Documentation - lemma.id

SDK Overview

The Lemma JavaScript SDK provides client-side authentication with local credential verification.

JavaScript

const wallet = new LemmaWallet({
    // Optional
    debug: false,
    apiBase: 'https://lemma.id'  // override only if needed
});

Initialize the wallet. Call once on page load.

JavaScript

await wallet.init();
// Returns: void

Check if wallet is currently unlocked.

JavaScript

const unlocked = await wallet.isUnlocked();
// Returns: boolean

Get the user's pairwise identifier for your site.

JavaScript

const ppid = await wallet.derivePPID();
// Returns: string (hex-encoded HMAC)

See SDK Methods Reference for the complete list.