JUMP TO👋 IntroductionAlchemy API OverviewEnhanced APIs OverviewFeature Support By ChainAlchemy Quickstart Guide📚 ResourcesError ReferenceCompute UnitsPricing PlansCompute Unit CostsThroughputBatch RequestsGas Limits for eth_call and eth_estimateGasHow to Implement Retries🛠️ Alchemy SDKAlchemy SDK QuickstartHow to use Alchemy SDK with TypescriptExamples Using the Alchemy SDKHow to Manage a Multichain Project Using Alchemy SDKAlchemy SDK Surface OverviewAlchemy SDK vs. Raw API MethodsSDK Core Methodscall - SDKestimateGas - SDKfindContractDeployer -SDKgetAssetTransfers - SDKgetBalance - SDKgetBlock -SDKgetBlockNumber - SDKgetBlockWithTransactions - SDKgetCode - SDKgetFeeData - SDKgetGasPrice - SDKgetLogs - SDKgetStorageAt - SDKgetTokenBalances - SDKgetTokenMetadata - SDKgetTransactionCount - SDKgetTransactionReceipt - SDKgetTransactionReceipts - SDKsend - SDKSDK NFT MethodsgetNftsForOwner - SDKgetNftMetadata - SDKgetNftMetadataBatch - SDKrefreshNftMetadata -SDKgetNftSales - SDKsummarizeNftAttributes - SDKsearchContractMetadata - SDKgetNftsForOwnerIterator - SDKgetNftsForContractIterator -SDKgetContractMetadata - SDKgetNftsForContract - SDKgetTransfersForOwner - SDKgetTransfersForContract - SDKgetMintedNfts - SDKgetOwnersForNft - SDKgetOwnersForContract - SDKgetSpamContracts - SDKisSpamContract - SDKrefreshContract - SDKgetFloorPrice - SDKcomputeRarity - SDKverifyNftOwnership - SDKSDK Transact MethodsgetTransaction - SDKsendTransaction - SDKsendPrivateTransaction - SDKcancelPrivateTransaction - SDKwaitForTransaction - SDKSDK Debug MethodstraceCall - SDKtraceTransaction - SDKtraceBlock - SDKSDK Notify MethodsgetAllWebhooks - SDKgetAddresses - SDKgetNftFilters - SDKupdateWebhook - SDKcreateWebhook - SDKdeleteWebhook - SDKSDK WebSockets EndpointsSDK Ethers UtilsarrayifyformatUnitsconcathexConcatdnsEncodehexDataLengthformatEtherhexDataSlicehexStripZeroshashMessageisHexStringisValidNamejoinSignaturesplitSignaturetoUtf8ByteshexValuetoUtf8StringhexZeroPadzeroPadhexlifyidisBytesisBytesLikeInterfacenamehashparseEtherparseUnitsstripZeros🎨 NFT APINFT API QuickStartNFT API Tutorials and ApplicationsNFT API Endpoints OverviewNFT API FAQOwnership & Token GatinggetNFTsgetgetOwnersForTokengetgetOwnersForCollectiongetisHolderOfCollectiongetgetContractsForOwnergetNFT Metadata AccessgetNFTMetadatagetgetNFTMetadataBatchpostgetContractMetadatagetgetContractMetadataBatchpostsearchContractMetadatagetCollectionsgetNFTsForCollectiongetSpam DetectiongetSpamContractsgetisSpamContractgetisAirdropgetreportSpamgetSales & Marketplace DatagetFloorPricegetgetNFTSalesgetRarity DatacomputeRaritygetsummarizeNFTAttributesget💸 Transfers API (Tx History)Transfers API QuickstartTransfers API Endpointsalchemy_getAssetTransferspost💰 Alchemy TransactTransact QuickstartTransaction SimulationAsset ChangesExecution SimulationBundle SimulationTransaction Simulation ExamplesTransaction Simulation FAQsTransaction Simulation Endpointsalchemy_simulateAssetChangespostalchemy_simulateAssetChangesBundlepostalchemy_simulateExecutionpostalchemy_simulateExecutionBundlepostReinforced TransactionsGas Optimized Transactionsalchemy_sendGasOptimizedTransactionpostalchemy_getGasOptimizedTransactionStatuspostPrivate Transactionseth_sendPrivateTransactionposteth_cancelPrivateTransactionpost🧾 Transaction Receipts APITransaction Receipts Endpointsalchemy_getTransactionReceiptspost🪙 Token APIToken API QuickstartToken API Endpointsalchemy_getTokenAllowancepostalchemy_getTokenBalancespostalchemy_getTokenMetadatapost🔔 WebhooksNotify API QuickstartNotify Tutorials and ApplicationsNotify API FAQCustom Webhooks Quickstart (BETA)Custom Webhooks FAQCustom Webhooks GraphQL ExamplesNotify API MethodsGet all webhooksgetGet all addresses for an Address Activity webhookgetCreate webhookpostAdd and remove webhook addressespatchReplace webhook addressesputUpdate webhook statusputUpdate webhook NFT filterspatchUpdate NFT metadata webhook filterspatchGet all webhook NFT filtersgetDelete webhookdeleteWebhook TypesCustom WebhookAddress Activity WebhookMined Transaction WebhookDropped Transaction WebhookNFT Activity WebhookNFT Metadata Updates Webhook🔎 Trace APITrace API QuickstartTrace API Endpointstrace_callposttrace_blockposttrace_getposttrace_filterposttrace_transactionposttrace_rawTransactionposttrace_replayTransactionposttrace_replayBlockTransactionspostTrace API ResourcesWhat are EVM Traces?Trace API vs. Debug APIWhat is trace_transaction?What is trace_block?What is trace_filter?trace_call vs debug_traceCall🪲 Debug APIsDebug API QuickstartDebug API Endpointsdebug_traceBlockByHashpostdebug_traceBlockByNumberpostdebug_traceTransactionpostdebug_traceCallpost🔊 WebsocketsSubscription API QuickstartSubscription API Endpointsalchemy_minedTransactionsalchemy_pendingTransactionsnewPendingTransactionsnewHeadslogsBest Practices for Using WebSockets in Web3💎 EthereumEthereum API QuickStartEthereum API FAQEthereum Developer Guide to the MergeHow to decode an eth_call responseEthereum API Endpointseth_getBlockByHashposteth_getBlockByNumberposteth_blockNumberposteth_getBlockReceiptsposteth_getBlockTransactionCountByHashposteth_getBlockTransactionCountByNumberposteth_getTransactionByHashposteth_getTransactionByBlockHashAndIndexposteth_getTransactionByBlockNumberAndIndexposteth_getTransactionReceiptposteth_getTransactionCountposteth_callposteth_sendRawTransactionposteth_getCodeposteth_getBalanceposteth_accountsposteth_getStorageAtposteth_getProofposteth_getLogsposteth_newFilterposteth_newPendingTransactionFilterposteth_newBlockFilterposteth_getFilterChangesposteth_getFilterLogsposteth_uninstallFilterposteth_chainIdposteth_protocolVersionpostnet_listeningpostnet_versionposteth_getUncleCountByBlockHashposteth_getUncleCountByBlockNumberposteth_getUncleByBlockNumberAndIndexposteth_getUncleByBlockHashAndIndexposteth_estimateGasposteth_gasPriceposteth_feeHistoryposteth_maxPriorityFeePerGasposteth_createAccessListpostweb3_clientVersionpostweb3_sha3posteth_subscribeeth_unsubscribe💜 PolygonPolygon API QuickstartPolygon API FAQPolygon API Endpointseth_blockNumberposteth_getBlockByNumberposteth_getBlockByHashposteth_getBlockTransactionCountByNumberposteth_getBlockTransactionCountByHashposteth_getTransactionByHashposteth_getTransactionCountposteth_getTransactionByBlockHashAndIndexposteth_getTransactionReceiptposteth_getTransactionByBlockNumberAndIndexposteth_getTransactionReceiptsByBlockposteth_callposteth_sendRawTransactionposteth_getBalanceposteth_getStorageAtposteth_accountsposteth_getCodeposteth_getProofposteth_getLogsposteth_getFilterChangesposteth_getFilterLogsposteth_newBlockFilterposteth_newFilterposteth_newPendingTransactionFilterposteth_uninstallFilterposteth_getSignersAtHashposteth_chainIdposteth_getRootHashpostbor_getRootHashpostbor_getSignersAtHashpostbor_getAuthorpostnet_listeningpostnet_versionpostbor_getCurrentProposerpostbor_getCurrentValidatorsposteth_getUncleCountByBlockNumberposteth_getUncleCountByBlockHashposteth_getUncleByBlockHashAndIndexposteth_getUncleByBlockNumberAndIndexposteth_estimateGasposteth_gasPriceposteth_createAccessListpostweb3_clientVersionpostweb3_sha3posteth_subscribeeth_unsubscribe💟 Polygon zkEVMPolygon zkEVM API QuickstartPolygon zkEVM API FAQWhat is the difference between Polygon zkEVM and Ethereum?What is the difference between Polygon zkEVM and Polygon?Polygon zkEVM Endpointseth_call - Polygon zkEVMposteth_blockNumber - Polygon zkEVMposteth_getTransactionByHash - Polygon zkEVMposteth_getTransactionReceipt - Polygon zkEVMposteth_getTransactionCount - Polygon zkEVMposteth_getLogs - Polygon zkEVMposteth_estimateGas - Polygon zkEVMposteth_sendRawTransaction - Polygon zkEVMposteth_getBalance - Polygon zkEVMposteth_getBlockByNumber - Polygon zkEVMposteth_getBlockByHash - Polygon zkEVMposteth_newBlockFilter - Polygon zkEVMposteth_newFilter - Polygon zkEVMposteth_gasPrice - Polygon zkEVMposteth_uninstallFilter - Polygon zkEVMposteth_getBlockTransactionCountByHash - Polygon zkEVMposteth_getBlockTransactionCountByNumber - Polygon zkEVMposteth_getCode - Polygon zkEVMposteth_getFilterChanges - Polygon zkEVMposteth_getFilterLogs - Polygon zkEVMposteth_getTransactionByBlockNumberAndIndex - Polygon zkEVMposteth_getTransactionByBlockHashAndIndex - Polygon zkEVMposteth_chainId - Polygon zkEVMpostweb3_sha3 - Polygon zkEVMposteth_getStorageAt - Polygon zkEVMpostweb3_clientVersion - Polygon zkEVMpostnet_version - Polygon zkEVMpostzkevm_batchNumber - Polygon zkEVMpostzkevm_batchNumberByBlockNumber - Polygon zkEVMpostzkevm_consolidatedBlockNumber - Polygon zkEVMpostzkevm_getBatchByNumber - Polygon zkEVMpostzkevm_getBroadcastURI - Polygon zkEVMpostzkevm_isBlockConsolidated - Polygon zkEVMpostzkevm_virtualBatchNumber - Polygon zkEVMpostzkevm_verifiedBatchNumber - Polygon zkEVMpostzkevm_isBlockVirtualized - Polygon zkEVMpost🪐 ArbitrumArbitrum API QuickstartArbitrum API FAQArbitrum vs. Ethereum API DifferencesArbitrum API Endpointseth_blockNumberposteth_getBlockByHashposteth_getBlockByNumberposteth_getBlockTransactionCountByHashposteth_getBlockTransactionCountByNumberposteth_getTransactionByBlockNumberAndIndex - arbitrumposteth_getTransactionByBlockHashAndIndex - arbitrumposteth_getTransactionByHashposteth_getTransactionCountposteth_getTransactionReceiptposteth_callposteth_sendRawTransactionposteth_accountsposteth_getProofposteth_getBalanceposteth_getCodeposteth_getStorageAtposteth_getLogsposteth_newFilterposteth_newBlockFilterposteth_newPendingTransactionFilterposteth_getFilterChangesposteth_getFilterLogsposteth_uninstallFilterposteth_chainIdpostnet_versionpostnet_listeningposteth_getUncleByBlockNumberAndIndexposteth_getUncleByBlockHashAndIndexposteth_getUncleCountByBlockHashposteth_getUncleCountByBlockNumberposteth_estimateGasposteth_maxPriorityFeePerGasposteth_gasPriceposteth_feeHistoryposteth_createAccessListpostweb3_clientVersionpostweb3_sha3posteth_subscribeeth_unsubscribe🔴 OptimismOptimism API QuickstartOptimism API FAQOptimism API Endpointseth_blockNumberposteth_getBlockByNumberposteth_getBlockByHashposteth_getBlockTransactionCountByNumberposteth_getBlockTransactionCountByHashposteth_getTransactionByBlockHashAndIndexposteth_getTransactionByBlockNumberAndIndexposteth_getTransactionCountposteth_getTransactionByHashposteth_getTransactionReceiptposteth_callposteth_sendRawTransactionposteth_getBalanceposteth_accountsposteth_getProofposteth_getCodeposteth_getStorageAtposteth_getLogsposteth_newFilterposteth_newBlockFilterposteth_newPendingTransactionFilterposteth_getFilterLogsposteth_getFilterChangesposteth_uninstallFilterposteth_protocolVersionposteth_chainIdpostnet_listeningposteth_syncingpostnet_versionposteth_getUncleByBlockHashAndIndexposteth_getUncleByBlockNumberAndIndexposteth_getUncleCountByBlockHashposteth_getUncleCountByBlockNumberposteth_estimateGasposteth_gasPriceposteth_subscribeeth_unsubscribe❇️ SolanaSolana API QuickstartSolana API FAQSolana API EndpointsgetBlockProductionpostgetBlockpostgetBlockTimepostgetBlockCommitmentpostgetBlocksWithLimitpostgetBlockHeightpostgetBlockspostisBlockhashValidpostgetBalancepostgetLargestAccountspostgetAccountInfopostgetVoteAccountspostgetMultipleAccountspostgetProgramAccountspostgetClusterNodespostgetHealthpostgetVersionpostgetIdentitypostgetInflationGovernorpostgetInflationRatepostgetInflationRewardpostgetSupplypostgetEpochSchedulepostgetEpochInfopostgetFeeForMessagepostgetHighestSnapshotSlotpostgetGenesisHashpostgetRecentPerformanceSamplespostgetFirstAvailableBlockpostgetMinimumBalanceForRentExemptionpostgetTransactionpostsendTransactionpostgetSignatureStatusespostgetSignaturesForAddresspostsimulateTransactionpostminimumLedgerSlotpostgetMaxShredInsertSlotpostgetSlotpostgetSlotLeaderpostgetSlotLeaderspostgetMaxRetransmitSlotpostgetTokenAccountsByOwnerpostgetTokenAccountBalancepostgetTokenSupplypostrequestAirdroppostsignatureSubscribesignatureUnsubscribeslotSubscribeslotUnsubscribeslotUpdateSubscribeblockSubscribeblockUnsubscribelogsSubscribelogsUnsubscribe⭐️ AstarAstar API QuickstartAstar API FAQAstar API Endpointseth_getBlockTransactionCountByHashposteth_getBlockTransactionCountByNumberposteth_blockNumberposteth_getBlockByNumberposteth_getBlockByHashposteth_getTransactionByHashposteth_getTransactionReceiptposteth_getTransactionCountposteth_getTransactionByBlockHashAndIndexposteth_getTransactionByBlockNumberAndIndexposteth_callposteth_sendRawTransactionposteth_accountsposteth_getStorageAtposteth_getCodeposteth_getBalancepostnet_versionposteth_chainIdposteth_getUncleByBlockNumberAndIndexposteth_estimateGasposteth_maxPriorityFeePerGasposteth_gasPricepostweb3_clientVersionpostweb3_sha3posteth_subscribeeth_unsubscribeWriting Transactions & EVM Execution
