clerk-webhooks-events

name	clerk-webhooks-events
description	Configure Clerk webhooks and handle authentication events. Use when setting up user sync, handling auth events, or integrating Clerk with external systems via Svix webhooks. Trigger with phrases like "clerk webhooks", "clerk events", "clerk user sync", "clerk svix", "clerk event handling".
allowed-tools	Read, Write, Edit, Bash(npm:*), Grep
version	1.14.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","clerk","authentication","webhooks"]
compatibility	Designed for Claude Code, also compatible with Codex and OpenClaw

Clerk Webhooks & Events

Overview

Configure and handle Clerk webhooks for user lifecycle events and data synchronization. Clerk uses Svix for webhook delivery with HMAC-SHA256 signature verification. As of 2025, Clerk provides a built-in verifyWebhook() helper in @clerk/backend alongside the manual Svix approach.

Prerequisites

• Clerk account with webhook endpoint configured in Dashboard
• HTTPS endpoint (use ngrok for local dev)
• CLERK_WEBHOOK_SECRET environment variable (starts with whsec_)

Instructions

Step 1: Install Dependencies

# Option A: Use @clerk/backend's built-in verifyWebhook() (recommended)
# Already included with @clerk/nextjs — no extra install needed

# Option B: Manual Svix verification
npm install svix

Step 2: Create Webhook Endpoint (verifyWebhook — Recommended)

// app/api/webhooks/clerk/route.ts
import { verifyWebhook } from '@clerk/backend/webhooks'
import type { WebhookEvent } from '@clerk/nextjs/server'

export async function POST(req: Request) {
  let evt: WebhookEvent

  try {
    evt = await verifyWebhook(req)
  } catch (err) {
    console.error('Webhook verification failed:', err)
    return new Response(, { :  })
  }

   (evt)
}