[9/29/2022] Stop defaulting to blockHash for alchemy_getTransactionReceipts (if both blockHash and blockNumber are provided)

alchemy_getTransactionReceipts no longer defaults to blockHash if both blockHash and blockNumber are provided. You will instead receive an error asking you to explicitly pick either blockHash or blockNumber.


[9/20/2022] Changing capitalization of SummarizeNFTAttributes endpoint

The summarizeNFTAttributes endpoint (previously named summarizeNftAttributes, with 'Nft' uncapitalized) is now named summarizeNFTAttributes for consistency with the naming of our other endpoints. Please switch over to the new capitalization. For convenience, both names will be supported temporarily.


[9/12/2022] Rename 'contract' field in SummarizeNftAttributes response

The 'contract' field in the summarizeNftAttributes endpoint response is being renamed to 'contractAddress' for better consistency with our existing endpoints. For convenience, both fields will be included in the response until 9/19, at which point the 'contract' field will no longer be returned.


[09/07/22] Removed support for trace_callMany and vmTrace

trace_callMany support has been removed in addition to vmTrace. See Trace API Quickstart for details.


[09/06/2022] Removed Ability to Create Rinkeby Apps in Dashboard

The Rinkeby testnet will no longer be supported after the Ethereum merge so no new apps can be created on Rinkeby through Alchemy. We recommend instead using the Goerli network.


[09/02/2022] Deprecated support for trace_rawTransaction

trace_rawTransaction has not yet been implemented at the trace node client level (Erigon) so Alchemy is unable to support this method. Once it is built on the node level we will bring back support!


[09/02/22] Deprecated support for alchemy_newFullPendingTransactions and alchemy_filteredNewFullPendingTransactions

alchemy_newFullPendingTransactions and alchemy_filteredNewFullPendingTransactions has been replaced with alchemy_pendingTransactions WebSocket subscription.


[8/31/2022] NFT Rarity Endpoints

Added two new beta endpoints to get data on NFT attributes and rarity. The computeRarity endpoint computes the prevalence of each attribute for an individual NFT. The summarizeNftAttributes generates a summary of attribute prevalence across a collection.


[8/29/2022] AIRDROPS filter for /getNFTs

The /getNFTs endpoint now supports an AIRDROPS filter that removes all airdropped tokens from the API response. Airdrops are defined as tokens which were minted to a wallet address in a transaction sent by a different address. Because most spam NFTs are also airdropped, this filter may be useful in removing spam from API responses.


[08/26/2022] Token Inference for alchemy_getTokenBalances

Added token inference support to alchemy_getTokenBalances.