• The MPC_ECDSA_SECP256R1 option has been removed from the documentation. It was included in the SigningAlgorithm Vault object. It has never been supported by Fireblocks and should not have been documented previously.
• For customers who use the Fireblocks EU cloud environment, the rawTx parameter is not included in the CallbackResponse object.

• Four webhook event types and corresponding event objects have been available since 2022, but are now documented with complete descriptions. They are:
  • INTERNAL_WALLET_ASSET_REMOVED
  • EXTERNAL_WALLET_ASSET_REMOVED
  • CONTRACT_WALLET_ASSET_ADDED
  • CONTRACT_WALLET_ASSET_REMOVED

On June 5, 2023, the new cross-border settlement API endpoints allow you to configure and execute cross-border settlements.

• Documentation > Guides > Retrieving NFTs
  • Added the NFT webhook examples section

• Updated the API Reference > Fireblocks API > Webhooks pages
  • Resend failed webhooks
    • Added a note clarifying the timeout period and maximum number of attempts before failed webhooks are no longer available
  • Resend failed webhooks for a transaction by ID
    • Added that the endpoint can be called at any time
    • Added a note clarifying that the endpoint returns two webhooks

• ExchangeType data object
  • Added the KRAKENINTL value
  • Removed the FTX value due to the FTX integration being deprecated
  • Added a note to the object clarifying that the BINANCEUS and KRAKENINTL values should be used only by their respective customers

• API Reference > Resources > API Co-Signer
  • Moved the Automated Callback Signer content to API Reference > Webhooks & Notifications > API Co-Signer Callback to align the callback with similar content
    • Also changed the page's name from Automated Callback Signer to API Co-Signer Callback to help clarify its relationship to the API Co-Signer
  • Updated the API Co-Signer page with links to the Help Center's API Co-Signer section and to the Callback Handler structure

• Exchange Account Objects
  • Updated the Exchange Objects page title to Exchange Account Objects for consistency
• Network Connection Objects
  • Updated the Network Objects page title to Network Connection Objects to help clarify that these objects refer to the Fireblocks Network
  • Updated the NetworkConnectionRoutingPolicy object
    • Removed the following parameters due to the Signet and Silvergate integrations being deprecated:
      • sen
      • signet
      • sen_test
      • signet_test
• Transaction Objects
  • Removed the FeePayerInfo object
  • Moved the UnspentInputsData object to the Vault Objects page
  • Further separated the page's contents into the following pages:
    • Transaction Authorization Objects
    • Fee Estimation Objects
    • Transaction Screening Objects
    • Raw Signing Objects
  • Adjusted order of objects based on their perceived importance

We updated the following API Reference pages:

On May 9th, 2023, the new API GET /v1/vault/asset_wallets provides a fast traversal of all of your account balances.