Zapping and Auto-Approve

What Is WebLN?

WebLN is a standard that lets websites request Lightning payments through a browser extension. When a Nostr client wants to send a zap, it calls window.webln.sendPayment() and the extension handles the rest.

You do not need to configure anything for WebLN to work. Once your wallet is connected, the extension automatically registers itself as the WebLN provider for any site you visit.

How Zapping Works

Here is the flow when you zap a note on a Nostr client:

1. You click the zap button on a note and choose an amount.
2. The Nostr client creates a Lightning invoice and sends it to the extension via WebLN.
3. The extension shows you a confirmation popup with the amount, recipient, and the note being zapped.
4. You click Approve, the extension pays the invoice from your connected wallet.
5. The zap event is published to Nostr, and the recipient sees it.

The entire process happens within your browser. No switching to a separate wallet app, no copying invoices.

Setting Up Auto-Approve

For frequent zappers, confirming every 21-sat zap gets tedious. Auto-approve lets you set a threshold — any zap at or below that amount goes through instantly without a popup.

Configuring the Threshold

1. Click the extension icon and go to the Wallet tab.
2. Open Settings.
3. Find the Auto-Approve Threshold field.
4. Enter your preferred amount in sats. For example, 100 means any zap of 100 sats or less is approved automatically.
5. Save. The setting takes effect immediately.

How It Works

When a site requests a payment via WebLN:

• If the amount is at or below your threshold, the extension pays it silently. No popup, no interruption.
• If the amount is above your threshold, you see the normal confirmation popup.
• If auto-approve is set to 0, every payment requires manual approval.

This means you can scroll through your feed, zap notes freely with small amounts, and never break your flow. Larger payments still require your explicit approval for safety.

Per-Site Behavior

Auto-approve respects the extension's site permissions. If a site does not have WebLN permission, auto-approve does not apply — the site cannot request payments at all.

Monitoring Your Zaps

Every zap, whether auto-approved or manually confirmed, appears in your transaction history on the Wallet tab. You can review what was sent, to whom, and when.

If you notice unexpected auto-approved payments, lower your threshold or revoke the site's WebLN permission.

Recommended Thresholds

• 21 sats — the classic Nostr micro-zap. Conservative and safe.
• 100 sats — covers most casual zapping.
• 500 sats — for power users who zap frequently.
• 0 sats — disables auto-approve entirely.

What's Next?

If you set up your wallet with Quick Setup, you can claim your own Lightning Address. To control which sites can request payments, read about site permissions.