post https://api.g.alchemy.com/signer/v1/lookup
Query the existence of a user’s wallet using their email address. This endpoint checks if a wallet is associated with the provided email, returning relevant user or wallet details if found. It’s useful for verifying user registration or wallet status in your application.
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.