Endpoints

What's an endpoint?

An endpoint is a permanent URL that captures incoming HTTP requests. Each endpoint has a unique slug, so your webhook URL looks like:

https://thunderhooks.com/h/{slug}

All HTTP methods work — POST, GET, PUT, PATCH, DELETE, and anything else your provider sends.

Creating endpoints

From the dashboard, click New Endpoint and enter a name. ThunderHooks generates a random slug, but you can customize it if you want something memorable.

Mock responses

By default, endpoints return a 200 OK with an empty body. You can customize this to simulate your real API:

1. Open the endpoint and click Settings
2. Enable Mock Response
3. Set the status code (e.g. 201)
4. Add a response body

{
  "status": "received",
  "id": "mock-12345"
}

This is useful when the webhook provider expects a specific response format or status code to confirm delivery.

Request history

Every request is stored and available in the endpoint detail view. You can see:

• The 50 most recent requests
• Full headers, body, and query params for each
• Timestamp and source IP

Replaying requests

Click Replay on any captured request to re-send it to an arbitrary URL. This is handy for:

• Debugging a handler that failed on the original delivery
• Testing retries against your local development server
• Reproducing issues in a staging environment

Real-time updates

The endpoint detail page uses server-sent events (SSE) to show new requests as they arrive. No need to refresh — incoming webhooks appear instantly.