post https://api.g.alchemy.com/signer/v1/account/authenticator
Register a new authenticator (i.e. a passkey) with a user’s wallet to enhance security and enable multi-factor authentication across devices. Currently, this only support adding a new passkey (e.g. WebAuthN) as an additional authenticator.
Using React or Vanilla JS? Use our Account Kit SDK to create and use wallets. The SDK handles all signing and authentication complexity for you, making development faster and easier. We provide an SDK in React, Vanilla Typescript, and (soon) Java.
If you want to use APIs directly, please first see this guide for implementing custom logic to send stamped requests.