Can I send a sample Sentry webhook without a Sentry account?

Yes. webhooks.cc ships Sentry templates (issue.created, issue.resolved, error.created) with realistic payloads and correctly computed signature headers. Send them from the dashboard, the SDK, or the MCP server to exercise your handler end-to-end.

How do I verify Sentry webhook signatures?

Sentry signs each delivery with the sentry-hook-signature header using HMAC-SHA256. webhooks.cc verifies these signatures for you: add your signing secret to the endpoint and every captured request is marked valid or invalid in the dashboard.

Is the Sentry webhook tester free?

Yes. A free account gets you persistent endpoints, 50 requests per day, 7-day retention, and full CLI, SDK, and MCP access — no credit card. You can also try a guest endpoint without an account: up to 25 requests for 12 hours.

Test Sentry webhooks

Sentry sends webhooks for issues, errors, and alert rule triggers via internal integrations. Capture them on a free webhooks.cc endpoint to see exactly what Sentry sends — or fire realistic, correctly signed sample payloads at your own handler without touching a production account.

Start free:

No credit card · 50 requests/day free · or get a guest URL without an account

Prefer a walkthrough? Read the local webhook testing guide.

How to test Sentry webhooks

1
Create a webhook endpoint
Sign in free with GitHub or Google to create a persistent endpoint — or grab an instant guest URL at webhooks.cc/go without an account.
2
Point Sentry at your URL
Paste the endpoint URL into Sentry: Sentry → Settings → Developer Settings → your integration → Webhook URL.
3
Inspect what arrives
Each delivery appears live in the dashboard with method, headers, body, query parameters, and source IP.
4
Forward to localhost or assert in CI
Run whk tunnel <port> to forward webhooks to a local server, or use the TypeScript SDK to wait for and assert on deliveries in tests.

Sentry webhook signature

Signature header	sentry-hook-signature
Algorithm	HMAC-SHA256
Verification in webhooks.cc	Supported — add your signing secret and every request is checked automatically

New to signature verification? Read the webhook signature verification guide.

Send sample Sentry events

These Sentry templates ship with realistic payloads and valid signature headers. Send them from the dashboard's Send button, the SDK, or your AI agent via MCP.

issue.createdissue.resolvederror.created

# Send a signed Sentry sample with the SDK
await client.endpoints.sendTemplate( slug, {
  provider: "sentry",
  template: "issue.created",
  secret: "your-test-secret",
});

Everything in one place

Live dashboard — see deliveries the moment they arrive
Forward to localhost with whk tunnel
Replay any captured request to any URL
Mock responses with custom status, headers, and body
TypeScript SDK assertions for CI
MCP server for AI coding agents

Sentry webhook questions

Create a free endpoint on webhooks.cc — sign in with GitHub or Google, or use a guest endpoint without an account — then configure it as your webhook URL: Sentry → Settings → Developer Settings → your integration → Webhook URL. Every delivery shows up live in the dashboard with full headers, body, and query parameters. To hit a local server, run whk tunnel <port> and the CLI forwards each webhook to localhost.

Your Sentry webhook URL is seconds away

No credit card · or try without an account

Test Sentry webhooks

How to test Sentry webhooks

Create a webhook endpoint

Point Sentry at your URL

Inspect what arrives

Forward to localhost or assert in CI

Sentry webhook signature

Send sample Sentry events

Everything in one place

Sentry webhook questions

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