deprecated

[10/05/2022] Deprecation of Ropsten, Kovan, and Rinkeby on Ethereum

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.

removed

[08/25/2022] Removed support for unprotected transactions

Removing support for unprotected transactions that do not adhere to the EIP 155. Please make any necessary code changes ahead of time to protect your transactions from replay attacks by including the chainId field in your transaction payload.

deprecated

[08/15/22] Deprecation of Optimism Kovan

Optimism Kovan will be deprecated in favor of Optimism Goerli. We recommend migrating your applications from Optimism Kovan to Optimism Goerli ASAP.

added

[08/15/2022] Add "order" parameter to alchemy_getAssetTransfers

Added the order parameter to alchemy_getAssetTransfers.

added

[08/09/2022] Add support for Arbitrum and Optimism in alchemy_getAssetTransfers

Added support for Arbitrum and Optimism in alchemy_getAssetTransfers.

removed

[08/05/2022] getContractMetadata tokenType field capitalization switch

The tokenType field on the getContractMetadata method will switch capitalization from "erc721" or "erc1155" to "ERC721" or "ERC1155". Please prepare ahead of time for this change by setting up your code to accept either capitalization formats.

removed

[08/09/2022] Enforcing HTTPS for all API Endpoints

At 9am PST we will begin to enforce HTTPS requests. This means if you send requests using HTTP it will return a 301 status code, and we will redirect you to the HTTPS version of that respective endpoint.

removed

[08/01/2022] Removed support for Debug API methods, please use Trace API instead

[API] Removed support for Debug API methods, including debug_TraceTransaction. Please use Trace API Endpoints instead.

deprecated

[Q3 2022] Deprecation of Arbitrum Rinkeby in Favor of Arbitrum Goerli

Arbitrum Rinkeby will be replaced in favor of Arbitrum Goerli sometime in Q3 2022 following the Eth-Rinkeby deprecation target date. We encourage you to migrate over to Goerli as soon as possible.

added

[07/12/22] Added thumbnail and format parameters to getNFTs & getNFTMetadata

Added thumbnail and format parameters under the media array of getNFTs and getNFTMetadata.