We have released two new endpoints for preparing token transfers as part of our Blockchain Tools:

• Prepare A Fungible Token Transfer From Address  
• Prepare A Non-Fungible Token Transfer From Address 

Using these two separate endpoints, customers can prepare transfers for fungible and non-fungible tokens from an address with private and public keys. The address doesn’t have to belong to a wallet. The response will include the transaction fee in Wei.

What else is new:

• In the endpoint New Reverted Block we’ve added UTXO protocols as possible values. 
• In the responses of List Confirmed Transactions By Address and Get Transaction Details by Transaction Id endpoints "contract" and "input" are now optional.
• In the Prepare A UTXO-Based Transaction From HD Wallet (xPub, yPub, zPub) endpoint, the “replaceable” has been made optional (previously required) in all places.
  

Technical documentation updates:

We’ve added additional information on the paginated and list based endpoints and we’ve updated the values for API requests. 

We've also updated our Key Management System (KMS) on GitHub.

Here is what's new in our latest release:

New endpoint: Prepare Transaction From Address

Through this endpoint customers can prepare a transaction from an address with private and public keys. The address doesn’t have to belong to a wallet. The response will include the transaction fee in Wei. The API is part of Blockchain Tools.

Improvement: 

The endpoint Prepare An Account Based Transaction From HD Wallet has been renamed to Prepare A Transaction From an Address in HD Wallet (xPub, yPub, zPub) to more correctly reflect its purpose. 

We’ve also updated our Node.js SDK and our Key Management System on GitHub.

Please update your libraries if you’ve used this endpoint.

The Crypto APIs Team

We’ve updated our open-source Key Management System (KMS) to add support for more blockchains and make some improvements. 

We’ve added as possible values Bitcoin Cash, Litecoin, Dogecoin, Dash, Zcash to the Prepare A UTXO-Based Transaction From HD Wallet (xPub, yPub, zPub) endpoint that can be used with the KMS.

Ethereum Classic is now supported in the Prepare An Account-Based Transaction From HD Wallet (xPub, yPub, zPub) API.

We’ve also made some small improvements and added a MIT License (MIT) that outlines the permissions of use. 

If you’ve already implemented the KMS, you’ll need to upgrade the SDK to the latest version. Check it out on GitHub.

We have released a new and improved version of our Open-source Key Management System (KMS). 

You can check it on our GitHub page. 

What’s new:

• The release includes better descriptions of endpoints and functions and better examples. 
• We have also removed redundant functionality related to blockchain events. 
• Bug fixes