# Webhook subscriptions — API reference

> Outbound, signed webhooks — subscribe, test, inspect deliveries, redeliver. REST endpoints with request and response fields, examples in curl, JavaScript, Python, Go and PHP, and an in-browser Try it console.

Source: https://upfour.io/docs/api/webhook-subscriptions

[Developers](https://upfour.io/docs/api.md)/Platform

Outbound, signed webhooks — subscribe, test, inspect deliveries, redeliver.

Base URL `https://app.upfour.io/v1`. Send your key as `Authorization: Bearer <key>`; every key acts on your real Company, so [test without paging anyone](https://upfour.io/docs/api/testing.md). New here? Start with the [quickstart](https://upfour.io/docs/api/quickstart.md). The examples read the key from `UP4_API_KEY`.

## Everyday

[GET **List webhook subscriptions** /webhook-subscriptions](https://upfour.io/docs/api/webhook-subscriptions/list-webhook-subscriptions.md)[POST **Create a webhook subscription** /webhook-subscriptions](https://upfour.io/docs/api/webhook-subscriptions/create-a-webhook-subscription.md)[PUT **Update a webhook subscription** /webhook-subscriptions/{subscriptionID}](https://upfour.io/docs/api/webhook-subscriptions/update-a-webhook-subscription.md)[DEL **Delete a webhook subscription** /webhook-subscriptions/{subscriptionID}](https://upfour.io/docs/api/webhook-subscriptions/delete-a-webhook-subscription.md)

## Deliveries

[GET **List webhook deliveries** /webhook-subscriptions/{subscriptionID}/deliveries](https://upfour.io/docs/api/webhook-subscriptions/list-webhook-deliveries.md)[POST **Redeliver a webhook delivery** /webhook-subscriptions/{subscriptionID}/redeliver/{deliveryID}](https://upfour.io/docs/api/webhook-subscriptions/redeliver-a-webhook-delivery.md)

## Control

[POST **Rotate a webhook subscription secret** /webhook-subscriptions/{subscriptionID}/rotate-secret](https://upfour.io/docs/api/webhook-subscriptions/rotate-a-webhook-subscription-secret.md)[POST **Send a webhook test** /webhook-subscriptions/{subscriptionID}/test](https://upfour.io/docs/api/webhook-subscriptions/send-a-webhook-test.md)