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For Fireblocks’ recommended embedded wallet solution, see Dynamic Embedded Wallets. The documentation below covers the legacy Embedded Wallet APIs and SDKs.
Not familiar with the API user creation and authentication? Visit the links below to understand how each process works:
API communication between the customer backend and the Fireblocks platform occurs over HTTP (REST). Authentication uses API users and JSON Web Tokens (JWTs) signed for each request. Note: For end users accessing via the app with the Embedded Wallet SDK, authentication uses IDP tokens and pre-configured SSO OAuth, where the NCW Signer API user is configured.

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API roles

The Fireblocks EW feature requires two API roles: EW Admin and EW Signer.

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EW Admin

This role is used for administrative workspace operations, such as disable/enable a wallet.

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EW Signer

This role is used for specific wallet operations, such as creating a transaction from a specific end user wallet. There are two ways in which this API user is used:
  • Implicitly, as part of the EW SDK using the OAuth pre-configured configuration.
  • Explicitly, similar to the NCW Admin API user (using signed JWT)

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Role permissions

The table below lists the different operations that can be executed by the EW Admin & EW Signer API users.