Free — no credit card required

How to Test & Monitor Stripe Webhooks in 2026

Complete guide to testing, debugging, and monitoring Stripe webhooks with auto-classification, signature verification, failure diagnosis, and safe event replay.

Setup

Step 1: Create a free account at webhook.sdnbros.app
Step 2: Copy your webhook URL from the dashboard
Step 3: In Stripe Dashboard → Developers → Webhooks → Add Endpoint
Step 4: Paste the URL and select events (charge.succeeded, invoice.paid, etc.)
Step 5: Send a test event from Stripe — it appears classified in real-time

Test with curl

curl -X POST https://webhook.sdnbros.app/p/YOUR_TOKEN \
  -H "Content-Type: application/json" \
  -H "Stripe-Signature: t=1234,v1=test" \
  -d '{"id":"evt_test","type":"charge.succeeded","data":{"object":{"amount":2999,"currency":"usd"}}}'

Supported Event Types

SDNBros auto-detects these Stripe events:

charge.succeeded charge.failed charge.refunded invoice.paid invoice.payment_failed invoice.created checkout.session.completed checkout.session.expired customer.subscription.created customer.subscription.updated customer.subscription.deleted payment_intent.succeeded payment_intent.payment_failed

Common Errors & How to Fix Them

Error	Cause	Fix
`HTTP 401`	Invalid signing secret — webhook signature verification failing	Update the signing secret in Project Settings to match Stripe's endpoint secret
`HTTP 500 on charge.succeeded`	Your handler crashes when processing payment confirmation	Check server logs for null pointer or missing field — Stripe payload may have changed
`Timeout`	Your webhook handler is too slow — Stripe expects a prompt success response	Move heavy processing to a background job. Return 200 immediately, process async.
`Duplicate events`	Stripe sends the same event multiple times for reliability	Use the event ID for idempotency. SDNBros deduplicates automatically.

Why Use SDNBros for Stripe Webhooks?

Auto-classification: We detect Stripe webhooks by signature headers — zero configuration
Root-cause diagnosis: When a delivery fails, we tell you exactly why (timeout, auth error, server crash) with Stripe-specific context
Replay safety: Know if it's safe to replay a failed event before you click the button
Operational visibility: Public service and network status telemetry
CLI tunnel: sdnbros webhook tunnel --port 3000 forwards webhooks to localhost

Start monitoring Stripe webhooks for free

Create an endpoint and evaluate auto-classification, diagnosis, and replay.

Start Free