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Changelog for Alchemy SDK for JavaScript

Unreleased

Major Changes

Minor Changes

3.6.5

Minor Changes

  • Added HYPERLIQUID testnet.
  • Added PLASMA mainnet.
  • Added PLASMA testnet.

3.6.4

Minor Changes

Updates dependencies to resolve critical and high-severity security vulnerabilities:

  • axios: ^1.7.4 → ^1.12.0 (fixes SSRF and DoS vulnerabilities)
  • rollup: ^2.70.1 → ^2.79.2 (fixes XSS vulnerability)
  • elliptic: 6.5.7 → 6.6.1 (fixes 9 critical ECDSA vulnerabilities)

3.6.3

Minor Changes

  • Added Hyperliquid Mainnet

3.6.2

Minor Changes

  • Added Botanix Mainnet, Testnet; Humanity Mainnet; Rise Testnet
  • Deprecated Celo Baklava; Fantom Testnet; Geist Mainnet, Polter

3.6.1

Minor Changes

  • Remove leading 0s in hex strings for polygon compatibility

3.6.0

Major Changes

  • Added a new PortfolioNamespace with five new methods: getTokensByWallet(), getTokenBalancesByWallet(), getNftsByWallet(), getNftCollectionsByWallet(), and getTransactionsByWallet(). Access these methods via alchemy.portfolio.

3.5.10

Minor Changes

  • Removed batch operations for getTokensForOwner to fix support for newer networks

3.5.9

Minor Changes

  • Added Anime Mainnet and Sepolia, Story Mainnet and Aeneid, Megaeth Testnet

3.5.8

Minor Changes

  • Added Berachain Bepolia, Celo Baklava, Ethereum Hoodi, Gensyn Testnet, Lens Mainnet, Settlus Mainnet, Superseed Mainnet and Sepolia, Tea Sepolia
  • Deprecated Berachain Bartio
  • Replace optimism with opt-mainnet

3.5.7

Minor Changes

  • Added Solana address activity webhook
  • Added animation to NFT type
  • Added name to create-webhook

3.5.6

Minor Changes

  • Added MONAD testnet.
  • Added SETTLUS testnet (Sepolia).

3.5.5

Minor Changes

  • Added SEI mainnet.

3.5.4

Major Changes

Minor Changes

  • Added RONIN mainnet, testnet (Saigon).

3.5.3

Major Changes

Minor Changes

  • Added ABSTRACT mainnet.
  • Added UNICHAIN mainnet.
  • Added SEI testnet.

3.5.2

Minor Changes

  • Added BERACHAIN mainnet.

3.5.1

Minor Changes

  • Added many new networks

3.5.0

Major Changes

  • Added a new PricesNamespace with three new methods: getTokenPriceByAddress(), getTokenPriceBySymbol(), getHistoricalPriceByAddress, and getHistoricalPriceBySymbol(). Access these methods via alchemy.prices.

3.4.8

Minor Changes

  • Added networks for FLOW.

3.4.7

Minor Changes

  • Added networks for ROOTSTOCK.

3.4.6

Minor Changes

  • Fixed webhook network parsing in getAllWebhooks method for all supported networks.

3.4.5

Minor Changes

  • Fixed createWebhook's skip_empty_messages param.

3.4.4

Minor Changes

  • Added networks for WORLDCHAIN.

3.4.3

Minor Changes

  • Added networks for SONEIUM and BERACHAIN. Note that these are primarily for CoreNamespace methods. Not all namespaces will work with these networks.

3.4.2

Minor Changes

  • Addressed security vulnerabilities by adding overrides for elliptic and ws dependencies. Specifically:
    • Updated elliptic to version 6.5.7 (latest) to fix vulnerabilities related to EDDSA signature length checks and ECDSA BER-encoded signatures.
    • Updated ws to version 7.5.10 to mitigate a potential DoS vulnerability. The latest major version of ws is 8.x, however, 7.5.10 is the most up-to-date version compatible with ethers v5, which depends on 7.x versions of ws.

3.4.1

Minor Changes

  • Fixed a bug where the openSeaMetadata?.safelistRequestStatus was undefined in the Nft object that resulted in a Cannot read properties of undefined error (#416)

3.4.0

Major Changes

  • Added networks for SHAPE, LINEA, FANTOM, ZETACHAIN, ARBNOVA, BLAST, MANTLE, SCROLL, GNOSIS, BNB, AVAX, CELO, METIS, OPBNB. Note that these are primarily for CoreNamespace methods. Not all namespaces will work these networks.
  • App IDs are now a required property when calling NotifyNamespace.createWebhook() with WebhookType.GRAPHQL. This is not a Typescript breaking change, but rather a run-time breaking change. Calling the endpoint without an App ID will now throw an error instead of returning a 503.

Minor Changes

  • Fixed a bug with NotifyNamespace.createWebhook() when using WebhookType.GRAPHQL. Also added the option use skipEmptyMessages when creating graphQL webhooks to skip empty blocks.
  • Updated axios version to remove security warning (#443).

3.3.1

Minor Changes

  • Fixed a bug where the openSeaMetadata?.safelistRequestStatus was undefined in the Nft object that resulted in a Cannot read properties of undefined error (#416)
  • Added support connectionInfoOverrides field in the Alchemy constructor. This allows you to override the ethers.js ConnectionInfo object and specify custom connection information for the underlying JsonRpcProvider.

3.3.0

Major Changes

  • Added support for Zksync Mainnet and Sepolia via the Network.ZKSYNC_MAINNET and Network.ZKSYNC_SEPOLIA enums.

Minor Changes

3.2.1

Major Changes

  • Added support for Arbitrum and Optimism Sepolia webhook creation.

Minor Changes

  • API error messages return the actual error instead of [Object object]

3.2.0

Major Changes

  • Added support for Polygon Amoy network via the Network.MATIC_AMOY enum.

Minor Changes

3.1.2

Major Changes

Minor Changes

  • Upgraded the axios dependency to v1.6.5, fixing a vulnerable version #397. Thanks @mpsq for the contribution!

3.1.1

Major Changes

Minor Changes

  • Added endpoints for isAirdropNft() and reportSpam() in NftNamespace.
  • Added a missing marketplaceAddress field to the NftSale in NftNamespace.getNftSales().
  • Fixed an incorrect field name for bannerImageUrl in OpenSeaCollectionMetadata. Deprecated the old field name imageBannerUrl.
  • Added support for Base networks in NotifyNamespace.

3.1.0

Major Changes

  • Added support for Optimism Sepolia and Base Sepolia via the Network.OPT_SEPOLIA and Network.BASE_SEPOLIA enums.

Minor Changes

3.0.0

Major Changes

2.11.0

Minor Changes

  • Added support for Arbitrum Sepolia network via the Network.ARB_SEPOLIA enum.

2.10.1

Major Changes

Minor Changes

  • Fixed a bug in the Log object where the removed field was not included in the response.

2.10.0

Major Changes

  • Add support for Base

Minor Changes

2.9.2

Major Changes

  • Added a new method CoreNamespace.isContractAddress() to easily check if an address is a contract or EOA. The method accepts a string address and returns a boolean value indicating if the given address is a contract address or not.

Minor Changes

  • Fixed a bug where GetOwnersForContractResponse was missing the pageKey field.

2.9.1

Major Changes

Minor Changes

  • Add the refreshCache parameter to NFT rarity endpoints to allow users to update stale rarity values.
  • Add the includeCount parameter to getOwnersForContract.

2.9.0

Major Changes

  • Fixed a bug with in NftNamespace.getNftSales() in which there was a typo in decimal field of the NftSaleFeeData object. The field is now correctly named decimals, and decimal is marked deprecated to avoid a breaking change.

Minor Changes

  • Added redundancy to CoreNamespace.getTokensForOwner() to handle failures when fetching token metadata.
  • Added support for the acquiredAt field for ordered getNftsForOwner queries. Only available when specifying orderBy: NftOrdering.TRANSFERTIME in the request.
  • Added the NftSaleMarketplace.BLUR marketplace enum to the NftNamespace.getNftSales() method return.
  • Added support for the validAt response field to NftNamespace.getNftSales().

2.8.3

Major Changes

Minor Changes

  • Fixed a bug with NotifyNamespace when creating webhooks on ETH_SEPOLIA, OPT_GOERLI, and ARB_GOERLI.
  • Fixed a bug with Wallet.populateTransaction() where the method would never resolve.
  • Fixed a bug with NftNamespace.getMintedNfts() and NftNamespace.getTransfersForOwner() where the method would always throw an error for certain addresses (#318).

2.8.2

Major Changes

Minor Changes

  • Moved the exports.default field to be the last field. This fixed a bug introduced in 2.8.1 that prevented certain frameworks from building (#313).

2.8.1

Major Changes

Minor Changes

  • Fixed a bug where the SDK was not compatible with moduleResolution: bundler when using typescript at v5.0(#302). Thanks @florrdv!
  • Fixed a bug with getTransfersForOwner() and getTransfersForContract() methods in the NftNamespace, where some NFTs would not be returned if the NFT was transferred multiple times.

2.8.0

Major Changes

Added PolygonZkEvm Mainnet and Testnet limited support to the sdk

Minor Changes

2.7.0

Major Changes

  • Added CustomGraphqlWebhook to be used with the NotifyNamespace. This webhook uses graphql to track any event on every block.

Minor Changes

2.6.3

Major Changes

Minor Changes

  • Added support for a pageKey and pageSize parameter in NftNamespace.getOwnersforNft to allow for pagination of the results.

2.6.2

Major Changes

Minor Changes

  • Added additional descriptive tokenTypes in NFT- and contract-level metadata, for contracts which don't support any NFT standard.

2.6.1

Major Changes

Minor Changes

  • Added the title field to ContractForOwner to represent the title of the token held by the owner.
  • Fixed a bug where the media field in ContractForOwner was a Media object rather than a Media[] array.
  • Added support for the Eth Sepolia network via the Network.ETH_SEPOLIA enum.

2.6.0

Major Changes

  • Added the NftMetadataUpdateWebhook to be used with the NotifyNamespace. This webhook tracks all ERC721 and ERC1155 token metadata updates.

Minor Changes

2.5.0

Major Changes

  • Added TransactNamespace.simulateAssetChangesBundle() to simulate a list of transactions in sequence and return a list of asset changes.
  • Added TransactNamespace.simulateExecutionBundle() to simulate a list of transactions in sequence and return a list of decoded logs and traces.
  • Added NftNamespace.getContractMetadataBatch() to get the metadata associated with multiple NFT contracts in a single request.

Minor Changes

  • Added exports for Ethers.js types and interfaces used by the SDK.
  • Added the pageSize parameter to the NftNamespace.getContractsForOwner() method.

2.4.3

Major Changes

Minor Changes

  • Added a missing gas field in the DebugTransaction interface to specify the gas provided for a transaction execution.
  • Fixed a bug with NftNamespace.getMintedNfts(), NftNamespace.getTransfersForOwner(), and NftNamespace.getTransfersForContract() where the method would incorrectly error if the specified address had no transfers.
  • Added the BigNumber ethers export. You can access this by importing BigNumber along with the other exports in the package.

2.4.2

Major Changes

Minor Changes

  • Added the CoreNamespace.getTokensForOwner() method to get all the token balances and token metadata for a given address.
  • Added the wyvern and cryptopunks marketplaces in the NftSaleMarketplace enum to the NftNamespace.getNftSales() method.
  • Added the blockHash field to the OwnedNftsResponse returned by NftNamespace.getNftsForOwner() to track the block hash that the request was based on.

2.4.1

Major Changes

Minor Changes

  • Added the NftNamespace.getTransfersForOwner() method to get all NFT transfers to or from a provided owner address.
  • Added the NftNamespace.getTransfersForContract() method to all the NFT transfers for a provided NFT contract address.
  • Deprecated the GetMintedNftsResponse interface in favor of the TransfersNftResponse. The TransfersNftResponse contains the same properties as the GetMintedNftsResponse and includes additional fields about the transfer.

2.4.0

Major Changes

  • Added TransactNamespace.simulateAssetChanges() to simulate a transaction and return a list of asset changes.
  • Added TransactNamespace.simulateExecution() to simulate a transaction and return a list of decoded logs and traces.

Minor Changes

2.3.1

Major Changes

Minor Changes

  • Added support for passing in a null tokenId when using NFT Webhook Filters, which allows you to listen to all token ids in a collection.
  • Added NftNamespace.getMintedNfts() to fetch all the NFTs an owner address minted, optionally filtered by a set of specific NFT contracts.
  • Added the option to pass in an EventFilter with multiple addresses to the CoreNamespace.getLogs() method.
  • Fixed a bug where the protocolFee was not included in the response for NftNamespace.getNftSales(). Deprecated the existing marketplaceFee property in favor of the new protocolFee property.

2.3.0

Major Changes

  • Added the DebugNamespace to the top-level Alchemy object. The DebugNamespace is used to replay and inspect transactions and mined blocks in greater detail.

Minor Changes

  • Added the tokenUriTimeoutInMs option to NftNamespace.getNftsForContract() to specify the timeout duration for fetching an NFT's underlying metadata.
  • Fixed a bug where using AlchemySubscriptions.PENDING_TRANSACTIONS with a string array input would throw an error (#222).
  • Added support for the refreshCache option in NftNamespace.getNftMetadata(). This option is now available when using the options overload. The original method without the options overload is now deprecated.
  • Added support for the requestTimeout option in the AlchemySettings object to configure a timeout for NftNamespace and NotifyNamespace methods. Thanks @Abbaskt!
  • Added the contractDeployer and deployedBlockNumber into the NftContract object. Methods that return NFTs such as NftNamespace.getNftsForOwner() and NftNamespace.getContractsForOwner() now include this information under the contract field.

2.2.5

Major Changes

  • Added NftNamespace.getContractsForOwner() to fetch all NFT contracts for a specified owner address.

Minor Changes

  • Fixed a bug in NftNamespace.getNftsForOwner() where the openSea metadata was not included in the returned NFT.
  • Marked the NftExcludeFilters type as deprecated. Please use NftFilters instead.
  • Added support for the orderBy param to NftNamespace.getNftsForOwner() and NftNamespace.getContractsForOwner().

2.2.4

Major Changes

Minor Changes

  • Fixed a bug where newHeads subscriptions would error and crash when reconnecting to the websocket.
  • Fixed a bug where certain subscriptions would not reconnect after the websocket reconnected.
  • Added exports for toUtf8Bytes and toUtf8String in Utils.

2.2.3

Major Changes

Minor Changes

  • Fixed a typo with the AlchemySettings.batchRequests property.

2.2.2 (DEPRECATED)

Major Changes

Minor Changes

  • Added support for ENS resolution to the NotifyNamespace and WebsocketNamespace methods.
  • Added the batchRequests setting in AlchemySettings. Enabling this setting will automatically batch and send json-rpc requests to reduce network overhead.
  • Included new export for the Interface class from ethers to simplify encoding ABI when using eth_call.
  • Added support for the NftNamespace.getNftMetadataBatch() method to fetch metadata for multiple NFTs in a single call.
  • Added support for the NftNamespace.getNftSales() method to fetch NFT sales across different marketplaces. Thanks @xeno097!

2.2.1

Major Changes

Minor Changes

  • Fixed a bug where AlchemyConfig.getWebsocketProvider() was not exported as a public method. This method allows you get the underlying WebsocketProvider that is implemented by ethers.
  • Added the NftNamespace.summarizeNftAttributes() method to get the summary of attribute prevalence for all NFTs in a contract.
  • Added the NftNamespace.searchContractMetadata() method to search for a keyword across ERC721 and ERC1155 contract metadata.
  • Added support for ENS resolution on several CoreNamespace methods. You should now be able to pass in an ENS domain into any param that requires an owner address.
  • Added the CoreNamespace.resolveName() and CoreNamespace.lookupAddress() methods to resolve and lookup ENS domains and their owner addresses.
  • Fixed a bug where the Accept-Encoding header was incorrectly included in requests that originated from the browser (#174).
  • Added the openSea response to NftNamespace.getContractMetadata()to match the REST endpoint (#162).

2.2.0

Major Changes

  • Added the NotifyNamespace to the top-level Alchemy object. The NotifyNamespace is used to perform CRUD operations on webhooks in the Notify API.
  • Added the alchemy_minedTransactions subscription event to the WebsocketNamespace. This subscription emits full transaction objects or hashes that are mined on the network based on provided filters.
  • Added the NftNamespace.computeRarity() method to get the rarity attributes of the provided NFT. Thanks @xeno097!

Minor Changes

2.1.1

Minor Changes

  • Added the AIDROPS enum to NftNamespace.getNftsForOwner().
  • Added the spamInfo field to the response for getNftsForOwner() and getNftsForContract().
  • Fixed a bug where type declarations were not available when using NodeNext module resolution. Thanks @quentinverlhac!
  • Marked Ropsten, Rinkeby, and Kovan Network enums as deprecated. Please switch over to Sepolia.

2.1.0

Major Changes

  • POTENTIALLY BREAKING: Fixed a typing bug where the totalSupply field in an NftContract should have type string instead of number.
  • Updated the Nft class to include the contract metadata in the Nft.contract field.
  • Added commonly used utility methods from ethers.js into a top-level Utils export.
  • Added the NftNamespace.verifyNftOwnership() method to replace the deprecated checkNftOwnership() method.
  • Added Contract and ContractFactory exports from ethers into the top-level exports.

Minor Changes

  • Added support for withTokenBalances in NftNamespace.getOwnersForContract().
  • Added support for the erc20 token type and pagination for CoreNamespace.getTokenBalances().
  • Added bytes field to the Media object in the NFT metadata responses to indicate the size of the media in bytes. Note that the size field is not supported by the backend and will be removed in the next version.

2.0.4

Minor Changes

  • Added a size field to the Media object in the NFT metadata responses to indicate the size of the media in bytes.
  • Bumped @ethersproject dependencies to v5.7.0 to support safe and finalized blocks.

2.0.3

Minor Changes

  • Added support for the pageSize parameter in GetNftsForOwnerOptions to specify the number of NFTs fetched when using alchemy.nft.getNftsForOwner().
  • Added support for a Wallet object. This object is identical to the Ethers Wallet class.
  • Added support for Arbitrum Goerli network via the Network.ARB_GOERLI enum.
  • Added support for the AStar Mainnet network via the Network.ASTAR_MAINNET enum.
  • Added typed request/response overloads for CoreNamespace.getAssetTransfers() for when the withMetadata param is true.
  • Added support the tokenUriTimeoutInMs parameter on getNftsForOwner(), getNftMetadata(), and getNftsForContract().

2.0.2

Major Changes

  • Added the transact namespace for functionality relating to sending transactions. This includes the Flashbots methods sendPrivateTransaction and cancelPrivateTransaction.

Minor Changes

  • Removed the deprecated TOKEN enum from AssetTransfersCategory.
  • Added support for Optimism Goerli network via the Network.OPT_GOERLI enum.
  • Added the pageSize parameter in GetNftsForContractOptions to specify the number of NFTs fetched when using alchemy.nft.getNftsForContract.
  • Added correct withMetadata typing to AssetTransfersResponse.

2.0.1

Minor Changes

  • Added an optional url setting to AlchemySettings to allow specifying a custom hardcoded URL to send all requests to.
  • Fixed a bug where the SDK would incorrectly include a gzip header in browser environments

2.0.0

Major Changes

  • Top level package has moved from @alch/alchemy-sdk to alchemy-sdk for convenience. New command to install is npm install alchemy-sdk
  • Updated instantiation syntax: initializeAlchemy(settings) is now new Alchemy(settings)
  • Added three namespaces under the Alchemy object: core, nft, and ws. All Ethers.js provider methods and Alchemy Enhanced APIs (other than NFT) are under core.
  • Moved top-level methods under the Alchemy object. Instead of getNftsByOwner(alchemy, 'vitalik.eth'), now methods are called using alchemy.nft.getNftsByOwner('vitalik.eth')
  • Ethers.js Alchemy Provider methods are now directly embedded under alchemy.core
  • Ethers.js WebSocket Provider methods are now directly embedded under alchemy.ws
  • The settings object is now a config module under alchemy.config.
  • If necessary, the full Ethers.js Provider is now available under alchemy.config.getProvider() as a promise to reduce bundle size.
  • If necessary, the full WebSocket Provider is now available under alchemy.config.getWebSocketProvider() as a promise to reduce bundle size.
  • Dynamic imports for large methods (in particular, Ethers.js methods) are now supported. Initial package size for the Alchemy SDK is 20kB, and will only download Ethers.js packages when a relevant method is called.
  • Methods including Collection in the NFT package have been renamed to Contract: for instance, getNftsForCollection is now getNftsForContract.