploy a TIP-20 stablecoin on Tempo and read its onchain metadata.
- [Mint & Burn Tokens](/tempo/guides/manage-token-balances): Mint and burn TIP-20 token supply on Tempo.
- [Transfer Tokens](/tempo/guides/transfer-tokens): Transfer TIP-20 tokens, authorize spenders, and read balances on Tempo.
- [Manage Token Roles & Supply](/tempo/guides/manage-token-roles): Grant and revoke TIP-20 roles, cap supply, and pause transfers on Tempo.
- [Configure Transfer Policies](/tempo/guides/transfer-policies): Restrict which accounts can send or receive a TIP-20 token with a transfer policy.
- [Distribute Token Rewards](/tempo/guides/token-rewards): Distribute rewards to TIP-20 holders and let them claim their share on Tempo.
- [Access Keys](/tempo/guides/access-keys/): Delegate signing to a secondary key with access keys, with spending limits, scopes, admin keys, and signature verification.
- [Authorize Access Keys](/tempo/guides/access-keys/authorize): Authorize an access key to sign transactions on behalf of an account, and defer authorization to a transaction.
- [Set Permissions & Limits](/tempo/guides/access-keys/permissions): Restrict an access key with an expiry, per-token spending limits, recurring limits, and call scopes.
- [Manage Access Keys](/tempo/guides/access-keys/manage): Update spending limits, revoke access keys, and inspect their onchain metadata and remaining limits.
- [Admin Access Keys](/tempo/guides/access-keys/admin): Authorize unrestricted admin access keys that can manage an account's other keys, and check admin status.
- [Witnesses](/tempo/guides/access-keys/witnesses): Bind a witness to a key authorization and burn it to revoke signed-but-not-yet-submitted authorizations.
- [Verify Signatures](/tempo/guides/access-keys/verify): Verify that a keychain signature was produced by an active access key for the expected account.
- [Stablecoin Exchange](/tempo/guides/stablecoin-exchange/): Trade stablecoins on Tempo's enshrined DEX, manage orders and balances, create trading pairs, and provide Fee AMM liquidity.
- [Swap Stablecoins](/tempo/guides/stablecoin-exchange/swap): Quote and swap one USD-denominated TIP-20 stablecoin for another on Tempo's enshrined DEX.
- [Place & Manage Orders](/tempo/guides/stablecoin-exchange/orders): Place limit and flip orders on Tempo's Stablecoin DEX, then read, inspect, and cancel them.
- [Manage Exchange Balances](/tempo/guides/stablecoin-exchange/balances): Read your internal Stablecoin DEX balances and withdraw them back to your Tempo wallet.
- [Create a Trading Pair](/tempo/guides/stablecoin-exchange/create-pair): Create a new trading pair on Tempo's Stablecoin DEX and configure a token's quote token.
- [Provide Fee AMM Liquidity](/tempo/guides/stablecoin-exchange/fee-amm-liquidity): Add and remove liquidity in Tempo's Fee AMM so stablecoin fee conversions can settle.
- [Virtual Addresses](/tempo/guides/virtual-addresses/): Register a master address and accept TIP-20 deposits at unlimited virtual addresses that forward to you without sweeps.
- [Register a Master Address](/tempo/guides/virtual-addresses/register): Mine a TIP-1022 proof-of-work salt and register a master address for virtual-address deposit forwarding.
- [Resolve & Accept Payments](/tempo/guides/virtual-addresses/resolve): Derive per-customer virtual deposit addresses offchain and resolve them to your master wallet.
- [Receive Policies](/tempo/guides/receive-policies/): Control who can pay you on Tempo with receive policies, validate inbound transfers, and recover blocked funds.
- [Set a Receive Policy](/tempo/guides/receive-policies/set): Set and read an account's receive policy to control which senders and tokens it accepts.
- [Validate Transfers](/tempo/guides/receive-policies/validate): Check whether a TIP-20 transfer would be accepted by a recipient's receive policy before sending it.
- [Handle Blocked Funds](/tempo/guides/receive-policies/blocked): Read, claim, and burn TIP-20 funds that a receive policy blocked from being credited.
- [Payment Channels](/tempo/guides/payment-channels/): Open funded TIP-20 channels on Tempo, stream off-chain vouchers, and settle or close to move funds onchain.
- [Open & Fund a Channel](/tempo/guides/payment-channels/open): Open and fund a TIP-20 payment channel on Tempo, top it up, and read its onchain state.
- [Send & Settle Vouchers](/tempo/guides/payment-channels/vouchers): Sign off-chain TIP-20 channel vouchers as the payer and settle them onchain as the payee.
- [Close & Withdraw](/tempo/guides/payment-channels/close): Close a TIP-20 payment channel from either side and withdraw the remaining deposit on Tempo.
- [Private Zones](/tempo/guides/zones/): Connect to private Tempo Zones, deposit funds into them, and withdraw back to Tempo Mainnet.
- [Connect to a Zone](/tempo/guides/zones/connect): Connect a Viem client to a private Tempo Zone and authenticate with an authorization token.
- [Deposit to a Zone](/tempo/guides/zones/deposit): Deposit TIP-20 stablecoins from Tempo Mainnet into a private Tempo Zone.
- [Withdraw from a Zone](/tempo/guides/zones/withdraw): Withdraw TIP-20 stablecoins from a private Tempo Zone back to Tempo Mainnet.
- [Accounts](/tempo/accounts/)
- [Account.fromSecp256k1](/tempo/accounts/account.fromSecp256k1)
- [Account.fromP256](/tempo/accounts/account.fromP256)
- [Account.fromWebAuthnP256](/tempo/accounts/account.fromWebAuthnP256)
- [Account.fromWebCryptoP256](/tempo/accounts/account.fromWebCryptoP256)
- [Overview](/tempo/actions/)
- [accessKey.authorize](/tempo/actions/accessKey.authorize)
- [accessKey.burnWitness](/tempo/actions/accessKey.burnWitness)
- [accessKey.getMetadata](/tempo/actions/accessKey.getMetadata)
- [accessKey.getRemainingLimit](/tempo/actions/accessKey.getRemainingLimit)
- [accessKey.isAdmin](/tempo/actions/accessKey.isAdmin)
- [accessKey.isWitnessBurned](/tempo/actions/accessKey.isWitnessBurned)
- [accessKey.revoke](/tempo/actions/accessKey.revoke)
- [accessKey.signAuthorization](/tempo/actions/accessKey.signAuthorization)
- [accessKey.updateLimit](/tempo/actions/accessKey.updateLimit)
- [accessKey.verifyHash](/tempo/actions/accessKey.verifyHash)
- [accessKey.watchAdminAuthorized](/tempo/actions/accessKey.watchAdminAuthorized)
- [accessKey.watchWitness](/tempo/actions/accessKey.watchWitness)
- [accessKey.watchWitnessBurned](/tempo/actions/accessKey.watchWitnessBurned)
- [amm.burn](/tempo/actions/amm.burn)
- [amm.getLiquidityBalance](/tempo/actions/amm.getLiquidityBalance)
- [amm.getPool](/tempo/actions/amm.getPool)
- [amm.mint](/tempo/actions/amm.mint)
- [amm.rebalanceSwap](/tempo/actions/amm.rebalanceSwap)
- [amm.watchBurn](/tempo/actions/amm.watchBurn)
- [amm.watchMint](/tempo/actions/amm.watchMint)
- [amm.watchRebalanceSwap](/tempo/actions/amm.watchRebalanceSwap)
- [channel.close](/tempo/actions/channel.close)
- [channel.getStates](/tempo/actions/channel.getStates)
- [channel.open](/tempo/actions/channel.open)
- [channel.requestClose](/tempo/actions/channel.requestClose)
- [channel.settle](/tempo/actions/channel.settle)
- [channel.signVoucher](/tempo/actions/channel.signVoucher)
- [channel.topUp](/tempo/actions/channel.topUp)
- [channel.withdraw](/tempo/actions/channel.withdraw)
- [fee.getUserToken](/tempo/actions/fee.getUserToken)
- [fee.setUserToken](/tempo/actions/fee.setUserToken)
- [fee.watchSetUserToken](/tempo/actions/fee.watchSetUserToken)
- [nonce.getNonce](/tempo/actions/nonce.getNonce)
- [nonce.watchNonceIncremented](/tempo/actions/nonce.watchNonceIncremented)
- [policy.create](/tempo/actions/policy.create)
- [policy.getData](/tempo/actions/policy.getData)
- [policy.isAuthorized](/tempo/actions/policy.isAuthorized)
- [policy.modifyBlacklist](/tempo/actions/policy.modifyBlacklist)
- [policy.modifyWhitelist](/tempo/actions/policy.modifyWhitelist)
- [policy.setAdmin](/tempo/actions/policy.setAdmin)
- [policy.watchAdminUpdated](/tempo/actions/policy.watchAdminUpdated)
- [policy.watchBlacklistUpdated](/tempo/actions/policy.watchBlacklistUpdated)
- [policy.watchCreate](/tempo/actions/policy.watchCreate)
- [policy.watchWhitelistUpdated](/tempo/actions/policy.watchWhitelistUpdated)
- [receivePolicy.burn](/tempo/actions/receivePolicy.burn)
- [receivePolicy.claim](/tempo/actions/receivePolicy.claim)
- [receivePolicy.get](/tempo/actions/receivePolicy.get)
- [receivePolicy.getBlockedBalance](/tempo/actions/receivePolicy.getBlockedBalance)
- [receivePolicy.set](/tempo/actions/receivePolicy.set)
- [receivePolicy.validate](/tempo/actions/receivePolicy.validate)
- [receivePolicy.watchBlocked](/tempo/actions/receivePolicy.watchBlocked)
- [receivePolicy.watchBurned](/tempo/actions/receivePolicy.watchBurned)
- [receivePolicy.watchClaimed](/tempo/actions/receivePolicy.watchClaimed)
- [receivePolicy.watchUpdated](/tempo/actions/receivePolicy.watchUpdated)
- [faucet.fund](/tempo/actions/faucet.fund)
- [reward.claim](/tempo/actions/reward.claim)
- [reward.distribute](/tempo/actions/reward.distribute)
- [reward.getGlobalRewardPerToken](/tempo/actions/reward.getGlobalRewardPerToken)
- [reward.getPendingRewards](/tempo/actions/reward.getPendingRewards)
- [reward.getUserRewardInfo](/tempo/actions/reward.getUserRewardInfo)
- [reward.setRecipient](/tempo/actions/reward.setRecipient)
- [reward.watchRewardDistributed](/tempo/actions/reward.watchRewardDistributed)
- [reward.watchRewardRecipientSet](/tempo/actions/reward.watchRewardRecipientSet)
- [simulate.simulateBlocks](/tempo/actions/simulate.simulateBlocks)
- [simulate.simulateCalls](/tempo/actions/simulate.simulateCalls)
- [dex.buy](/tempo/actions/dex.buy)
- [dex.cancel](/tempo/actions/dex.cancel)
- [dex.cancelStale](/tempo/actions/dex.cancelStale)
- [dex.createPair](/tempo/actions/dex.createPair)
- [dex.getBalance](/tempo/actions/dex.getBalance)
- [dex.getBuyQuote](/tempo/actions/dex.getBuyQuote)
- [dex.getOrder](/tempo/actions/dex.getOrder)
- [dex.getTickLevel](/tempo/actions/dex.getTickLevel)
- [dex.getSellQuote](/tempo/actions/dex.getSellQuote)
- [dex.place](/tempo/actions/dex.place)
- [dex.placeFlip](/tempo/actions/dex.placeFlip)
- [dex.sell](/tempo/actions/dex.sell)
- [dex.watchFlipOrderPlaced](/tempo/actions/dex.watchFlipOrderPlaced)
- [dex.watchOrderCancelled](/tempo/actions/dex.watchOrderCancelled)
- [dex.watchOrderFilled](/tempo/actions/dex.watchOrderFilled)
- [dex.watchOrderPlaced](/tempo/actions/dex.watchOrderPlaced)
- [dex.withdraw](/tempo/actions/dex.withdraw)
- [token.approve](/tempo/actions/token.approve)
- [token.burn](/tempo/actions/token.burn)
- [token.burnBlocked](/tempo/actions/token.burnBlocked)
- [token.changeTransferPolicy](/tempo/actions/token.changeTransferPolicy)
- [token.create](/tempo/actions/token.create)
- [token.getAllowance](/tempo/actions/token.getAllowance)
- [token.getBalance](/tempo/actions/token.getBalance)
- [token.getMetadata](/tempo/actions/token.getMetadata)
- [token.grantRoles](/tempo/actions/token.grantRoles)
- [token.hasRole](/tempo/actions/token.hasRole)
- [token.mint](/tempo/actions/token.mint)
- [token.pause](/tempo/actions/token.pause)
- [token.renounceRoles](/tempo/actions/token.renounceRoles)
- [token.revokeRoles](/tempo/actions/token.revokeRoles)
- [token.setRoleAdmin](/tempo/actions/token.setRoleAdmin)
- [token.setSupplyCap](/tempo/actions/token.setSupplyCap)
- [token.transfer](/tempo/actions/token.transfer)
- [token.unpause](/tempo/actions/token.unpause)
- [token.watchAdminRole](/tempo/actions/token.watchAdminRole)
- [token.watchApprove](/tempo/actions/token.watchApprove)
- [token.watchBurn](/tempo/actions/token.watchBurn)
- [token.watchCreate](/tempo/actions/token.watchCreate)
- [token.watchMint](/tempo/actions/token.watchMint)
- [token.watchRole](/tempo/actions/token.watchRole)
- [token.watchTransfer](/tempo/actions/token.watchTransfer)
- [validator.add](/tempo/actions/validator.add)
- [validator.changeOwner](/tempo/actions/validator.changeOwner)
- [validator.changeStatus](/tempo/actions/validator.changeStatus)
- [validator.get](/tempo/actions/validator.get)
- [validator.getByIndex](/tempo/actions/validator.getByIndex)
- [validator.getCount](/tempo/actions/validator.getCount)
- [validator.getNextFullDkgCeremony](/tempo/actions/validator.getNextFullDkgCeremony)
- [validator.getOwner](/tempo/actions/validator.getOwner)
- [validator.list](/tempo/actions/validator.list)
- [validator.setNextFullDkgCeremony](/tempo/actions/validator.setNextFullDkgCeremony)
- [validator.update](/tempo/actions/validator.update)
- [virtualAddress.getMasterAddress](/tempo/actions/virtualAddress.getMasterAddress)
- [virtualAddress.registerMaster](/tempo/actions/virtualAddress.registerMaster)
- [virtualAddress.resolve](/tempo/actions/virtualAddress.resolve)
- [wallet.deposit](/tempo/actions/wallet.deposit)
- [wallet.transfer](/tempo/actions/wallet.transfer)
- [wallet.swap](/tempo/actions/wallet.swap)
- [zone.deposit](/tempo/actions/zone.deposit)
- [zone.encryptedDeposit](/tempo/actions/zone.encryptedDeposit)
- [zone.getAuthorizationTokenInfo](/tempo/actions/zone.getAuthorizationTokenInfo)
- [zone.getDepositStatus](/tempo/actions/zone.getDepositStatus)
- [zone.getWithdrawalFee](/tempo/actions/zone.getWithdrawalFee)
- [zone.getZoneInfo](/tempo/actions/zone.getZoneInfo)
- [zone.requestVerifiableWithdrawal](/tempo/actions/zone.requestVerifiableWithdrawal)
- [zone.requestWithdrawal](/tempo/actions/zone.requestWithdrawal)
- [zone.signAuthorizationToken](/tempo/actions/zone.signAuthorizationToken)
- [withRelay](/tempo/transports/withRelay)
- [TempoAddress.format](/tempo/utilities/TempoAddress.format)
- [TempoAddress.parse](/tempo/utilities/TempoAddress.parse)
- [TempoAddress.validate](/tempo/utilities/TempoAddress.validate)
- [Storage.defaultStorage](/tempo/utilities/Storage.defaultStorage)
- [Storage.from](/tempo/utilities/Storage.from)
- [Storage.memory](/tempo/utilities/Storage.memory)
- [Storage.session](/tempo/utilities/Storage.session)
- [Client](/zksync/client): Setting up your ZKsync Viem Client
- [Chains](/zksync/chains)
- [toSinglesigSmartAccount (ZKsync)](/zksync/accounts/toSinglesigSmartAccount): Creates a single-signature ZKsync Smart Account
- [toMultisigSmartAccount (ZKsync)](/zksync/accounts/toMultisigSmartAccount): Creates a multi-signature ZKsync Smart Account
- [toSmartAccount (ZKsync)](/zksync/accounts/toSmartAccount): Creates a ZKsync Smart Account
- [deployContract](/zksync/actions/deployContract): Deploys a contract to the network, given bytecode & constructor arguments by using EIP712 transaction.
- [sendTransaction](/zksync/actions/sendTransaction): Creates, signs, and sends a new transaction to the network, with EIP712 transaction support.
- [signTransaction](/zksync/actions/signTransaction): Signs a transaction, with EIP712 transaction support.
- [writeContract](/zksync/actions/writeContract): Executes a write function on a contract, with EIP712 transaction support.
- [estimateGasL1ToL2](/zksync/actions/estimateGasL1ToL2): Returns an estimated gas for L1 to L2 execution.
- [getBlockDetails](/zksync/actions/getBlockDetails): Returns additional ZKsync-specific information about the L2 block.
- [getBridgehubContractAddress](/zksync/actions/getBridgehubContractAddress): Returns the Bridgehub smart contract address.
- [getDefaultBridgeAddresses](/zksync/actions/getDefaultBridgeAddress): Returns the addresses of the default ZKsync Era bridge contracts on both L1 and L2.
- [getGasPerPubData](/zksync/actions/getGasPerPubData): Returns the scaled gas per pubdata limit for the currently open batch.
- [getL1BatchDetails](/zksync/actions/getL1BatchDetails): Returns data pertaining to a given batch.
- [getL1BatchBlockRange](/zksync/actions/getL1BatchBlockRange): Returns the range of blocks contained within a batch given by batch number.
- [getL1BatchNumber](/zksync/actions/getL1BatchNumber): Returns the latest L1 batch number.
- [getL1TokenAddress](/zksync/actions/getL1TokenAddress): Returns the L1 token address equivalent for a L2 token address as they are not equal.
- [getL2TokenAddress](/zksync/actions/getL2TokenAddress): Returns the L2 token address equivalent for a L1 token address as they are not equal.
- [getLogProof](/zksync/actions/getLogProof): Given a transaction hash, and an index of the L2 to L1 log produced within the transaction, it returns the proof for the corresponding L2 to L1 log.
- [getTransactionDetails](/zksync/actions/getTransactionDetails): Returns data from a specific transaction given by the transaction hash.
- [estimateFee](/zksync/actions/estimateFee): Returns an estimated Fee for requested transaction.
- [getAllBalances](/zksync/actions/getAllBalances): Returns all known balances for a given account.
- [getBaseTokenL1Address](/zksync/actions/getBaseTokenL1Address): Returns the base token L1 address.
- [getL1ChainId](/zksync/actions/getL1ChainId): Returns the Chain Id of underlying L1 network.
- [getMainContractAddress](/zksync/actions/getMainContractAddress): Returns the address of a Main ZKsync Contract.
- [getRawBlockTransaction](/zksync/actions/getRawBlockTransactions): Returns data of transactions in a block.
- [getTestnetPaymasterAddress (depreated)](/zksync/actions/getTestnetPaymasterAddress): Returns the address of a Paymaster on a Testnet.
- [getL1Allowance](/zksync/actions/getL1Allowance): Determines the amount of approved tokens for a specific L1 bridge.
- [getL1Balance](/zksync/actions/getL1Balance): Returns the amount of the token held by the account on the L1 network.
- [getL1TokenBalance](/zksync/actions/getL1TokenBalance): Retrieve the token balance held by the contract on L1.
- [isWithdrawalFinalized](/zksync/actions/isWithdrawalFinalized): Returns whether the withdrawal transaction is finalized on the L1 network.
- [withdraw](/zksync/actions/withdraw): Initiates the withdrawal process which withdraws ETH or any ERC20 token from the associated account on L2 network to the target account on L1 network.
- [requestExecute](/zksync/actions/requestExecute): Requests execution of a L2 transaction from L1.
- [finalizeWithdrawal](/zksync/actions/finalizeWithdrawal): Proves the inclusion of the `L2->L1` withdrawal message.
- [deposit](/zksync/actions/deposit): Transfers the specified token from the associated account on the L1 network to the target account on the L2 network.
- [claimFailedDeposit](/zksync/actions/claimFailedDeposit): Withdraws funds from the initiated deposit, which failed when finalizing on L2.
- [getApprovalBasedPaymasterInput](/zksync/utilities/paymaster/getApprovalBasedPaymasterInput): Returns encoded formatted approval-based paymaster params.
- [getGeneralPaymasterInput](/zksync/utilities/paymaster/getGeneralPaymasterInput): Returns encoded formatted general-based paymaster params.
- [getL2HashFromPriorityOp](/zksync/utilities/bridge/getL2HashFromPriorityOp): Returns the hash of the L2 priority operation from a given L1 transaction receipt.
- [parseEip712Transaction](/zksync/utilities/parseEip712Transaction): Parse EIP712 transaction.
- [Viem · TypeScript Interface for Ethereum](/index)
- [Client](/experimental/client): Setting up your Viem Client
- [ZKsync](/docs/chains/zksync): Integrating with ZKsync in Viem
- [defineKzg](/docs/utilities/defineKzg): Defines a KZG interface.
- [fromBase58](/docs/utilities/fromBase58)
- [fromBase64](/docs/utilities/fromBase64)
- [toBase58](/docs/utilities/toBase58)
- [toBase64](/docs/utilities/toBase64)
- [opaqueDataToDepositData](/op-stack/utilities/fromOpaqueData): Decodes opaque deposit data found in the "TransactionDeposited" event log.
- [fee.validateToken](/tempo/actions/fee.validateToken)
- [Setup](/tempo/actions/setup)
- [withFeePayer](/tempo/transports/withFeePayer)
- [TODO](/account-abstraction/actions/bundler/introduction)
- [verifyHash](/docs/actions/public/verifyHash): Verifies if a signed hash was generated by the provided address.
-->

# watchPendingTransactions

Watches and returns pending transaction hashes.

This Action will batch up all the pending transactions found within the [`pollingInterval`](#pollinginterval-optional), and invoke them via [`onTransactions`](#ontransactions).

## Usage

:::code-group

```ts twoslash [example.ts]
// @twoslash-cache: {"v":2,"hash":"690a8c517f857c9fa52dada28c89b10adc9def6d089a4b5eb01e5dcbf1802078","data":"N4Igdg9gJgpgziAXAbVAFwJ4AcZJACwgDcYAnEAGhDRgA808AKAQwBsBLZuASgAIBjCGDhpeWAK4AjDvwDCHGGDSJewADpheW3s36DxSlQdgAzdmBhQA3Bu29JzNP3wB+Fes13tAW3Gs07PxsrG72EBCsMMyaAD68AAqkMGgBJhgAPACyfgFBrKwAQo7OAPJYAUJwAHy8ccYwZhbWttoAvrW89Y2WNp5aQc4wACrs3jAqYOLekmS9dnrsWABKUVChJmxwMB0eXtpJAI7i8GihjFjMpMxjNKRwKrL8iytHJ/GX18lkPLwAvDWJCDedhbdKPZ4wV4iFZocSkMBDbAwKpzNodLrmHotfr4ZjmdzYrzSCD8ADWAFFaFhWBAkncCX09vtVkJWBheKZmDkGUzebwkswoKz2WBPio1CByWh8N8gmAJai+V4BUKwGzOqRWOKCCksPcAPT65Iyu5ygB07AgCsJSq0KuFOiw7AAqprtfhdQb9cwnWbjbLohaIN6ndbGbzWoqvJGbdozfHeABGABsvG8tO28bNUbsJFI7DSAAkuK4HrjzAA1MgFjDFuD4ABisU6YFMmOajJjjKzvGTAA40xneFmo3QaK2VOlBMJRPwFEpeGPFFA4KpY1oR4T2gAyXiU3Rod6kAJsdJZqpVRgmMAqRhz9iKZS8eQPpRn+NVPj/ATztBfmovo+75miiGitBooxYLSogSNIgSAUolAgCIlwMIgACcVCRGAADm0pIImABMVBoJcOHJHgsEyAhDBYZiSAAAxUM4Hz8LcSDoa0FDoEieCEHmSE0PQeDTiILYAO7FPgKgAOpSfEy7mDhQxXMIB6WsIMJwgivFUChx5IAALAA7Fhih4fgSCmdQZEUYgIAGJJTiWXRFhIMRIAsVcbFkEgyZcTxOB8cQvkkWOTBsJwPyiTBUjUb+PLaLo+iGC2bZNFGDjOaEuxMr4/iBMEoSSOEkTRB0iTJKkGTZAVeSFFJZQVMINR1K2DTtlG7RtelWKMgMMojGMExTDMpBRgsyyrOsmzbHEuV7IcxwiGcFxXDc3wPE8U1QoeHwbXc/4JKQQIgjAYLbS8y1oFp8KIjgoGdui7XdB28zljea7htoxJkpS1IZvSX22vyLJquynLcsDIPMoKDqisNvASlKJpwHKYYw7DqrqnCWpIzqaB6oghr+qagaWhjmOg3D4OOi6br4x6hNej67B+tKAZgEGIbsJTSpdhGOZxgmKaDkkw7xkLWh5jWdals+H1VvmRYlk2z29W9bRRj2/Zi5mkuEkuE68FOlSzr+i70Muq4LV4m5Pbu+5sUeJ6sMBF5Xp9d4Jc+v7u0d96PkdNHu704FgJB0FiHF8G/kh+loQArNZ2EWQRHmkaQ5FoSAVGx6+tEgBwbmIB5XkHr5iApgF1C8fZ/GhdQ4X2ecJ04MeGB8E5zgKa2SkqdEcDqZUt5kfcvByc5vdQP3qlD2xGlwEeny3HA6SFrqA/CFBx7pBiTQULwGysFsF5HZPPeKbhW/z81cC3TpQVUEK/AIPZF8yqu0RQKDsLwquOA+64V4GgOew9NC4nrPAM0GgNAAFpeAABESTjyZkTQ0RAHzeDNPWfUL84DegXpUfUed+D6m7vgaes9B7gLgPA3gAApAAyiUAAcnApY8RZC8EyMaaA9wWgIJkjKTQAADKC+QVCgOOKIwkCDZDBFXMgURxoAD6FhxJUOvmAohYAGzsH8GQURABdRgaCvSkxgFMM0tIcJGjAHgmAJAaTtwIfgnmBCABWcAhBwNIFgMhABiNRGjAEz1wqAmhuizCGNIHwNAEBeDmHYK7dgAAvbYHMj4GNuDAxk8jFG8GUWo7O+jYmyFxLheAJizGemJkaDmSRrG2PsY45xEBXF4JQR4/U3jfH+KCSU5IZTbgVOiORH4QgdBiAiMXHCSSlBkCIGwPJWghEiN4OI2ZKhj5bFEbwXcMkYCSCYSSUkyReA3x3mgQ+4gthfwnsc05ZILlwCkGjfM5QNK8EwcwIpKjpSqLeZID57AZg1PMfU/BZo2CDG8BgM0ghvD6iSCYMgih+AwAafgOBwLQUzDgRIjAOEhB8G/iAmUmyJQaK0cpHRd8JT7KcY+M0glmA4TfsgZAIAkjeEuKSBAVAhj4BBLwAAgro3g4kDGsHsFJToWAdD5ApdsMJSkQH0sXkfCAxgpUpJFZoLJyiJFzIAJKLNIMs1gEK6kYKwTg/AXTX6ELviQmOZCKG0pvrQwJJqlLmFuFauBHTmpsG4Ifcl5giAQHOSq7wPzOD/KEN63RcAbXM3qZgmA2DcHuNoW6uCHr5JXzpVEu+gShCRLUqm7grLjEUG5Wta4SEx68AQcAAAAsXUkE9i1ANLdWu+y8DpwFaCAet3Kkh/2EEhMVR8DCSulI4AQ5UZgLOjecn+CTeAiA6VKqS6qTC0l4BosQJaNVlu+ZAz+ZpVBdvMD2j+XrNWVAfvdGAY6J0gDoNcakuAqCR2PKoAQAoaDxHdTRQ+aDeDtBMCdeNAByLN3gEMQW8Nc4DfLzAWFELB+DvAkNYP1CxcwcBUPyjADFH8Bc/ggaiGBiDv5GC5RI59LDYAcMUBaFWuA1yVBoMYOGsC3ANBUccvK34OhJIpOoyyz1JaU132Yy0ZNL7hC3mvfAAOlQIgwDNDSHCZiSxaa42AVo3Bx31uQpnNCxkmJF3MvhUuhkSK2RzvJ/tinF5IWLrgUuzFcTeXYqXTi3Fa5BXriFcgYVhItywG3MgmA+CqcvSPXgJQERqbgE2JC+C8DCu2PVBwZIQGJPqlKjZp6eO0J0OLJImL2AkCgKyvSNn072dTk5xMLmbJZzsiAFLg7vOuT8wAZgC6xYLhka6YAiwQKLglm4gHOPtL4cTeCafHhlrzlRh1rfjm1quo3kxmQiZZRAJ3evZz4sZwVRd6KIHG55QLFdyClwYjNuu82BIxZzgjeAFxMUCB05EDQyzSDA+ELph4IP/0gDy/ZArmzRK6f2emKAfhVUnUwbAB5cBIKRA5Mc8QOEcLqpR4TpdohRX4+BKwS4pWVUaAYcwZZTD+CfNnLDtMMAWIRzgPG+LxB2CwB/pIdk4ljn2BOuJLYdw8kaCR+jzHltrmrjQOJRJvHecFkCMD9DQhHwCIowAKnFZs2QsP9lzi4KuaV0oefSn4Tu8QzgdCrlERTvTBnBOiMPp72HfpSAnVIL7nQrZkeB8kvCMPVOV2aDXXcywjPxL5hoIz6I7JWHQD094ndoCojYI0GbudOEaQOFlQHqHkR9mkdIpRwrQgzA4ThMn7dqeUmZMScak6mK4BwBwWgIU4g0DpvQfqSAsBvE2Kzk6gh9OaAiDgUQQihkzS0B5iQ3v8AB8em8KwX12/+8iGH3+cPUANA95JDvwfsBg9j69JPmA0+WnuIXycZfq/1+b6F333faB99D9r9j8h8yA4lb0kcy8IAK9I9q8YBrdV1tgk8f57dCAR8kkDdjx1UslREn9EAvc0doBMcFcwBVETcTc5J4QlJyDVEVBIDy82BIcfFCdoDPFec0AENVwbhCAVxattgLB9UyAmCQRxw0A2QNA4AMBKN8ATpIA7leAOBY0slJAZc5dxV4hTV1cZR2QkgthphIhD5IAIdLhMltDhCRBHxxDRRJDpDZCdVVxFDthgheAIBGleBs9YAzQ88RABRvAB9eAmEYBTDthlFIB08plf8d9eBTV9QSgH96kn8X9Z839HAP8V818N9WYt9gD/9ADmA4EwiYBg0wBCUj84A4FLQ+Aj1SANB0xxZzBqi+VmoSD9x0NCc7lsDKUoCYCq9mD4DEBYEwBRFhjvFRNA8fcEMZR8hElNdNQoAENuBehDRjoA1UEYBpipVaRWAoBD5t0T8dU0Axi4D9MIBDNJj1iaReAABSMjQ+BDWY7YhYpY/UFYpQNYjYh4nYxnfYkfI4vooPEPRgU9ckYPWkRgBDYRcIPUQ+Hxbg9VBwH+XELAQBSwBYxYjQZYxIVYxcUEiHMYfvdlJwiPFCErSJIHPY0A4PAYhxF4rQEEkPWSQgDpOAGEoEY0eEwUDbH0FEi/GkrwZdZAJxNgYxRAROKuRODE2kpKUQdnTnM0UgAwc1YVEES3RZegXgIEnPRAIgbwI7QiKuPsETPkuwZdEoSQNgtieUxUhEEVOAVUoSUQTU2AbU3U0bBidCR7Q0yU/k0QPAgNMgUUVgbIv/I0WgXnEfDSRAYyYyKudCb0k00QQUq1YxOBVPbksgC7UuQieM6UxcK1WUxYR0v0i1QM4MnfUM8M5qKM5MC7BiI05YhMk9LU/0+ENgfUdjI0K1IFUBJSUuUbR7QYqjf7WjCEmVXgJYaA0jIQBDXoL3M0aPMARgURRBcZIQgAEmAH+1aAAEIkFVzSBtzRF0S+SsS3iVAVyqkIcZIxyJzJApywBdyLzyIDzditdKSaihjhjBjWi/1Oh8dgEcDVS+jrd6d+9qSNBhjRFRjKMzYXD0DJNs4mEC9rhTkxhCBxJBNZzYKwDaNELkLvBUKYB0LMK/jRB4UgLdNaNT05yKLIhGADjD4wDjzaiMBaLvdTjwSpjLjPinjvTTy0B3juKtivjt0DiWK2KTiziuLEkbiEM7ieLjzMT8wzyNsLiZjhLXy4LDiwByLA8wCwTgTcTwTITmTWS4TgEESuTkTFBUTuBFKXj+Lx5kB6TaRGSoSWSd02TpQOTET0ymh61GcwDBzYLhzJNRzlVbz7yZzxKo9LhFzlz9zeANytzHz9zDz7LXiBLzzErryIrJyocHy9zLztzNKgrPzRE2UOUkAuVkIgikJkAfE4RMVTFIVDQydpQpBEUgQJ8c9vEerYB9RiRJB9R0jv8OBhq5zvELNjErME4CJDJLtOtztrJM5rt7IvcfMHsnty4fI3s3TPs5sG5osm5YtltuDoA+AJKfd8Sh5yJQhM9D4swQ0NI2Bh1x5M9kBjFuAVBo0RcNSABqRMFwvMGkQUCzZ+FBPARyxnURH40fPVB3DRXzW9WqAIX8siKYI3ePewVVW3SwQ+VApnMAMwO4UQZA93FVMQfMPlUgdkG6wk8/JVWVQUGeUNWVcmrgF3EFAIWEZqMHNgZaHdUYAxBnbdHvANEwRgUbbgMfepPlMAYyGfOxYucQDfeWwlQkgheW0bLfCWs0UbM0PfVgI0xgLJDGsYN4vgpmsQPGrdbvURCM1gM0RoxwX3Fq21fq5/AfV/bpd/JfUazIp0fUR2w2gAg/R2l2tASOuBMeOykgyC6CqjFKUQSTROLC44iY5OlQK4+Yw+ZOjKxylQLO3gROTSuGv43TSS8ErOuS4HAwP8Z4zK8eYu0u74ofMS8qwYwIkIh2gIJ2yOt22pDNQ0RI725I321I/2r/QO9gYOvu0OwAiO2kJo6O2O7VPEocBo5exwDSFrGyKqlAblf8zFJCIgBiM0RMC+hiBiSzVrVCAiROHrJapAJ7Va/rAzTakubal7Xal+vsA6vzb7RuB0pgJtA6PgTbFQbbLLPbdiO+gycUvsU7NOC7VzPrHOTbT+sbCbILSuQyQiABvAUiHCJCf7PAD++BtCRMOzZBpzezEB+yGoZABDBiWgLMWulhth+MDh1h9h4xNQcQa+xMEwJhzh9hu43h7h/hwRhiYR0RyRs0HhrhxRiR5R2urMYxLBvyHB17RiVoKzQQWAPAQDUQYAaOQtGiGDI+fDBDM0YjX8cjUiiSCTcx+KAuecvtcJAdW+ReRgXgZY5Abcwx7YI9fgO5DCdCfhzwMxwbHxtLTbP4GoOcn3TbPgcOI0pCG4ZgJAUAI2fHIQIhhAVoVoIAA==="}
import { publicClient } from './client'

const unwatch = publicClient.watchPendingTransactions( // [!code focus:99]
  { onTransactions: hashes => console.log(hashes) }
)
// @log: > ['0x...', '0x...', '0x...']
// @log: > ['0x...', '0x...']
// @log: > ['0x...', '0x...', '0x...', ...]
```

```ts twoslash [client.ts] filename="client.ts"
// @twoslash-cache: {"v":2,"hash":"577792133a9967accac50a843d8303e77374676885f2bcb57ea8c47a16ff755b","data":"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"}
import { createPublicClient, http } from 'viem'
import { mainnet } from 'viem/chains'

export const publicClient = createPublicClient({
  chain: mainnet,
  transport: http()
})
```

:::

## Returns

`UnwatchFn`

A function that can be invoked to stop watching for new pending transaction hashes.

## Parameters

### onTransactions

* **Type:** `(hashes: '0x${string}'[]) => void`

The new pending transaction hashes.

```ts twoslash
// @twoslash-cache: {"v":2,"hash":"7e3d0d13aafacd558cbc3f07f951df2583aac90b198892e31c7ac72c93895da8","data":"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="}
// [!include ~/snippets/publicClient.ts]
// ---cut---
const unwatch = publicClient.watchPendingTransactions(
  { onTransactions: hashes => console.log(hashes) } // [!code focus:1]
)
```

### batch (optional)

* **Type:** `boolean`
* **Default:** `true`

Whether or not to batch the transaction hashes between polling intervals.

```ts twoslash
// @twoslash-cache: {"v":2,"hash":"40120c3454270df3bb30e171b9b0668400e671a779e49a2a66b5d806642ffc27","data":"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="}
// [!include ~/snippets/publicClient.ts]
// ---cut---
const unwatch = publicClient.watchPendingTransactions(
  { 
    batch: false, // [!code focus]
    onTransactions: hashes => console.log(hashes),
  }
)
```

### onError (optional)

* **Type:** `(error: Error) => void`

Error thrown from listening for new pending transactions.

```ts twoslash
// @twoslash-cache: {"v":2,"hash":"0ad6738a0f6db8cc674881e40b4b28905c98b41e4886ee5ffb06ff5334f552d6","data":"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="}
// [!include ~/snippets/publicClient.ts]
// ---cut---
// @noErrors
const unwatch = publicClient.watchPendingTransactions(
  { 
    onError: error => console.log(error), // [!code focus:1]
    onTransactions: hashes => console.log(hashes),
  }
)
```

### poll (optional)

* **Type:** `boolean`
* **Default:** `false` for WebSocket Clients, `true` for non-WebSocket Clients

Whether or not to use a polling mechanism to check for new pending transactions instead of a WebSocket subscription.

This option is only configurable for Clients with a [WebSocket Transport](/docs/clients/transports/websocket).

```ts twoslash
// @twoslash-cache: {"v":2,"hash":"823561170f7a8a326026fcbb0243c8b1cce30e0ba7475ba56b7a5f03499786de","data":"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="}
import { createPublicClient, webSocket } from 'viem'
import { mainnet } from 'viem/chains'

const publicClient = createPublicClient({
  chain: mainnet,
  transport: webSocket()
})

const unwatch = publicClient.watchPendingTransactions(
  { 
    onTransactions: transactions => console.log(transactions),
    poll: true, // [!code focus]
  }
)
```

### pollingInterval (optional)

* **Type:** `number`

Polling frequency (in ms). Defaults to the Client's `pollingInterval` config.

```ts twoslash
// @twoslash-cache: {"v":2,"hash":"44763a4d1aa1aed87d1e71b41e50a5ef4e377482358cf19f7c2408e0b20ec851","data":"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="}
// [!include ~/snippets/publicClient.ts]
// ---cut---
// @noErrors
const unwatch = publicClient.watchPendingTransactions(
  { 
    pollingInterval: 1_000, // [!code focus]
    onTransactions: hashes => console.log(hashes),
  }
)
```

## JSON-RPC Methods

* When `poll: true`
  * Calls [`eth_newPendingTransactionFilter`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_newpendingtransactionfilter) to initialize the filter.
  * Calls [`eth_getFilterChanges`](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_getFilterChanges) on a polling interval.
* When `poll: false` & WebSocket Transport, uses a WebSocket subscription via [`eth_subscribe`](https://docs.alchemy.com/reference/eth-subscribe-polygon) and the `"newPendingTransactions"` event.