How to Test Stripe Webhooks
Stripe uses webhooks to notify your application when events like payments, subscriptions, and disputes occur.
Looking for the broader picture? See the 7 best webhook testing tools (2026), or if you're already on Webhook.site, the 60-second migration to HookRay.
Stripe Official Webhook Docs1. Stripe Webhook Events
Stripe can send the following webhook events to your endpoint:
checkout.session.completedpayment_intent.succeededpayment_intent.payment_failedcustomer.subscription.createdcustomer.subscription.updatedcustomer.subscription.deletedinvoice.paidinvoice.payment_failedcharge.refundedcharge.dispute.created2. Set Up a Test Endpoint with HookRay
Follow these steps to start receiving Stripe webhooks for testing:
- Go to HookRay and click "Start Testing — Free" to get your unique webhook URL.
- Copy the URL (e.g.,
https://h.hookray.com/abc123). - In your Stripe dashboard, navigate to the webhook settings and paste the HookRay URL as your endpoint.
- Select the events you want to receive (see list above).
- Trigger a test event — HookRay will show the incoming webhook in real-time.
3. Sample Stripe Webhook Payload
Here's an example of what a Stripe webhook payload looks like:
{
"id": "evt_1234567890",
"type": "checkout.session.completed",
"data": {
"object": {
"id": "cs_test_abc123",
"amount_total": 4999,
"currency": "usd",
"customer_email": "customer@example.com",
"payment_status": "paid"
}
}
}4. How to Verify Stripe Webhook Signatures
- Algorithm
- HMAC-SHA256
- Header
Stripe-Signature- Encoding
- hex
Stripe sends a composite header: `t={unix_timestamp},v1={signature}`. The signed payload is `{timestamp}.{raw_request_body}`.
Node.js (Express)
// Express + Stripe SDK — let the SDK do the timing-safe comparison.
import Stripe from 'stripe';
const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!);
app.post(
'/webhooks/stripe',
// CRITICAL: the verifier needs the RAW body, not parsed JSON.
express.raw({ type: 'application/json' }),
(req, res) => {
const sig = req.headers['stripe-signature'] as string;
try {
const event = stripe.webhooks.constructEvent(
req.body,
sig,
process.env.STRIPE_WEBHOOK_SECRET!,
);
// event.type, event.data.object — safe to act on
res.json({ received: true });
} catch (err) {
res.status(400).send(`Webhook Error: ${(err as Error).message}`);
}
},
);Python (FastAPI)
# FastAPI + stripe-python.
import os, stripe
from fastapi import FastAPI, Request, HTTPException
stripe.api_key = os.environ['STRIPE_SECRET_KEY']
app = FastAPI()
@app.post("/webhooks/stripe")
async def stripe_webhook(request: Request):
payload = await request.body() # raw bytes
sig_header = request.headers.get('stripe-signature')
try:
event = stripe.Webhook.construct_event(
payload=payload,
sig_header=sig_header,
secret=os.environ['STRIPE_WEBHOOK_SECRET'],
)
except (ValueError, stripe.error.SignatureVerificationError):
raise HTTPException(status_code=400, detail='invalid signature')
return {'received': True, 'type': event['type']}Capture a real Stripe webhook with HookRay first, then replay the captured request against your verifier locally — that way you can iterate on the verification code without re-triggering events in Stripe. Read Stripe's official signing docs for the canonical reference, or see the cross-service signature verification guide for Ruby and timing-safe comparison patterns.
5. How Stripe Retries Failed Webhooks
- Max attempts
- 17
- Total window
- Up to 3 days
- Backoff
- Exponential, starting ~immediately
- Retries on
- 5xx, timeout, connection error
- Stops on
- Any 2xx response. 4xx also stops retries (treated as terminal).
If your handler is going to see the same Stripe event multiple times, you need idempotency by event ID and the right response codes — see the Webhook Retry Strategies guide for the full pattern (idempotency tables, dead-letter queues, replaying captured events for tests). Cross-reference with Stripe's official retry docs before relying on these numbers in production.
6. Frequently Asked Questions
How do I test Stripe webhooks without deploying?
Use HookRay to get an instant public webhook URL. Paste it into your Stripe dashboard's webhook configuration, trigger an event, and watch the payload arrive in real time. No code, no ngrok, no deployment required. The free tier captures 100 requests per month and works on all Stripe event types.
Why aren't my Stripe webhooks arriving?
The four most common causes: (1) the endpoint URL isn't publicly accessible — Stripe can't reach localhost; (2) the wrong events are subscribed in your Stripe dashboard; (3) signature verification is rejecting the request before your handler runs; (4) Stripe can't reach your server because of a firewall, expired SSL certificate, or wrong DNS. Use HookRay's URL to isolate which of these four is failing — if HookRay receives the webhook, the problem is in your handler. If HookRay doesn't, the problem is in Stripe configuration.
Why am I getting 400 or 500 errors from my Stripe webhook?
Stripe reports the response status your endpoint returned. HookRay accepts any payload and returns 200 OK by default, so if you see 400/500 in your Stripe dashboard while pointing at HookRay, the issue is in Stripe's configuration (wrong event, malformed signing secret, etc.). If you point at your own endpoint and get 400/500, the issue is in your handler — capture the request with HookRay, replay it locally, and debug from the captured payload.
How do I verify Stripe webhook signatures?
Stripe signs each webhook request with a shared secret. Capture the raw headers and body using HookRay, then verify the signature in your application using Stripe's SDK or a standard HMAC library. Once verification works against HookRay-captured data, you can safely deploy. Stripe's docs (linked above) cover the exact signing algorithm.
Can I replay a captured Stripe webhook?
Yes — HookRay's replay feature re-sends any captured webhook to a different endpoint with one click. This is the fastest way to fix a buggy handler: capture the payload once, fix your code, and replay until it works. No need to re-trigger the event in Stripe.
7. Next Steps
- Use HookRay's webhook replay feature to re-send captured webhooks while building your handler
- Enable smart parsing (Pro plan) to see Stripe-specific fields highlighted automatically
- Check the Stripe webhook documentation for the complete event reference
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Start Testing Stripe Webhooks — FreeFree PDF: Webhook Testing Cheat Sheet 2026
One-page reference for 50+ APIs — canonical events, signing methods, sample payloads. Print it, pin it, share it.
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