Starting on November 8, 2022 we no longer support existing and new accounts on Flow. We have communicated this over email to impacted teams, and adding here for posterity. We recommend using the Flow’s public access api. For Flow NFT API’s the Flow team recommends the following options:
We are adding wildcards for NFT Transfer Activity webhooks and moving to per block delivery.
The NFT API has a new getNFTMetadataBatch endpoint to conveniently fetch NFT metadata for a list of NFTs. Unlike other NFT API methods, this is a POST method that takes a list of tokens in the request body.
includeFilters parameter has been added to the getNFTs API. When
includeFilters are set, only NFTs that match one of the specified filters will be included in the result. For clarity, the existing
filters param has been renamed to
excludeFilters (note: this is NOT a breaking change, as the
filters param will continue to be supported).
excludeFilters are mutually exclusive, and specifying both types of filters will result in an error.
alchemy_minedTransactions is now available as a WebSocket subscription type on all EVM networks to subscribe to mined transactions based off given filters.
AWS is updating their Certificate Authorities.
Most users will not experience an impact from this change.
[10/05/2022] Deprecation of Ropsten, Kovan, and Rinkeby on Ethereum, Opt Kovan on Optimism, and Arb Rinkeby on Arbitrum
The Ropsten, Kovan and Rinkeby networks on Ethereum will no longer be supported on Alchemy. All requests to those networks after this date will return HTTP 410 errors. We strongly recommend switching over to Goerli as soon as possible. Here is a short guide on how to migrate.
Following methods are now supported on Ethereum, Polygon, Optimism, and Arbitrum.
[9/29/2022] Replace getContractsForOwner 'ownedCount' field with 'numDistinctTokensOwned' and 'totalBalance'
ownedCount field of
getContractsForOwner has been replaced with two new fields:
totalBalance, which is the sum of all balances held on all tokens on a contract; and
numDistinctTokensOwned, which is the number of distinct token IDs held. The
ownedCount field (which currently holds the same data as
totalBalance) is deprecated and will be removed after a few weeks.